UAT_simple.json

{"children": [{"name": "Astrophysical processes", "uri": "http://astrothesaurus.org/uat/104", "children": [{"name": "Astrophysical magnetism", "uri": "http://astrothesaurus.org/uat/102", "children": [{"name": "Cosmic magnetic fields theory", "uri": "http://astrothesaurus.org/uat/321"}, {"name": "Emerging flux tubes", "uri": "http://astrothesaurus.org/uat/458"}, {"name": "Magnetic fields", "uri": "http://astrothesaurus.org/uat/994", "children": [{"name": "Geomagnetic fields", "uri": "http://astrothesaurus.org/uat/646"}, {"name": "Magnetic anomalies", "uri": "http://astrothesaurus.org/uat/993"}, {"name": "Primordial magnetic fields", "uri": "http://astrothesaurus.org/uat/1294"}]}]}, {"name": "Gravitation", "uri": "http://astrothesaurus.org/uat/661", "children": [{"name": "Celestial mechanics", "uri": "http://astrothesaurus.org/uat/211", "children": [{"name": "Apparent superluminal motion", "uri": "http://astrothesaurus.org/uat/61"}, {"name": "Astrodynamics", "uri": "http://astrothesaurus.org/uat/76"}, {"name": "Close encounters", "uri": "http://astrothesaurus.org/uat/255", "children": [{"name": "Opik theory", "uri": "http://astrothesaurus.org/uat/1162"}]}, {"name": "Kepler's laws", "uri": "http://astrothesaurus.org/uat/2322"}, {"name": "Lunar theory", "uri": "http://astrothesaurus.org/uat/975", "children": [{"name": "Annual equation", "uri": "http://astrothesaurus.org/uat/41"}, {"name": "Anomalistic month", "uri": "http://astrothesaurus.org/uat/44"}, {"name": "Lunar node regression", "uri": "http://astrothesaurus.org/uat/964"}, {"name": "Lunation", "uri": "http://astrothesaurus.org/uat/2316"}]}, {"name": "N-body problem", "uri": "http://astrothesaurus.org/uat/1082", "children": [{"name": "Few-body systems", "uri": "http://astrothesaurus.org/uat/531"}]}, {"name": "Orbits", "uri": "http://astrothesaurus.org/uat/1184", "children": [{"name": "Orbit determination", "uri": "http://astrothesaurus.org/uat/1175"}, {"name": "Orbital elements", "uri": "http://astrothesaurus.org/uat/1177", "children": [{"name": "Apsides", "uri": "http://astrothesaurus.org/uat/63", "children": [{"name": "Apastron", "uri": "http://astrothesaurus.org/uat/51"}, {"name": "Aphelion", "uri": "http://astrothesaurus.org/uat/55"}, {"name": "Apocenter", "uri": "http://astrothesaurus.org/uat/56"}, {"name": "Apogee", "uri": "http://astrothesaurus.org/uat/57"}, {"name": "Periapsis", "uri": "http://astrothesaurus.org/uat/1207"}, {"name": "Periastron", "uri": "http://astrothesaurus.org/uat/1208"}, {"name": "Perigee", "uri": "http://astrothesaurus.org/uat/1209"}, {"name": "Perihelion", "uri": "http://astrothesaurus.org/uat/1210"}]}, {"name": "Argument of perigee", "uri": "http://astrothesaurus.org/uat/65"}, {"name": "Argument of perihelion", "uri": "http://astrothesaurus.org/uat/66"}, {"name": "Center of mass", "uri": "http://astrothesaurus.org/uat/216"}, {"name": "Eccentricity", "uri": "http://astrothesaurus.org/uat/441"}, {"name": "Elliptical orbits", "uri": "http://astrothesaurus.org/uat/457", "children": [{"name": "Major axis", "uri": "http://astrothesaurus.org/uat/1001"}, {"name": "Minor axis", "uri": "http://astrothesaurus.org/uat/1064"}, {"name": "Semimajor axis", "uri": "http://astrothesaurus.org/uat/1445"}, {"name": "Semiminor axis", "uri": "http://astrothesaurus.org/uat/1446"}]}, {"name": "Inclination", "uri": "http://astrothesaurus.org/uat/780"}, {"name": "Longitude of the ascending node", "uri": "http://astrothesaurus.org/uat/936"}, {"name": "Longitude of the descending node", "uri": "http://astrothesaurus.org/uat/937"}, {"name": "Orbital anomalies", "uri": "http://astrothesaurus.org/uat/1176", "children": [{"name": "Eccentric anomaly", "uri": "http://astrothesaurus.org/uat/440"}, {"name": "Mean anomaly", "uri": "http://astrothesaurus.org/uat/1019"}, {"name": "True anomaly", "uri": "http://astrothesaurus.org/uat/1719"}]}, {"name": "Osculatory elements", "uri": "http://astrothesaurus.org/uat/1190"}, {"name": "Position angle", "uri": "http://astrothesaurus.org/uat/1286"}, {"name": "Synodic period", "uri": "http://astrothesaurus.org/uat/1676"}]}, {"name": "Orbital motion", "uri": "http://astrothesaurus.org/uat/1179", "children": [{"name": "Analemma", "uri": "http://astrothesaurus.org/uat/2325"}, {"name": "Apsidal motion", "uri": "http://astrothesaurus.org/uat/62"}, {"name": "Circular orbits", "uri": "http://astrothesaurus.org/uat/233"}, {"name": "Elliptical orbits", "uri": "http://astrothesaurus.org/uat/457", "children": [{"name": "Major axis", "uri": "http://astrothesaurus.org/uat/1001"}, {"name": "Minor axis", "uri": "http://astrothesaurus.org/uat/1064"}, {"name": "Semimajor axis", "uri": "http://astrothesaurus.org/uat/1445"}, {"name": "Semiminor axis", "uri": "http://astrothesaurus.org/uat/1446"}]}, {"name": "Equation of the center", "uri": "http://astrothesaurus.org/uat/465"}, {"name": "Geocentric orbit", "uri": "http://astrothesaurus.org/uat/643"}, {"name": "Heliocentric orbit", "uri": "http://astrothesaurus.org/uat/706"}, {"name": "Hyperbolic orbit", "uri": "http://astrothesaurus.org/uat/773"}, {"name": "Keplerian orbit", "uri": "http://astrothesaurus.org/uat/884"}, {"name": "Libration", "uri": "http://astrothesaurus.org/uat/917"}, {"name": "Lunar node regression", "uri": "http://astrothesaurus.org/uat/964"}, {"name": "Osculating orbit", "uri": "http://astrothesaurus.org/uat/1189"}, {"name": "Parabolic orbit", "uri": "http://astrothesaurus.org/uat/1196"}, {"name": "Periodic orbit", "uri": "http://astrothesaurus.org/uat/1212"}, {"name": "Polar orbit", "uri": "http://astrothesaurus.org/uat/1275"}, {"name": "Prograde orbit", "uri": "http://astrothesaurus.org/uat/2326"}, {"name": "Retrograde orbit", "uri": "http://astrothesaurus.org/uat/2327"}]}, {"name": "Orbital nodes", "uri": "http://astrothesaurus.org/uat/1180", "children": [{"name": "Ascending node", "uri": "http://astrothesaurus.org/uat/69"}, {"name": "Descending node", "uri": "http://astrothesaurus.org/uat/374"}]}, {"name": "Orbital resonances", "uri": "http://astrothesaurus.org/uat/1181", "children": [{"name": "Kirkwood gaps", "uri": "http://astrothesaurus.org/uat/889"}]}, {"name": "Orbital theory", "uri": "http://astrothesaurus.org/uat/1182", "children": [{"name": "Bode's law", "uri": "http://astrothesaurus.org/uat/170"}]}, {"name": "Spin-orbit resonances", "uri": "http://astrothesaurus.org/uat/2296"}]}, {"name": "Perturbation methods", "uri": "http://astrothesaurus.org/uat/1215"}, {"name": "Three-body problem", "uri": "http://astrothesaurus.org/uat/1695", "children": [{"name": "Lagrangian points", "uri": "http://astrothesaurus.org/uat/897"}, {"name": "Mass ratio", "uri": "http://astrothesaurus.org/uat/1012"}, {"name": "Roche limit", "uri": "http://astrothesaurus.org/uat/1404"}, {"name": "Roche lobe", "uri": "http://astrothesaurus.org/uat/1405"}]}, {"name": "Two-body problem", "uri": "http://astrothesaurus.org/uat/1723"}]}, {"name": "General relativity", "uri": "http://astrothesaurus.org/uat/641", "children": [{"name": "Einstein field equations", "uri": "http://astrothesaurus.org/uat/450"}, {"name": "Evolution equation", "uri": "http://astrothesaurus.org/uat/480"}, {"name": "Geodesics", "uri": "http://astrothesaurus.org/uat/645", "children": [{"name": "Gravitational deflection", "uri": "http://astrothesaurus.org/uat/663"}, {"name": "Penrose limit", "uri": "http://astrothesaurus.org/uat/1203"}]}, {"name": "Gravitational collapse", "uri": "http://astrothesaurus.org/uat/662", "children": [{"name": "Chandrasekhar limit", "uri": "http://astrothesaurus.org/uat/221"}, {"name": "Jeans mass", "uri": "http://astrothesaurus.org/uat/869"}, {"name": "Schonberg-Chandrasekhar limit", "uri": "http://astrothesaurus.org/uat/2045"}]}, {"name": "Gravitational lensing", "uri": "http://astrothesaurus.org/uat/670", "children": [{"name": "Caustic curve", "uri": "http://astrothesaurus.org/uat/2151", "children": [{"name": "Caustic crossing", "uri": "http://astrothesaurus.org/uat/206"}]}, {"name": "Critical curve", "uri": "http://astrothesaurus.org/uat/2152"}, {"name": "Einstein rings", "uri": "http://astrothesaurus.org/uat/451", "children": [{"name": "Luminous arcs", "uri": "http://astrothesaurus.org/uat/943"}]}, {"name": "Gravitational lensing shear", "uri": "http://astrothesaurus.org/uat/671"}, {"name": "Gravitational microlensing", "uri": "http://astrothesaurus.org/uat/672", "children": [{"name": "Astrometric microlensing effect", "uri": "http://astrothesaurus.org/uat/2140"}, {"name": "Binary lens microlensing", "uri": "http://astrothesaurus.org/uat/2136"}, {"name": "Binary source microlensing", "uri": "http://astrothesaurus.org/uat/2141", "children": [{"name": "Xallarap effect", "uri": "http://astrothesaurus.org/uat/2139"}]}, {"name": "Finite-source photometric effect", "uri": "http://astrothesaurus.org/uat/2142"}, {"name": "Gravitational microlensing exoplanet detection", "uri": "http://astrothesaurus.org/uat/2147"}, {"name": "High-resolution microlensing event imaging", "uri": "http://astrothesaurus.org/uat/2138"}, {"name": "Lens orbital motion", "uri": "http://astrothesaurus.org/uat/2143"}, {"name": "Microlensing event rate", "uri": "http://astrothesaurus.org/uat/2146"}, {"name": "Microlensing optical depth", "uri": "http://astrothesaurus.org/uat/2145"}, {"name": "Microlensing parallax", "uri": "http://astrothesaurus.org/uat/2144", "children": [{"name": "Annual microlensing parallax", "uri": "http://astrothesaurus.org/uat/2149"}, {"name": "Satellite microlensing parallax", "uri": "http://astrothesaurus.org/uat/2148"}, {"name": "Topocentric microlensing parallax", "uri": "http://astrothesaurus.org/uat/2150"}]}, {"name": "Quasar microlensing", "uri": "http://astrothesaurus.org/uat/1318"}, {"name": "Triple lens microlensing", "uri": "http://astrothesaurus.org/uat/2137"}]}, {"name": "Strong gravitational lensing", "uri": "http://astrothesaurus.org/uat/1643"}, {"name": "Weak gravitational lensing", "uri": "http://astrothesaurus.org/uat/1797"}]}, {"name": "Gravitational singularities", "uri": "http://astrothesaurus.org/uat/674", "children": [{"name": "Conical singularities", "uri": "http://astrothesaurus.org/uat/294"}, {"name": "Curvature singularities", "uri": "http://astrothesaurus.org/uat/344"}, {"name": "Event horizons", "uri": "http://astrothesaurus.org/uat/479"}, {"name": "Naked singularities", "uri": "http://astrothesaurus.org/uat/1087"}, {"name": "Ring singularities", "uri": "http://astrothesaurus.org/uat/1402"}, {"name": "Wormholes", "uri": "http://astrothesaurus.org/uat/1808"}]}, {"name": "Gravitational waves", "uri": "http://astrothesaurus.org/uat/678", "children": [{"name": "Gravitational wave sources", "uri": "http://astrothesaurus.org/uat/677"}, {"name": "pp waves", "uri": "http://astrothesaurus.org/uat/1288"}]}, {"name": "Spacetime metric", "uri": "http://astrothesaurus.org/uat/1550", "children": [{"name": "Friedmann-Robertson-Walker metric", "uri": "http://astrothesaurus.org/uat/550"}, {"name": "Kerr metric", "uri": "http://astrothesaurus.org/uat/887"}, {"name": "Schwarzschild metric", "uri": "http://astrothesaurus.org/uat/1434", "children": [{"name": "Schwarzschild radius", "uri": "http://astrothesaurus.org/uat/1435"}]}]}]}, {"name": "Newtonian gravitation", "uri": "http://astrothesaurus.org/uat/1110", "children": [{"name": "Accretion", "uri": "http://astrothesaurus.org/uat/14", "children": [{"name": "Bondi accretion", "uri": "http://astrothesaurus.org/uat/174"}, {"name": "Galaxy accretion", "uri": "http://astrothesaurus.org/uat/575", "children": [{"name": "Galaxy infall", "uri": "http://astrothesaurus.org/uat/599"}]}, {"name": "Stellar accretion", "uri": "http://astrothesaurus.org/uat/1578"}]}, {"name": "Gravitational disruption", "uri": "http://astrothesaurus.org/uat/664", "children": [{"name": "Tidal disruption", "uri": "http://astrothesaurus.org/uat/1696"}]}, {"name": "Gravitational energy", "uri": "http://astrothesaurus.org/uat/665"}, {"name": "Gravitational equilibrium", "uri": "http://astrothesaurus.org/uat/666"}, {"name": "Gravitational fields", "uri": "http://astrothesaurus.org/uat/667"}, {"name": "Gravitational instability", "uri": "http://astrothesaurus.org/uat/668"}, {"name": "Gravitational interaction", "uri": "http://astrothesaurus.org/uat/669", "children": [{"name": "Dynamical friction", "uri": "http://astrothesaurus.org/uat/422"}, {"name": "N-body simulations", "uri": "http://astrothesaurus.org/uat/1083"}, {"name": "Orbital resonances", "uri": "http://astrothesaurus.org/uat/1181", "children": [{"name": "Kirkwood gaps", "uri": "http://astrothesaurus.org/uat/889"}]}, {"name": "Three-body problem", "uri": "http://astrothesaurus.org/uat/1695", "children": [{"name": "Lagrangian points", "uri": "http://astrothesaurus.org/uat/897"}, {"name": "Mass ratio", "uri": "http://astrothesaurus.org/uat/1012"}, {"name": "Roche limit", "uri": "http://astrothesaurus.org/uat/1404"}, {"name": "Roche lobe", "uri": "http://astrothesaurus.org/uat/1405"}]}, {"name": "Tidal interaction", "uri": "http://astrothesaurus.org/uat/1699", "children": [{"name": "Roche limit", "uri": "http://astrothesaurus.org/uat/1404"}, {"name": "Tidal disruption", "uri": "http://astrothesaurus.org/uat/1696"}, {"name": "Tidal distortion", "uri": "http://astrothesaurus.org/uat/1697"}, {"name": "Tidal friction", "uri": "http://astrothesaurus.org/uat/1698"}, {"name": "Tidal radius", "uri": "http://astrothesaurus.org/uat/1700"}, {"name": "Tides", "uri": "http://astrothesaurus.org/uat/1702", "children": [{"name": "Atmospheric tides", "uri": "http://astrothesaurus.org/uat/118"}, {"name": "Ocean tides", "uri": "http://astrothesaurus.org/uat/1152", "children": [{"name": "Polar tides", "uri": "http://astrothesaurus.org/uat/1276"}]}, {"name": "Solid body tides", "uri": "http://astrothesaurus.org/uat/2298"}]}]}, {"name": "Two-body problem", "uri": "http://astrothesaurus.org/uat/1723"}]}, {"name": "Gravity anomaly", "uri": "http://astrothesaurus.org/uat/679", "children": [{"name": "Great Attractor", "uri": "http://astrothesaurus.org/uat/682"}, {"name": "Mascon", "uri": "http://astrothesaurus.org/uat/1010"}]}]}, {"name": "Non-standard theories of gravity", "uri": "http://astrothesaurus.org/uat/1118", "children": [{"name": "Modified Newtonian dynamics", "uri": "http://astrothesaurus.org/uat/1069"}, {"name": "Quantum gravity", "uri": "http://astrothesaurus.org/uat/1314", "children": [{"name": "Gravastars", "uri": "http://astrothesaurus.org/uat/660"}]}, {"name": "Scalar-tensor-vector gravity", "uri": "http://astrothesaurus.org/uat/1428"}, {"name": "Two-dimensional gravity", "uri": "http://astrothesaurus.org/uat/1725"}]}]}, {"name": "Nuclear astrophysics", "uri": "http://astrothesaurus.org/uat/1129", "children": [{"name": "Astrophysical explosive burning", "uri": "http://astrothesaurus.org/uat/100"}, {"name": "Neutrino oscillations", "uri": "http://astrothesaurus.org/uat/1104"}, {"name": "Neutron stars", "uri": "http://astrothesaurus.org/uat/1108", "children": [{"name": "Magnetars", "uri": "http://astrothesaurus.org/uat/992", "children": [{"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}]}, {"name": "Neutron star cores", "uri": "http://astrothesaurus.org/uat/1107"}, {"name": "Pulsars", "uri": "http://astrothesaurus.org/uat/1306", "children": [{"name": "Binary pulsars", "uri": "http://astrothesaurus.org/uat/153"}, {"name": "Millisecond pulsars", "uri": "http://astrothesaurus.org/uat/1062"}, {"name": "Optical pulsars", "uri": "http://astrothesaurus.org/uat/1173"}, {"name": "Radio pulsars", "uri": "http://astrothesaurus.org/uat/1353"}, {"name": "Rotation powered pulsars", "uri": "http://astrothesaurus.org/uat/1408"}]}, {"name": "Relativistic stars", "uri": "http://astrothesaurus.org/uat/1392", "children": [{"name": "Relativistic binary stars", "uri": "http://astrothesaurus.org/uat/1386"}]}]}, {"name": "Nuclear fission", "uri": "http://astrothesaurus.org/uat/2323"}, {"name": "Nuclear fusion", "uri": "http://astrothesaurus.org/uat/2324"}, {"name": "Nucleosynthesis", "uri": "http://astrothesaurus.org/uat/1131", "children": [{"name": "Big Bang nucleosynthesis", "uri": "http://astrothesaurus.org/uat/151"}, {"name": "Carbon burning", "uri": "http://astrothesaurus.org/uat/195"}, {"name": "Cosmic ray nucleosynthesis", "uri": "http://astrothesaurus.org/uat/326"}, {"name": "Explosive nucleosynthesis", "uri": "http://astrothesaurus.org/uat/503"}, {"name": "Helium burning", "uri": "http://astrothesaurus.org/uat/716"}, {"name": "Hydrogen burning", "uri": "http://astrothesaurus.org/uat/768", "children": [{"name": "Carbon-nitrogen cycle", "uri": "http://astrothesaurus.org/uat/194"}, {"name": "Proton-proton reaction", "uri": "http://astrothesaurus.org/uat/1299"}]}, {"name": "Oxygen burning", "uri": "http://astrothesaurus.org/uat/1193"}, {"name": "P-process", "uri": "http://astrothesaurus.org/uat/1195"}, {"name": "R-process", "uri": "http://astrothesaurus.org/uat/1324"}, {"name": "S-process", "uri": "http://astrothesaurus.org/uat/1419"}, {"name": "Silicon burning", "uri": "http://astrothesaurus.org/uat/1457"}, {"name": "Stellar nucleosynthesis", "uri": "http://astrothesaurus.org/uat/1616", "children": [{"name": "Helium burning", "uri": "http://astrothesaurus.org/uat/716"}, {"name": "Hydrogen burning", "uri": "http://astrothesaurus.org/uat/768", "children": [{"name": "Carbon-nitrogen cycle", "uri": "http://astrothesaurus.org/uat/194"}, {"name": "Proton-proton reaction", "uri": "http://astrothesaurus.org/uat/1299"}]}, {"name": "S-process", "uri": "http://astrothesaurus.org/uat/1419"}]}]}, {"name": "Solar neutrinos", "uri": "http://astrothesaurus.org/uat/1511"}]}, {"name": "Relativity", "uri": "http://astrothesaurus.org/uat/1393", "children": [{"name": "General relativity", "uri": "http://astrothesaurus.org/uat/641", "children": [{"name": "Einstein field equations", "uri": "http://astrothesaurus.org/uat/450"}, {"name": "Evolution equation", "uri": "http://astrothesaurus.org/uat/480"}, {"name": "Geodesics", "uri": "http://astrothesaurus.org/uat/645", "children": [{"name": "Gravitational deflection", "uri": "http://astrothesaurus.org/uat/663"}, {"name": "Penrose limit", "uri": "http://astrothesaurus.org/uat/1203"}]}, {"name": "Gravitational collapse", "uri": "http://astrothesaurus.org/uat/662", "children": [{"name": "Chandrasekhar limit", "uri": "http://astrothesaurus.org/uat/221"}, {"name": "Jeans mass", "uri": "http://astrothesaurus.org/uat/869"}, {"name": "Schonberg-Chandrasekhar limit", "uri": "http://astrothesaurus.org/uat/2045"}]}, {"name": "Gravitational lensing", "uri": "http://astrothesaurus.org/uat/670", "children": [{"name": "Caustic curve", "uri": "http://astrothesaurus.org/uat/2151", "children": [{"name": "Caustic crossing", "uri": "http://astrothesaurus.org/uat/206"}]}, {"name": "Critical curve", "uri": "http://astrothesaurus.org/uat/2152"}, {"name": "Einstein rings", "uri": "http://astrothesaurus.org/uat/451", "children": [{"name": "Luminous arcs", "uri": "http://astrothesaurus.org/uat/943"}]}, {"name": "Gravitational lensing shear", "uri": "http://astrothesaurus.org/uat/671"}, {"name": "Gravitational microlensing", "uri": "http://astrothesaurus.org/uat/672", "children": [{"name": "Astrometric microlensing effect", "uri": "http://astrothesaurus.org/uat/2140"}, {"name": "Binary lens microlensing", "uri": "http://astrothesaurus.org/uat/2136"}, {"name": "Binary source microlensing", "uri": "http://astrothesaurus.org/uat/2141", "children": [{"name": "Xallarap effect", "uri": "http://astrothesaurus.org/uat/2139"}]}, {"name": "Finite-source photometric effect", "uri": "http://astrothesaurus.org/uat/2142"}, {"name": "Gravitational microlensing exoplanet detection", "uri": "http://astrothesaurus.org/uat/2147"}, {"name": "High-resolution microlensing event imaging", "uri": "http://astrothesaurus.org/uat/2138"}, {"name": "Lens orbital motion", "uri": "http://astrothesaurus.org/uat/2143"}, {"name": "Microlensing event rate", "uri": "http://astrothesaurus.org/uat/2146"}, {"name": "Microlensing optical depth", "uri": "http://astrothesaurus.org/uat/2145"}, {"name": "Microlensing parallax", "uri": "http://astrothesaurus.org/uat/2144", "children": [{"name": "Annual microlensing parallax", "uri": "http://astrothesaurus.org/uat/2149"}, {"name": "Satellite microlensing parallax", "uri": "http://astrothesaurus.org/uat/2148"}, {"name": "Topocentric microlensing parallax", "uri": "http://astrothesaurus.org/uat/2150"}]}, {"name": "Quasar microlensing", "uri": "http://astrothesaurus.org/uat/1318"}, {"name": "Triple lens microlensing", "uri": "http://astrothesaurus.org/uat/2137"}]}, {"name": "Strong gravitational lensing", "uri": "http://astrothesaurus.org/uat/1643"}, {"name": "Weak gravitational lensing", "uri": "http://astrothesaurus.org/uat/1797"}]}, {"name": "Gravitational singularities", "uri": "http://astrothesaurus.org/uat/674", "children": [{"name": "Conical singularities", "uri": "http://astrothesaurus.org/uat/294"}, {"name": "Curvature singularities", "uri": "http://astrothesaurus.org/uat/344"}, {"name": "Event horizons", "uri": "http://astrothesaurus.org/uat/479"}, {"name": "Naked singularities", "uri": "http://astrothesaurus.org/uat/1087"}, {"name": "Ring singularities", "uri": "http://astrothesaurus.org/uat/1402"}, {"name": "Wormholes", "uri": "http://astrothesaurus.org/uat/1808"}]}, {"name": "Gravitational waves", "uri": "http://astrothesaurus.org/uat/678", "children": [{"name": "Gravitational wave sources", "uri": "http://astrothesaurus.org/uat/677"}, {"name": "pp waves", "uri": "http://astrothesaurus.org/uat/1288"}]}, {"name": "Spacetime metric", "uri": "http://astrothesaurus.org/uat/1550", "children": [{"name": "Friedmann-Robertson-Walker metric", "uri": "http://astrothesaurus.org/uat/550"}, {"name": "Kerr metric", "uri": "http://astrothesaurus.org/uat/887"}, {"name": "Schwarzschild metric", "uri": "http://astrothesaurus.org/uat/1434", "children": [{"name": "Schwarzschild radius", "uri": "http://astrothesaurus.org/uat/1435"}]}]}]}, {"name": "Relativistic mechanics", "uri": "http://astrothesaurus.org/uat/1391", "children": [{"name": "Relativistic fluid dynamics", "uri": "http://astrothesaurus.org/uat/1389"}]}, {"name": "Special relativity", "uri": "http://astrothesaurus.org/uat/1551", "children": [{"name": "Relativistic aberration", "uri": "http://astrothesaurus.org/uat/1385"}]}]}]}, {"name": "Cosmology", "uri": "http://astrothesaurus.org/uat/343", "children": [{"name": "Anthropic principle", "uri": "http://astrothesaurus.org/uat/48"}, {"name": "Astronomical radiation sources", "uri": "http://astrothesaurus.org/uat/89", "children": [{"name": "Compact radiation sources", "uri": "http://astrothesaurus.org/uat/289"}, {"name": "Cosmic rays", "uri": "http://astrothesaurus.org/uat/329", "children": [{"name": "Cosmic ray showers", "uri": "http://astrothesaurus.org/uat/327"}, {"name": "Cosmic ray sources", "uri": "http://astrothesaurus.org/uat/328"}, {"name": "Forbush effect", "uri": "http://astrothesaurus.org/uat/546"}, {"name": "Galactic cosmic rays", "uri": "http://astrothesaurus.org/uat/567"}, {"name": "High-energy cosmic radiation", "uri": "http://astrothesaurus.org/uat/731"}, {"name": "Secondary cosmic rays", "uri": "http://astrothesaurus.org/uat/1438"}, {"name": "Ultra-high-energy cosmic radiation", "uri": "http://astrothesaurus.org/uat/1733"}]}, {"name": "Extended radiation sources", "uri": "http://astrothesaurus.org/uat/504"}, {"name": "Extrasolar radiation", "uri": "http://astrothesaurus.org/uat/510"}, {"name": "Gamma-ray sources", "uri": "http://astrothesaurus.org/uat/633", "children": [{"name": "Gamma-ray bursts", "uri": "http://astrothesaurus.org/uat/629"}, {"name": "Gamma-ray transient sources", "uri": "http://astrothesaurus.org/uat/1853", "children": [{"name": "Gamma-ray bursters", "uri": "http://astrothesaurus.org/uat/1878"}]}, {"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}]}, {"name": "Hydroxyl sources", "uri": "http://astrothesaurus.org/uat/772"}, {"name": "Infrared sources", "uri": "http://astrothesaurus.org/uat/793"}, {"name": "Non-thermal radiation sources", "uri": "http://astrothesaurus.org/uat/1119"}, {"name": "Radio sources", "uri": "http://astrothesaurus.org/uat/1358", "children": [{"name": "Discrete radio sources", "uri": "http://astrothesaurus.org/uat/389"}, {"name": "Extragalactic radio sources", "uri": "http://astrothesaurus.org/uat/508"}, {"name": "Galactic radio sources", "uri": "http://astrothesaurus.org/uat/571"}, {"name": "Radio bursts", "uri": "http://astrothesaurus.org/uat/1339"}, {"name": "Radio continuum emission", "uri": "http://astrothesaurus.org/uat/1340"}, {"name": "Radio transient sources", "uri": "http://astrothesaurus.org/uat/2008"}]}, {"name": "Ultraviolet sources", "uri": "http://astrothesaurus.org/uat/1741", "children": [{"name": "Ultraviolet transient sources", "uri": "http://astrothesaurus.org/uat/1854"}]}, {"name": "Variable radiation sources", "uri": "http://astrothesaurus.org/uat/1759"}, {"name": "Visible sources", "uri": "http://astrothesaurus.org/uat/2108"}, {"name": "X-ray sources", "uri": "http://astrothesaurus.org/uat/1822", "children": [{"name": "Cool cores", "uri": "http://astrothesaurus.org/uat/302"}, {"name": "Diffuse x-ray background", "uri": "http://astrothesaurus.org/uat/384"}, {"name": "Ultraluminous x-ray sources", "uri": "http://astrothesaurus.org/uat/2164"}, {"name": "X-ray bursts", "uri": "http://astrothesaurus.org/uat/1814"}, {"name": "X-ray point sources", "uri": "http://astrothesaurus.org/uat/1270"}, {"name": "X-ray transient sources", "uri": "http://astrothesaurus.org/uat/1852", "children": [{"name": "X-ray bursters", "uri": "http://astrothesaurus.org/uat/1813"}]}]}]}, {"name": "Astrophysical dust processes", "uri": "http://astrothesaurus.org/uat/99", "children": [{"name": "Interstellar dust processes", "uri": "http://astrothesaurus.org/uat/838"}]}, {"name": "Bianchi cosmology", "uri": "http://astrothesaurus.org/uat/150"}, {"name": "Big Bang theory", "uri": "http://astrothesaurus.org/uat/152", "children": [{"name": "Big Bang nucleosynthesis", "uri": "http://astrothesaurus.org/uat/151"}, {"name": "Cosmological perturbation theory", "uri": "http://astrothesaurus.org/uat/341"}, {"name": "Hadron barrier", "uri": "http://astrothesaurus.org/uat/697"}, {"name": "Photon decoupling", "uri": "http://astrothesaurus.org/uat/1235"}, {"name": "Recombination (cosmology)", "uri": "http://astrothesaurus.org/uat/1365", "children": [{"name": "Cosmic background radiation", "uri": "http://astrothesaurus.org/uat/317", "children": [{"name": "Cosmic microwave background radiation", "uri": "http://astrothesaurus.org/uat/322", "children": [{"name": "Cosmic anisotropy", "uri": "http://astrothesaurus.org/uat/316"}, {"name": "Cosmic isotropy", "uri": "http://astrothesaurus.org/uat/320"}, {"name": "Sunyaev-Zeldovich effect", "uri": "http://astrothesaurus.org/uat/1654"}]}]}]}, {"name": "Reionization", "uri": "http://astrothesaurus.org/uat/1383"}]}, {"name": "Brane cosmology", "uri": "http://astrothesaurus.org/uat/179"}, {"name": "Cosmic inflation", "uri": "http://astrothesaurus.org/uat/319", "children": [{"name": "Alternatives to cosmic inflation", "uri": "http://astrothesaurus.org/uat/29"}, {"name": "E-folding time", "uri": "http://astrothesaurus.org/uat/425"}, {"name": "Gravitational waves", "uri": "http://astrothesaurus.org/uat/678", "children": [{"name": "Gravitational wave sources", "uri": "http://astrothesaurus.org/uat/677"}, {"name": "pp waves", "uri": "http://astrothesaurus.org/uat/1288"}]}]}, {"name": "Cosmochemistry", "uri": "http://astrothesaurus.org/uat/331", "children": [{"name": "Cosmochronology", "uri": "http://astrothesaurus.org/uat/332"}]}, {"name": "Cosmogony", "uri": "http://astrothesaurus.org/uat/333"}, {"name": "Cosmological evolution", "uri": "http://astrothesaurus.org/uat/336", "children": [{"name": "Dynamical evolution", "uri": "http://astrothesaurus.org/uat/421"}, {"name": "Galaxy evolution", "uri": "http://astrothesaurus.org/uat/594", "children": [{"name": "Galaxy chemical evolution", "uri": "http://astrothesaurus.org/uat/580", "children": [{"name": "Chemical enrichment", "uri": "http://astrothesaurus.org/uat/225"}]}, {"name": "Galaxy quenching", "uri": "http://astrothesaurus.org/uat/2040"}]}, {"name": "Orbital evolution", "uri": "http://astrothesaurus.org/uat/1178"}]}, {"name": "Cosmological models", "uri": "http://astrothesaurus.org/uat/337", "children": [{"name": "Closed universe", "uri": "http://astrothesaurus.org/uat/256"}, {"name": "Dirac cosmology", "uri": "http://astrothesaurus.org/uat/385"}, {"name": "Einstein universe", "uri": "http://astrothesaurus.org/uat/452"}, {"name": "Expanding universe", "uri": "http://astrothesaurus.org/uat/502"}, {"name": "Friedmann universe", "uri": "http://astrothesaurus.org/uat/551"}, {"name": "Geocentric model", "uri": "http://astrothesaurus.org/uat/2361"}, {"name": "G\u00f6del universe", "uri": "http://astrothesaurus.org/uat/657"}, {"name": "Heliocentric model", "uri": "http://astrothesaurus.org/uat/2362"}, {"name": "Inflationary universe", "uri": "http://astrothesaurus.org/uat/784"}, {"name": "Lemaitre universe", "uri": "http://astrothesaurus.org/uat/914"}, {"name": "Newtonian cosmology", "uri": "http://astrothesaurus.org/uat/1109"}, {"name": "Open universe", "uri": "http://astrothesaurus.org/uat/1161"}, {"name": "Oscillating universe", "uri": "http://astrothesaurus.org/uat/1188"}, {"name": "de Sitter universe", "uri": "http://astrothesaurus.org/uat/361"}]}, {"name": "Cosmological parameters", "uri": "http://astrothesaurus.org/uat/339", "children": [{"name": "Cosmological parameters from large-scale structure", "uri": "http://astrothesaurus.org/uat/340"}, {"name": "Curved space", "uri": "http://astrothesaurus.org/uat/345"}, {"name": "Dark energy", "uri": "http://astrothesaurus.org/uat/351", "children": [{"name": "Cosmological constant", "uri": "http://astrothesaurus.org/uat/334", "children": [{"name": "Cosmological constant experiments", "uri": "http://astrothesaurus.org/uat/335"}]}, {"name": "Quintessence", "uri": "http://astrothesaurus.org/uat/1323"}]}, {"name": "Deceleration parameter", "uri": "http://astrothesaurus.org/uat/364", "children": [{"name": "Accelerating universe", "uri": "http://astrothesaurus.org/uat/12"}]}, {"name": "Density parameters", "uri": "http://astrothesaurus.org/uat/372", "children": [{"name": "Baryon density", "uri": "http://astrothesaurus.org/uat/139"}, {"name": "Dark matter density", "uri": "http://astrothesaurus.org/uat/354"}, {"name": "Lambda density", "uri": "http://astrothesaurus.org/uat/898"}, {"name": "Matter density", "uri": "http://astrothesaurus.org/uat/1014"}]}, {"name": "Flat space", "uri": "http://astrothesaurus.org/uat/543"}, {"name": "Hubble constant", "uri": "http://astrothesaurus.org/uat/758"}, {"name": "Hubble time", "uri": "http://astrothesaurus.org/uat/762"}, {"name": "Sigma8", "uri": "http://astrothesaurus.org/uat/1455"}]}, {"name": "Cosmological phase transitions", "uri": "http://astrothesaurus.org/uat/342"}, {"name": "Cosmological principle", "uri": "http://astrothesaurus.org/uat/2363"}, {"name": "Hierarchical cosmology", "uri": "http://astrothesaurus.org/uat/730"}, {"name": "Large-scale structure of the universe", "uri": "http://astrothesaurus.org/uat/902", "children": [{"name": "Cosmic web", "uri": "http://astrothesaurus.org/uat/330", "children": [{"name": "Galaxy cluster counts", "uri": "http://astrothesaurus.org/uat/583"}, {"name": "Voids", "uri": "http://astrothesaurus.org/uat/1779"}]}, {"name": "Dark matter distribution", "uri": "http://astrothesaurus.org/uat/356"}, {"name": "Great Attractor", "uri": "http://astrothesaurus.org/uat/682"}, {"name": "Isothermal sphere profile", "uri": "http://astrothesaurus.org/uat/866"}, {"name": "Low-density fields", "uri": "http://astrothesaurus.org/uat/938"}, {"name": "Mean matter density", "uri": "http://astrothesaurus.org/uat/1020"}, {"name": "Voids", "uri": "http://astrothesaurus.org/uat/1779"}, {"name": "Warm-hot intergalactic medium", "uri": "http://astrothesaurus.org/uat/1786"}]}, {"name": "Non-Gaussianity", "uri": "http://astrothesaurus.org/uat/1116"}, {"name": "Observational cosmology", "uri": "http://astrothesaurus.org/uat/1146", "children": [{"name": "Cosmological constant", "uri": "http://astrothesaurus.org/uat/334", "children": [{"name": "Cosmological constant experiments", "uri": "http://astrothesaurus.org/uat/335"}]}, {"name": "Hubble constant", "uri": "http://astrothesaurus.org/uat/758"}]}, {"name": "Origin of the universe", "uri": "http://astrothesaurus.org/uat/1186", "children": [{"name": "Big Bang theory", "uri": "http://astrothesaurus.org/uat/152", "children": [{"name": "Big Bang nucleosynthesis", "uri": "http://astrothesaurus.org/uat/151"}, {"name": "Cosmological perturbation theory", "uri": "http://astrothesaurus.org/uat/341"}, {"name": "Hadron barrier", "uri": "http://astrothesaurus.org/uat/697"}, {"name": "Photon decoupling", "uri": "http://astrothesaurus.org/uat/1235"}, {"name": "Recombination (cosmology)", "uri": "http://astrothesaurus.org/uat/1365", "children": [{"name": "Cosmic background radiation", "uri": "http://astrothesaurus.org/uat/317", "children": [{"name": "Cosmic microwave background radiation", "uri": "http://astrothesaurus.org/uat/322", "children": [{"name": "Cosmic anisotropy", "uri": "http://astrothesaurus.org/uat/316"}, {"name": "Cosmic isotropy", "uri": "http://astrothesaurus.org/uat/320"}, {"name": "Sunyaev-Zeldovich effect", "uri": "http://astrothesaurus.org/uat/1654"}]}]}]}, {"name": "Reionization", "uri": "http://astrothesaurus.org/uat/1383"}]}, {"name": "Early universe", "uri": "http://astrothesaurus.org/uat/435", "children": [{"name": "Baryogenesis", "uri": "http://astrothesaurus.org/uat/137"}, {"name": "Baryon acoustic oscillations", "uri": "http://astrothesaurus.org/uat/138"}, {"name": "Inflationary universe", "uri": "http://astrothesaurus.org/uat/784"}, {"name": "Initial conditions of the universe", "uri": "http://astrothesaurus.org/uat/795"}, {"name": "Leptogenesis", "uri": "http://astrothesaurus.org/uat/916"}, {"name": "Neutrino decoupling", "uri": "http://astrothesaurus.org/uat/1101"}, {"name": "Photon decoupling", "uri": "http://astrothesaurus.org/uat/1235"}, {"name": "Primordial galaxies", "uri": "http://astrothesaurus.org/uat/1293"}, {"name": "Recombination (cosmology)", "uri": "http://astrothesaurus.org/uat/1365", "children": [{"name": "Cosmic background radiation", "uri": "http://astrothesaurus.org/uat/317", "children": [{"name": "Cosmic microwave background radiation", "uri": "http://astrothesaurus.org/uat/322", "children": [{"name": "Cosmic anisotropy", "uri": "http://astrothesaurus.org/uat/316"}, {"name": "Cosmic isotropy", "uri": "http://astrothesaurus.org/uat/320"}, {"name": "Sunyaev-Zeldovich effect", "uri": "http://astrothesaurus.org/uat/1654"}]}]}]}, {"name": "Reionization", "uri": "http://astrothesaurus.org/uat/1383"}]}, {"name": "Hubble-Lemaitre law", "uri": "http://astrothesaurus.org/uat/763", "children": [{"name": "Hubble diagram", "uri": "http://astrothesaurus.org/uat/759"}]}, {"name": "Steady-state theory", "uri": "http://astrothesaurus.org/uat/1574"}]}, {"name": "Plasma astrophysics", "uri": "http://astrothesaurus.org/uat/1261", "children": [{"name": "Cosmic electrodynamics", "uri": "http://astrothesaurus.org/uat/318"}, {"name": "Magnetohydrodynamics", "uri": "http://astrothesaurus.org/uat/1964"}, {"name": "Shocks", "uri": "http://astrothesaurus.org/uat/2086", "children": [{"name": "Interplanetary shocks", "uri": "http://astrothesaurus.org/uat/829"}, {"name": "Planetary bow shocks", "uri": "http://astrothesaurus.org/uat/1246"}, {"name": "Solar coronal mass ejection shocks", "uri": "http://astrothesaurus.org/uat/1997"}, {"name": "Stellar bow shocks", "uri": "http://astrothesaurus.org/uat/1586"}]}, {"name": "Space plasmas", "uri": "http://astrothesaurus.org/uat/1544", "children": [{"name": "Alfven waves", "uri": "http://astrothesaurus.org/uat/23"}]}]}, {"name": "Quantum cosmology", "uri": "http://astrothesaurus.org/uat/1313"}, {"name": "Radiative transfer", "uri": "http://astrothesaurus.org/uat/1335"}, {"name": "Redshifted", "uri": "http://astrothesaurus.org/uat/1379"}, {"name": "Relativistic cosmology", "uri": "http://astrothesaurus.org/uat/1387"}]}, {"name": "Exoplanet astronomy", "uri": "http://astrothesaurus.org/uat/486", "children": [{"name": "Exocomets", "uri": "http://astrothesaurus.org/uat/2368"}, {"name": "Exoplanet catalogs", "uri": "http://astrothesaurus.org/uat/488"}, {"name": "Exoplanet detection methods", "uri": "http://astrothesaurus.org/uat/489", "children": [{"name": "Astrometric exoplanet detection", "uri": "http://astrothesaurus.org/uat/2130"}, {"name": "Direct imaging", "uri": "http://astrothesaurus.org/uat/387", "children": [{"name": "Far infrared interferometry", "uri": "http://astrothesaurus.org/uat/528"}, {"name": "High contrast techniques", "uri": "http://astrothesaurus.org/uat/2369", "children": [{"name": "Coronagraphic imaging", "uri": "http://astrothesaurus.org/uat/313"}, {"name": "High contrast spectroscopy", "uri": "http://astrothesaurus.org/uat/2370"}]}]}, {"name": "Gravitational microlensing exoplanet detection", "uri": "http://astrothesaurus.org/uat/2147"}, {"name": "Magnetospheric radio emissions", "uri": "http://astrothesaurus.org/uat/998"}, {"name": "Polarimetry", "uri": "http://astrothesaurus.org/uat/1278", "children": [{"name": "Spectropolarimetry", "uri": "http://astrothesaurus.org/uat/1973"}]}, {"name": "Radial velocity", "uri": "http://astrothesaurus.org/uat/1332"}, {"name": "Timing variation methods", "uri": "http://astrothesaurus.org/uat/1703", "children": [{"name": "Eclipsing binary minima timing method", "uri": "http://astrothesaurus.org/uat/443"}, {"name": "Pulsar timing method", "uri": "http://astrothesaurus.org/uat/1305"}, {"name": "Pulsation frequency method", "uri": "http://astrothesaurus.org/uat/1308"}, {"name": "Transit duration variation method", "uri": "http://astrothesaurus.org/uat/1707"}, {"name": "Transit timing variation method", "uri": "http://astrothesaurus.org/uat/1710"}]}, {"name": "Transit photometry", "uri": "http://astrothesaurus.org/uat/1709"}]}, {"name": "Exoplanet dynamics", "uri": "http://astrothesaurus.org/uat/490", "children": [{"name": "Exoplanet tides", "uri": "http://astrothesaurus.org/uat/497"}, {"name": "Star-planet interactions", "uri": "http://astrothesaurus.org/uat/2177"}]}, {"name": "Exoplanet evolution", "uri": "http://astrothesaurus.org/uat/491"}, {"name": "Exoplanet formation", "uri": "http://astrothesaurus.org/uat/492"}, {"name": "Exoplanet migration", "uri": "http://astrothesaurus.org/uat/2205"}, {"name": "Exoplanet structure", "uri": "http://astrothesaurus.org/uat/495", "children": [{"name": "Exoplanet atmospheres", "uri": "http://astrothesaurus.org/uat/487", "children": [{"name": "Exoplanet atmospheric composition ", "uri": "http://astrothesaurus.org/uat/2021"}, {"name": "Exoplanet atmospheric dynamics", "uri": "http://astrothesaurus.org/uat/2307"}, {"name": "Exoplanet atmospheric evolution", "uri": "http://astrothesaurus.org/uat/2308"}, {"name": "Exoplanet atmospheric structure", "uri": "http://astrothesaurus.org/uat/2310"}, {"name": "Exoplanet atmospheric variability", "uri": "http://astrothesaurus.org/uat/2020"}]}, {"name": "Exoplanet plate tectonics", "uri": "http://astrothesaurus.org/uat/493"}, {"name": "Exoplanet rings", "uri": "http://astrothesaurus.org/uat/494"}, {"name": "Exoplanet surfaces", "uri": "http://astrothesaurus.org/uat/2118", "children": [{"name": "Exoplanet surface characteristics", "uri": "http://astrothesaurus.org/uat/496", "children": [{"name": "Exoplanet surface composition", "uri": "http://astrothesaurus.org/uat/2022"}, {"name": "Exoplanet surface variability", "uri": "http://astrothesaurus.org/uat/2023"}]}]}]}, {"name": "Exoplanet systems", "uri": "http://astrothesaurus.org/uat/484"}, {"name": "Exoplanets", "uri": "http://astrothesaurus.org/uat/498", "children": [{"name": "Carbon planets", "uri": "http://astrothesaurus.org/uat/198"}, {"name": "Chthonian planets", "uri": "http://astrothesaurus.org/uat/231"}, {"name": "Cold Neptunes", "uri": "http://astrothesaurus.org/uat/2132"}, {"name": "Extrasolar gaseous planets", "uri": "http://astrothesaurus.org/uat/2172", "children": [{"name": "Extrasolar gaseous giant planets", "uri": "http://astrothesaurus.org/uat/509"}]}, {"name": "Extrasolar ice giants", "uri": "http://astrothesaurus.org/uat/2024"}, {"name": "Extrasolar rocky planets", "uri": "http://astrothesaurus.org/uat/511"}, {"name": "Free floating planets", "uri": "http://astrothesaurus.org/uat/549"}, {"name": "Habitable planets", "uri": "http://astrothesaurus.org/uat/695"}, {"name": "Hot Jupiters", "uri": "http://astrothesaurus.org/uat/753"}, {"name": "Hot Neptunes", "uri": "http://astrothesaurus.org/uat/754"}, {"name": "Mini Neptunes", "uri": "http://astrothesaurus.org/uat/1063"}, {"name": "Ocean planets", "uri": "http://astrothesaurus.org/uat/1151"}, {"name": "Pulsar planets", "uri": "http://astrothesaurus.org/uat/1304"}, {"name": "Super Earths", "uri": "http://astrothesaurus.org/uat/1655"}, {"name": "Trojan planets", "uri": "http://astrothesaurus.org/uat/1716"}]}, {"name": "Natural satellites (Extrasolar)", "uri": "http://astrothesaurus.org/uat/483", "children": [{"name": "Irregular natural satellites (Extrasolar)", "uri": "http://astrothesaurus.org/uat/2025"}]}, {"name": "Planet hosting stars", "uri": "http://astrothesaurus.org/uat/1242", "children": [{"name": "Habitable zone", "uri": "http://astrothesaurus.org/uat/696"}]}]}, {"name": "Galactic and extragalactic astronomy", "uri": "http://astrothesaurus.org/uat/563", "children": [{"name": "Extragalactic astronomy", "uri": "http://astrothesaurus.org/uat/506", "children": [{"name": "Astrophysical masers", "uri": "http://astrothesaurus.org/uat/103", "children": [{"name": "Hydroxyl masers", "uri": "http://astrothesaurus.org/uat/771"}, {"name": "Megamasers", "uri": "http://astrothesaurus.org/uat/1023"}, {"name": "Silicon monoxide masers", "uri": "http://astrothesaurus.org/uat/1458"}, {"name": "Water masers", "uri": "http://astrothesaurus.org/uat/1790"}]}, {"name": "Circumgalactic medium", "uri": "http://astrothesaurus.org/uat/1879"}, {"name": "Extragalactic magnetic fields", "uri": "http://astrothesaurus.org/uat/507"}, {"name": "Galaxy environments", "uri": "http://astrothesaurus.org/uat/2029"}, {"name": "Intergalactic medium", "uri": "http://astrothesaurus.org/uat/813", "children": [{"name": "Dark matter", "uri": "http://astrothesaurus.org/uat/353", "children": [{"name": "Baryonic dark matter", "uri": "http://astrothesaurus.org/uat/140"}, {"name": "Cold dark matter", "uri": "http://astrothesaurus.org/uat/265"}, {"name": "Hot dark matter", "uri": "http://astrothesaurus.org/uat/750"}, {"name": "Warm dark matter", "uri": "http://astrothesaurus.org/uat/1787"}]}, {"name": "Intergalactic clouds", "uri": "http://astrothesaurus.org/uat/809", "children": [{"name": "Damped Lyman-alpha systems", "uri": "http://astrothesaurus.org/uat/349"}, {"name": "Intergalactic dust clouds", "uri": "http://astrothesaurus.org/uat/810"}, {"name": "Lyman limit systems", "uri": "http://astrothesaurus.org/uat/981"}, {"name": "Lyman-alpha forest clouds", "uri": "http://astrothesaurus.org/uat/977"}, {"name": "Metal line absorbers", "uri": "http://astrothesaurus.org/uat/1032"}]}, {"name": "Intergalactic filaments", "uri": "http://astrothesaurus.org/uat/811"}, {"name": "Intergalactic gas", "uri": "http://astrothesaurus.org/uat/812"}, {"name": "Intergalactic medium phases", "uri": "http://astrothesaurus.org/uat/814", "children": [{"name": "Cool intergalactic medium", "uri": "http://astrothesaurus.org/uat/303", "children": [{"name": "Cooling flows", "uri": "http://astrothesaurus.org/uat/2028"}]}, {"name": "Hot intergalactic medium", "uri": "http://astrothesaurus.org/uat/751"}, {"name": "Warm-hot intergalactic medium", "uri": "http://astrothesaurus.org/uat/1786"}]}, {"name": "Missing mass", "uri": "http://astrothesaurus.org/uat/1068"}, {"name": "Quasar absorption line spectroscopy", "uri": "http://astrothesaurus.org/uat/1317"}, {"name": "Voids", "uri": "http://astrothesaurus.org/uat/1779"}]}]}, {"name": "Galaxies", "uri": "http://astrothesaurus.org/uat/573", "children": [{"name": "Active galaxies", "uri": "http://astrothesaurus.org/uat/17", "children": [{"name": "AGN host galaxies", "uri": "http://astrothesaurus.org/uat/2017"}, {"name": "Active galactic nuclei", "uri": "http://astrothesaurus.org/uat/16", "children": [{"name": "Blazars", "uri": "http://astrothesaurus.org/uat/164", "children": [{"name": "Flat-spectrum radio quasars", "uri": "http://astrothesaurus.org/uat/2163"}]}, {"name": "High-luminosity active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2034"}, {"name": "Low-luminosity active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2033"}, {"name": "Quasars", "uri": "http://astrothesaurus.org/uat/1319", "children": [{"name": "Broad-absorption line quasar", "uri": "http://astrothesaurus.org/uat/183"}, {"name": "Double quasars", "uri": "http://astrothesaurus.org/uat/406"}, {"name": "Quasar-galaxy pairs", "uri": "http://astrothesaurus.org/uat/1316"}, {"name": "Radio loud quasars", "uri": "http://astrothesaurus.org/uat/1349"}, {"name": "Radio quiet quasars", "uri": "http://astrothesaurus.org/uat/1354"}, {"name": "X-ray quasars", "uri": "http://astrothesaurus.org/uat/1821"}]}, {"name": "Radio active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2134"}, {"name": "Radio cores", "uri": "http://astrothesaurus.org/uat/1341"}, {"name": "Radio hot spots", "uri": "http://astrothesaurus.org/uat/1344"}, {"name": "Radio jets", "uri": "http://astrothesaurus.org/uat/1347", "children": [{"name": "Polar jets", "uri": "http://astrothesaurus.org/uat/1274"}, {"name": "Relativistic jets", "uri": "http://astrothesaurus.org/uat/1390"}]}, {"name": "Radio lobes", "uri": "http://astrothesaurus.org/uat/1348"}, {"name": "Radio plumes", "uri": "http://astrothesaurus.org/uat/1352"}, {"name": "Relativistic disks", "uri": "http://astrothesaurus.org/uat/1388"}, {"name": "X-ray active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2035"}]}, {"name": "BL Lacertae objects", "uri": "http://astrothesaurus.org/uat/158"}, {"name": "Blazars", "uri": "http://astrothesaurus.org/uat/164", "children": [{"name": "Flat-spectrum radio quasars", "uri": "http://astrothesaurus.org/uat/2163"}]}, {"name": "Haro galaxies", "uri": "http://astrothesaurus.org/uat/701"}, {"name": "LINER galaxies", "uri": "http://astrothesaurus.org/uat/925"}, {"name": "Markarian galaxies", "uri": "http://astrothesaurus.org/uat/1006"}, {"name": "Radio galaxies", "uri": "http://astrothesaurus.org/uat/1343", "children": [{"name": "Fanaroff-Riley radio galaxies", "uri": "http://astrothesaurus.org/uat/526"}, {"name": "Giant radio galaxies", "uri": "http://astrothesaurus.org/uat/654"}, {"name": "Tailed radio galaxies", "uri": "http://astrothesaurus.org/uat/1682"}]}, {"name": "Starburst galaxies", "uri": "http://astrothesaurus.org/uat/1570", "children": [{"name": "Infrared galaxies", "uri": "http://astrothesaurus.org/uat/790", "children": [{"name": "Luminous infrared galaxies", "uri": "http://astrothesaurus.org/uat/946"}, {"name": "Ultraluminous infrared galaxies", "uri": "http://astrothesaurus.org/uat/1735"}]}]}]}, {"name": "Compact galaxies", "uri": "http://astrothesaurus.org/uat/285", "children": [{"name": "N galaxies", "uri": "http://astrothesaurus.org/uat/1084"}]}, {"name": "Companion galaxies", "uri": "http://astrothesaurus.org/uat/290"}, {"name": "Disk galaxies", "uri": "http://astrothesaurus.org/uat/391", "children": [{"name": "Lenticular galaxies", "uri": "http://astrothesaurus.org/uat/915"}, {"name": "Ring galaxies", "uri": "http://astrothesaurus.org/uat/1400"}, {"name": "Spiral galaxies", "uri": "http://astrothesaurus.org/uat/1560", "children": [{"name": "Andromeda Galaxy", "uri": "http://astrothesaurus.org/uat/39"}, {"name": "Barred spiral galaxies", "uri": "http://astrothesaurus.org/uat/136", "children": [{"name": "Galaxy bars", "uri": "http://astrothesaurus.org/uat/2364"}]}, {"name": "Milky Way Galaxy", "uri": "http://astrothesaurus.org/uat/1054"}, {"name": "Triangulum Galaxy", "uri": "http://astrothesaurus.org/uat/1712"}, {"name": "Unbarred spiral galaxies", "uri": "http://astrothesaurus.org/uat/1745"}]}]}, {"name": "Double galaxies", "uri": "http://astrothesaurus.org/uat/405", "children": [{"name": "Dumbbell galaxies", "uri": "http://astrothesaurus.org/uat/411"}]}, {"name": "Dwarf galaxies", "uri": "http://astrothesaurus.org/uat/416", "children": [{"name": "Compact dwarf galaxies", "uri": "http://astrothesaurus.org/uat/281", "children": [{"name": "Blue compact dwarf galaxies", "uri": "http://astrothesaurus.org/uat/165"}, {"name": "Ultracompact dwarf galaxies", "uri": "http://astrothesaurus.org/uat/1734"}]}, {"name": "Draco dwarf galaxy", "uri": "http://astrothesaurus.org/uat/408"}, {"name": "Dwarf elliptical galaxies", "uri": "http://astrothesaurus.org/uat/415", "children": [{"name": "Sculptor dwarf elliptical galaxy", "uri": "http://astrothesaurus.org/uat/1436"}]}, {"name": "Dwarf irregular galaxies", "uri": "http://astrothesaurus.org/uat/417"}, {"name": "Dwarf spheroidal galaxies", "uri": "http://astrothesaurus.org/uat/420", "children": [{"name": "Fornax dwarf spheroidal galaxy", "uri": "http://astrothesaurus.org/uat/548"}, {"name": "Sagittarius dwarf spheroidal galaxy", "uri": "http://astrothesaurus.org/uat/1423"}, {"name": "Ursa Minor dwarf spheroidal galaxy", "uri": "http://astrothesaurus.org/uat/1753"}]}, {"name": "Nucleated dwarf galaxies", "uri": "http://astrothesaurus.org/uat/1130"}]}, {"name": "Early-type galaxies", "uri": "http://astrothesaurus.org/uat/429", "children": [{"name": "E+A galaxies", "uri": "http://astrothesaurus.org/uat/424"}]}, {"name": "Elliptical galaxies", "uri": "http://astrothesaurus.org/uat/456", "children": [{"name": "D galaxies", "uri": "http://astrothesaurus.org/uat/346", "children": [{"name": "cD galaxies", "uri": "http://astrothesaurus.org/uat/209"}]}, {"name": "Giant elliptical galaxies", "uri": "http://astrothesaurus.org/uat/651"}]}, {"name": "Emission line galaxies", "uri": "http://astrothesaurus.org/uat/459", "children": [{"name": "LINER galaxies", "uri": "http://astrothesaurus.org/uat/925"}, {"name": "Markarian galaxies", "uri": "http://astrothesaurus.org/uat/1006"}, {"name": "Seyfert galaxies", "uri": "http://astrothesaurus.org/uat/1447"}]}, {"name": "Field galaxies", "uri": "http://astrothesaurus.org/uat/533"}, {"name": "Giant galaxies", "uri": "http://astrothesaurus.org/uat/652", "children": [{"name": "Brightest cluster galaxies", "uri": "http://astrothesaurus.org/uat/181"}, {"name": "Giant elliptical galaxies", "uri": "http://astrothesaurus.org/uat/651"}, {"name": "cD galaxies", "uri": "http://astrothesaurus.org/uat/209"}]}, {"name": "High-redshift galaxies", "uri": "http://astrothesaurus.org/uat/734"}, {"name": "High-velocity stars", "uri": "http://astrothesaurus.org/uat/736", "children": [{"name": "Halo stars", "uri": "http://astrothesaurus.org/uat/699"}, {"name": "Hypervelocity stars", "uri": "http://astrothesaurus.org/uat/776"}, {"name": "Runaway stars", "uri": "http://astrothesaurus.org/uat/1417"}]}, {"name": "Infrared excess galaxies", "uri": "http://astrothesaurus.org/uat/789"}, {"name": "Interacting galaxies", "uri": "http://astrothesaurus.org/uat/802", "children": [{"name": "Galaxy collisions", "uri": "http://astrothesaurus.org/uat/585"}, {"name": "Galaxy mergers", "uri": "http://astrothesaurus.org/uat/608"}, {"name": "Galaxy pairs", "uri": "http://astrothesaurus.org/uat/610"}, {"name": "Galaxy tides", "uri": "http://astrothesaurus.org/uat/623"}, {"name": "Galaxy triplets", "uri": "http://astrothesaurus.org/uat/624"}]}, {"name": "Irregular galaxies", "uri": "http://astrothesaurus.org/uat/864", "children": [{"name": "Amorphous irregular galaxies", "uri": "http://astrothesaurus.org/uat/37"}, {"name": "Dwarf irregular galaxies", "uri": "http://astrothesaurus.org/uat/417"}, {"name": "Magellanic irregular galaxies", "uri": "http://astrothesaurus.org/uat/1877", "children": [{"name": "Small Magellanic Cloud", "uri": "http://astrothesaurus.org/uat/1468"}]}]}, {"name": "Late-type galaxies", "uri": "http://astrothesaurus.org/uat/907"}, {"name": "Low surface brightness galaxies", "uri": "http://astrothesaurus.org/uat/940", "children": [{"name": "L galaxies", "uri": "http://astrothesaurus.org/uat/895"}]}, {"name": "Lyman-alpha galaxies", "uri": "http://astrothesaurus.org/uat/978"}, {"name": "Lyman-break galaxies", "uri": "http://astrothesaurus.org/uat/979"}, {"name": "Post-starburst galaxies", "uri": "http://astrothesaurus.org/uat/2176", "children": [{"name": "E+A galaxies", "uri": "http://astrothesaurus.org/uat/424"}]}, {"name": "Primordial galaxies", "uri": "http://astrothesaurus.org/uat/1293"}, {"name": "Protogalaxies", "uri": "http://astrothesaurus.org/uat/1298"}, {"name": "Quasar-galaxy pairs", "uri": "http://astrothesaurus.org/uat/1316"}, {"name": "Quenched galaxies", "uri": "http://astrothesaurus.org/uat/2016"}, {"name": "Radio jets", "uri": "http://astrothesaurus.org/uat/1347", "children": [{"name": "Polar jets", "uri": "http://astrothesaurus.org/uat/1274"}, {"name": "Relativistic jets", "uri": "http://astrothesaurus.org/uat/1390"}]}, {"name": "Starburst galaxies", "uri": "http://astrothesaurus.org/uat/1570", "children": [{"name": "Infrared galaxies", "uri": "http://astrothesaurus.org/uat/790", "children": [{"name": "Luminous infrared galaxies", "uri": "http://astrothesaurus.org/uat/946"}, {"name": "Ultraluminous infrared galaxies", "uri": "http://astrothesaurus.org/uat/1735"}]}]}]}, {"name": "Galaxy clusters", "uri": "http://astrothesaurus.org/uat/584", "children": [{"name": "Abell clusters", "uri": "http://astrothesaurus.org/uat/9"}, {"name": "Bautz-Morgan type", "uri": "http://astrothesaurus.org/uat/141"}, {"name": "Coma Cluster", "uri": "http://astrothesaurus.org/uat/270"}, {"name": "High-redshift galaxy clusters", "uri": "http://astrothesaurus.org/uat/2007"}, {"name": "Intracluster medium", "uri": "http://astrothesaurus.org/uat/858", "children": [{"name": "Cooling flows", "uri": "http://astrothesaurus.org/uat/2028"}]}, {"name": "Perseus Cluster", "uri": "http://astrothesaurus.org/uat/1214"}, {"name": "Poor galaxy clusters", "uri": "http://astrothesaurus.org/uat/2006"}, {"name": "Rich galaxy clusters", "uri": "http://astrothesaurus.org/uat/2005"}, {"name": "Superclusters", "uri": "http://astrothesaurus.org/uat/1657", "children": [{"name": "Virgo Supercluster", "uri": "http://astrothesaurus.org/uat/1773"}]}, {"name": "Virgo Cluster", "uri": "http://astrothesaurus.org/uat/1772"}]}, {"name": "Galaxy groups", "uri": "http://astrothesaurus.org/uat/597", "children": [{"name": "Hickson compact group", "uri": "http://astrothesaurus.org/uat/729"}, {"name": "Local Group", "uri": "http://astrothesaurus.org/uat/929", "children": [{"name": "Andromeda Galaxy", "uri": "http://astrothesaurus.org/uat/39"}, {"name": "Magellanic Clouds", "uri": "http://astrothesaurus.org/uat/990", "children": [{"name": "Large Magellanic Cloud", "uri": "http://astrothesaurus.org/uat/903"}, {"name": "Magellanic Stream", "uri": "http://astrothesaurus.org/uat/991"}, {"name": "Small Magellanic Cloud", "uri": "http://astrothesaurus.org/uat/1468"}]}, {"name": "Milky Way Galaxy", "uri": "http://astrothesaurus.org/uat/1054"}, {"name": "Triangulum Galaxy", "uri": "http://astrothesaurus.org/uat/1712"}]}]}, {"name": "Galaxy physics", "uri": "http://astrothesaurus.org/uat/612", "children": [{"name": "Galaxy abundances", "uri": "http://astrothesaurus.org/uat/574"}, {"name": "Galaxy accretion disks", "uri": "http://astrothesaurus.org/uat/562"}, {"name": "Galaxy cluster counts", "uri": "http://astrothesaurus.org/uat/583"}, {"name": "Galaxy distances", "uri": "http://astrothesaurus.org/uat/590", "children": [{"name": "Holmberg radius", "uri": "http://astrothesaurus.org/uat/743"}, {"name": "Hubble radius", "uri": "http://astrothesaurus.org/uat/760"}]}, {"name": "Galaxy dynamics", "uri": "http://astrothesaurus.org/uat/591"}, {"name": "Galaxy encounters", "uri": "http://astrothesaurus.org/uat/592"}, {"name": "Galaxy formation", "uri": "http://astrothesaurus.org/uat/595", "children": [{"name": "Density wave model", "uri": "http://astrothesaurus.org/uat/373"}, {"name": "Stellar feedback", "uri": "http://astrothesaurus.org/uat/1602"}]}, {"name": "Galaxy interactions", "uri": "http://astrothesaurus.org/uat/600", "children": [{"name": "Galaxy mergers", "uri": "http://astrothesaurus.org/uat/608"}]}, {"name": "Galaxy processes", "uri": "http://astrothesaurus.org/uat/614", "children": [{"name": "Galaxy accretion", "uri": "http://astrothesaurus.org/uat/575", "children": [{"name": "Galaxy infall", "uri": "http://astrothesaurus.org/uat/599"}]}, {"name": "Galaxy dynamics", "uri": "http://astrothesaurus.org/uat/591"}, {"name": "Galaxy evolution", "uri": "http://astrothesaurus.org/uat/594", "children": [{"name": "Galaxy chemical evolution", "uri": "http://astrothesaurus.org/uat/580", "children": [{"name": "Chemical enrichment", "uri": "http://astrothesaurus.org/uat/225"}]}, {"name": "Galaxy quenching", "uri": "http://astrothesaurus.org/uat/2040"}]}, {"name": "Galaxy fountains", "uri": "http://astrothesaurus.org/uat/596"}, {"name": "Galaxy kinematics", "uri": "http://astrothesaurus.org/uat/602", "children": [{"name": "Galaxy anticenters", "uri": "http://astrothesaurus.org/uat/577"}, {"name": "Galaxy equators", "uri": "http://astrothesaurus.org/uat/593"}, {"name": "Galaxy planes", "uri": "http://astrothesaurus.org/uat/613"}, {"name": "Galaxy rotation", "uri": "http://astrothesaurus.org/uat/618", "children": [{"name": "Galaxy rotation curves", "uri": "http://astrothesaurus.org/uat/619"}, {"name": "Oort constants", "uri": "http://astrothesaurus.org/uat/1159"}]}]}, {"name": "Galaxy winds", "uri": "http://astrothesaurus.org/uat/626"}]}, {"name": "Galaxy properties", "uri": "http://astrothesaurus.org/uat/615", "children": [{"name": "Galaxy abundances", "uri": "http://astrothesaurus.org/uat/574"}, {"name": "Galaxy ages", "uri": "http://astrothesaurus.org/uat/576"}, {"name": "Galaxy colors", "uri": "http://astrothesaurus.org/uat/586", "children": [{"name": "Blue cloud galaxies", "uri": "http://astrothesaurus.org/uat/166"}, {"name": "Green valley galaxies", "uri": "http://astrothesaurus.org/uat/683"}, {"name": "Red sequence galaxies", "uri": "http://astrothesaurus.org/uat/1373"}]}, {"name": "Galaxy fountains", "uri": "http://astrothesaurus.org/uat/596"}, {"name": "Galaxy jets", "uri": "http://astrothesaurus.org/uat/601"}, {"name": "Galaxy luminosities", "uri": "http://astrothesaurus.org/uat/603"}, {"name": "Galaxy magnetic fields", "uri": "http://astrothesaurus.org/uat/604"}, {"name": "Galaxy magnitudes", "uri": "http://astrothesaurus.org/uat/605"}, {"name": "Galaxy masses", "uri": "http://astrothesaurus.org/uat/607", "children": [{"name": "Galaxy mass distribution", "uri": "http://astrothesaurus.org/uat/606", "children": [{"name": "Navarro-Frenk-White profile", "uri": "http://astrothesaurus.org/uat/1091"}]}]}, {"name": "Galaxy radial velocities", "uri": "http://astrothesaurus.org/uat/616"}, {"name": "Galaxy radii", "uri": "http://astrothesaurus.org/uat/617"}, {"name": "Galaxy stellar content", "uri": "http://astrothesaurus.org/uat/621"}, {"name": "Scaling relations", "uri": "http://astrothesaurus.org/uat/2031"}]}, {"name": "Galaxy spurs", "uri": "http://astrothesaurus.org/uat/620"}, {"name": "Galaxy structure", "uri": "http://astrothesaurus.org/uat/622", "children": [{"name": "Circumgalactic medium", "uri": "http://astrothesaurus.org/uat/1879"}, {"name": "Galaxy bulges", "uri": "http://astrothesaurus.org/uat/578"}, {"name": "Galaxy dark matter halos", "uri": "http://astrothesaurus.org/uat/1880"}, {"name": "Galaxy disks", "uri": "http://astrothesaurus.org/uat/589", "children": [{"name": "Galaxy stellar disks", "uri": "http://astrothesaurus.org/uat/1594"}]}, {"name": "Galaxy nuclei", "uri": "http://astrothesaurus.org/uat/609", "children": [{"name": "Active galactic nuclei", "uri": "http://astrothesaurus.org/uat/16", "children": [{"name": "Blazars", "uri": "http://astrothesaurus.org/uat/164", "children": [{"name": "Flat-spectrum radio quasars", "uri": "http://astrothesaurus.org/uat/2163"}]}, {"name": "High-luminosity active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2034"}, {"name": "Low-luminosity active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2033"}, {"name": "Quasars", "uri": "http://astrothesaurus.org/uat/1319", "children": [{"name": "Broad-absorption line quasar", "uri": "http://astrothesaurus.org/uat/183"}, {"name": "Double quasars", "uri": "http://astrothesaurus.org/uat/406"}, {"name": "Quasar-galaxy pairs", "uri": "http://astrothesaurus.org/uat/1316"}, {"name": "Radio loud quasars", "uri": "http://astrothesaurus.org/uat/1349"}, {"name": "Radio quiet quasars", "uri": "http://astrothesaurus.org/uat/1354"}, {"name": "X-ray quasars", "uri": "http://astrothesaurus.org/uat/1821"}]}, {"name": "Radio active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2134"}, {"name": "Radio cores", "uri": "http://astrothesaurus.org/uat/1341"}, {"name": "Radio hot spots", "uri": "http://astrothesaurus.org/uat/1344"}, {"name": "Radio jets", "uri": "http://astrothesaurus.org/uat/1347", "children": [{"name": "Polar jets", "uri": "http://astrothesaurus.org/uat/1274"}, {"name": "Relativistic jets", "uri": "http://astrothesaurus.org/uat/1390"}]}, {"name": "Radio lobes", "uri": "http://astrothesaurus.org/uat/1348"}, {"name": "Radio plumes", "uri": "http://astrothesaurus.org/uat/1352"}, {"name": "Relativistic disks", "uri": "http://astrothesaurus.org/uat/1388"}, {"name": "X-ray active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2035"}]}, {"name": "Galaxy circumnuclear disk", "uri": "http://astrothesaurus.org/uat/581"}]}, {"name": "Galaxy spheroids", "uri": "http://astrothesaurus.org/uat/2032"}, {"name": "Galaxy stellar halos", "uri": "http://astrothesaurus.org/uat/598", "children": [{"name": "Stellar rings", "uri": "http://astrothesaurus.org/uat/1628"}]}, {"name": "Galaxy tails", "uri": "http://astrothesaurus.org/uat/2125", "children": [{"name": "Ram pressure stripped tails", "uri": "http://astrothesaurus.org/uat/2126"}, {"name": "Tidal tails", "uri": "http://astrothesaurus.org/uat/1701"}]}, {"name": "Radio cores", "uri": "http://astrothesaurus.org/uat/1341"}, {"name": "Spiral arms", "uri": "http://astrothesaurus.org/uat/1559"}, {"name": "Spiral pitch angle", "uri": "http://astrothesaurus.org/uat/1561"}, {"name": "Stellar streams", "uri": "http://astrothesaurus.org/uat/2166"}]}, {"name": "Milky Way Galaxy physics", "uri": "http://astrothesaurus.org/uat/1056", "children": [{"name": "Galactic abundances", "uri": "http://astrothesaurus.org/uat/2002"}, {"name": "Galactic anticenter", "uri": "http://astrothesaurus.org/uat/564"}, {"name": "Galactic archaeology", "uri": "http://astrothesaurus.org/uat/2178"}, {"name": "Galactic bar", "uri": "http://astrothesaurus.org/uat/2365"}, {"name": "Galactic bulge", "uri": "http://astrothesaurus.org/uat/2041"}, {"name": "Galactic center", "uri": "http://astrothesaurus.org/uat/565"}, {"name": "Galactic winds", "uri": "http://astrothesaurus.org/uat/572"}, {"name": "Gould Belt", "uri": "http://astrothesaurus.org/uat/658"}, {"name": "Milky Way Galaxy fountains", "uri": "http://astrothesaurus.org/uat/1055"}, {"name": "Milky Way dark matter halo", "uri": "http://astrothesaurus.org/uat/1049"}, {"name": "Milky Way disk", "uri": "http://astrothesaurus.org/uat/1050"}, {"name": "Milky Way dynamics", "uri": "http://astrothesaurus.org/uat/1051"}, {"name": "Milky Way evolution", "uri": "http://astrothesaurus.org/uat/1052"}, {"name": "Milky Way formation", "uri": "http://astrothesaurus.org/uat/1053"}, {"name": "Milky Way magnetic fields", "uri": "http://astrothesaurus.org/uat/1057"}, {"name": "Milky Way mass", "uri": "http://astrothesaurus.org/uat/1058"}, {"name": "Milky Way rotation", "uri": "http://astrothesaurus.org/uat/1059"}, {"name": "Milky Way stellar halo", "uri": "http://astrothesaurus.org/uat/1060"}, {"name": "Solar neighborhood", "uri": "http://astrothesaurus.org/uat/1509"}]}, {"name": "Stellar kinematics", "uri": "http://astrothesaurus.org/uat/1608", "children": [{"name": "Stellar motion", "uri": "http://astrothesaurus.org/uat/1615", "children": [{"name": "Proper motions", "uri": "http://astrothesaurus.org/uat/1295"}]}]}, {"name": "Voids", "uri": "http://astrothesaurus.org/uat/1779"}]}]}, {"name": "High energy astrophysics", "uri": "http://astrothesaurus.org/uat/739", "children": [{"name": "Active galactic nuclei", "uri": "http://astrothesaurus.org/uat/16", "children": [{"name": "Blazars", "uri": "http://astrothesaurus.org/uat/164", "children": [{"name": "Flat-spectrum radio quasars", "uri": "http://astrothesaurus.org/uat/2163"}]}, {"name": "High-luminosity active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2034"}, {"name": "Low-luminosity active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2033"}, {"name": "Quasars", "uri": "http://astrothesaurus.org/uat/1319", "children": [{"name": "Broad-absorption line quasar", "uri": "http://astrothesaurus.org/uat/183"}, {"name": "Double quasars", "uri": "http://astrothesaurus.org/uat/406"}, {"name": "Quasar-galaxy pairs", "uri": "http://astrothesaurus.org/uat/1316"}, {"name": "Radio loud quasars", "uri": "http://astrothesaurus.org/uat/1349"}, {"name": "Radio quiet quasars", "uri": "http://astrothesaurus.org/uat/1354"}, {"name": "X-ray quasars", "uri": "http://astrothesaurus.org/uat/1821"}]}, {"name": "Radio active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2134"}, {"name": "Radio cores", "uri": "http://astrothesaurus.org/uat/1341"}, {"name": "Radio hot spots", "uri": "http://astrothesaurus.org/uat/1344"}, {"name": "Radio jets", "uri": "http://astrothesaurus.org/uat/1347", "children": [{"name": "Polar jets", "uri": "http://astrothesaurus.org/uat/1274"}, {"name": "Relativistic jets", "uri": "http://astrothesaurus.org/uat/1390"}]}, {"name": "Radio lobes", "uri": "http://astrothesaurus.org/uat/1348"}, {"name": "Radio plumes", "uri": "http://astrothesaurus.org/uat/1352"}, {"name": "Relativistic disks", "uri": "http://astrothesaurus.org/uat/1388"}, {"name": "X-ray active galactic nuclei", "uri": "http://astrothesaurus.org/uat/2035"}]}, {"name": "Black hole physics", "uri": "http://astrothesaurus.org/uat/159", "children": [{"name": "Bekenstein-Hawking entropy", "uri": "http://astrothesaurus.org/uat/145"}, {"name": "Black hole spin-flip", "uri": "http://astrothesaurus.org/uat/160"}, {"name": "Black hole thermodynamics", "uri": "http://astrothesaurus.org/uat/161"}, {"name": "Ergosphere", "uri": "http://astrothesaurus.org/uat/472"}, {"name": "Event horizons", "uri": "http://astrothesaurus.org/uat/479"}, {"name": "Hawking radiation", "uri": "http://astrothesaurus.org/uat/703"}, {"name": "Kruskal diagram", "uri": "http://astrothesaurus.org/uat/892"}, {"name": "M-sigma relation", "uri": "http://astrothesaurus.org/uat/2026"}, {"name": "Penrose process", "uri": "http://astrothesaurus.org/uat/1204"}, {"name": "Photon sphere", "uri": "http://astrothesaurus.org/uat/1236"}, {"name": "Quasinormal modes", "uri": "http://astrothesaurus.org/uat/1320"}, {"name": "Trans-Planckian physics", "uri": "http://astrothesaurus.org/uat/1706"}]}, {"name": "Black holes", "uri": "http://astrothesaurus.org/uat/162", "children": [{"name": "Astrophysical black holes", "uri": "http://astrothesaurus.org/uat/98", "children": [{"name": "Intermediate-mass black holes", "uri": "http://astrothesaurus.org/uat/816"}, {"name": "Primordial black holes", "uri": "http://astrothesaurus.org/uat/1292"}, {"name": "Stellar mass black holes", "uri": "http://astrothesaurus.org/uat/1611"}, {"name": "Supermassive black holes", "uri": "http://astrothesaurus.org/uat/1663", "children": [{"name": "Quasars", "uri": "http://astrothesaurus.org/uat/1319", "children": [{"name": "Broad-absorption line quasar", "uri": "http://astrothesaurus.org/uat/183"}, {"name": "Double quasars", "uri": "http://astrothesaurus.org/uat/406"}, {"name": "Quasar-galaxy pairs", "uri": "http://astrothesaurus.org/uat/1316"}, {"name": "Radio loud quasars", "uri": "http://astrothesaurus.org/uat/1349"}, {"name": "Radio quiet quasars", "uri": "http://astrothesaurus.org/uat/1354"}, {"name": "X-ray quasars", "uri": "http://astrothesaurus.org/uat/1821"}]}]}]}, {"name": "Classical black holes", "uri": "http://astrothesaurus.org/uat/249", "children": [{"name": "Charged black holes", "uri": "http://astrothesaurus.org/uat/223", "children": [{"name": "Kerr-Newman black holes", "uri": "http://astrothesaurus.org/uat/885"}, {"name": "Reissner-Nordstr\u00f6m black holes", "uri": "http://astrothesaurus.org/uat/1384"}]}, {"name": "Nonrotating black holes", "uri": "http://astrothesaurus.org/uat/1121", "children": [{"name": "Reissner-Nordstr\u00f6m black holes", "uri": "http://astrothesaurus.org/uat/1384"}, {"name": "Schwarzschild black holes", "uri": "http://astrothesaurus.org/uat/1433"}]}, {"name": "Rotating black holes", "uri": "http://astrothesaurus.org/uat/1406", "children": [{"name": "Kerr black holes", "uri": "http://astrothesaurus.org/uat/886", "children": [{"name": "Maximal Kerr black holes", "uri": "http://astrothesaurus.org/uat/1016"}]}, {"name": "Kerr-Newman black holes", "uri": "http://astrothesaurus.org/uat/885"}]}, {"name": "Uncharged black holes", "uri": "http://astrothesaurus.org/uat/1746", "children": [{"name": "Kerr black holes", "uri": "http://astrothesaurus.org/uat/886", "children": [{"name": "Maximal Kerr black holes", "uri": "http://astrothesaurus.org/uat/1016"}]}, {"name": "Schwarzschild black holes", "uri": "http://astrothesaurus.org/uat/1433"}]}]}]}, {"name": "Burst astrophysics", "uri": "http://astrothesaurus.org/uat/187", "children": [{"name": "Gamma-ray bursts", "uri": "http://astrothesaurus.org/uat/629"}, {"name": "Optical bursts", "uri": "http://astrothesaurus.org/uat/1164"}, {"name": "Radio bursts", "uri": "http://astrothesaurus.org/uat/1339"}, {"name": "Rapid bursts", "uri": "http://astrothesaurus.org/uat/1362"}, {"name": "X-ray bursts", "uri": "http://astrothesaurus.org/uat/1814"}]}, {"name": "Dark matter", "uri": "http://astrothesaurus.org/uat/353", "children": [{"name": "Baryonic dark matter", "uri": "http://astrothesaurus.org/uat/140"}, {"name": "Cold dark matter", "uri": "http://astrothesaurus.org/uat/265"}, {"name": "Hot dark matter", "uri": "http://astrothesaurus.org/uat/750"}, {"name": "Warm dark matter", "uri": "http://astrothesaurus.org/uat/1787"}]}, {"name": "Intracluster medium", "uri": "http://astrothesaurus.org/uat/858", "children": [{"name": "Cooling flows", "uri": "http://astrothesaurus.org/uat/2028"}]}, {"name": "Jets", "uri": "http://astrothesaurus.org/uat/870", "children": [{"name": "Galaxy jets", "uri": "http://astrothesaurus.org/uat/601"}, {"name": "Plasma jets", "uri": "http://astrothesaurus.org/uat/1263"}, {"name": "Radio jets", "uri": "http://astrothesaurus.org/uat/1347", "children": [{"name": "Polar jets", "uri": "http://astrothesaurus.org/uat/1274"}, {"name": "Relativistic jets", "uri": "http://astrothesaurus.org/uat/1390"}]}, {"name": "Stellar jets", "uri": "http://astrothesaurus.org/uat/1607"}]}, {"name": "Neutrino astronomy", "uri": "http://astrothesaurus.org/uat/1100", "children": [{"name": "Neutrino masses", "uri": "http://astrothesaurus.org/uat/1102"}, {"name": "Solar neutrino problem", "uri": "http://astrothesaurus.org/uat/1510"}, {"name": "Urca process", "uri": "http://astrothesaurus.org/uat/1752"}]}, {"name": "Particle astrophysics", "uri": "http://astrothesaurus.org/uat/96", "children": [{"name": "Cosmic rays", "uri": "http://astrothesaurus.org/uat/329", "children": [{"name": "Cosmic ray showers", "uri": "http://astrothesaurus.org/uat/327"}, {"name": "Cosmic ray sources", "uri": "http://astrothesaurus.org/uat/328"}, {"name": "Forbush effect", "uri": "http://astrothesaurus.org/uat/546"}, {"name": "Galactic cosmic rays", "uri": "http://astrothesaurus.org/uat/567"}, {"name": "High-energy cosmic radiation", "uri": "http://astrothesaurus.org/uat/731"}, {"name": "Secondary cosmic rays", "uri": "http://astrothesaurus.org/uat/1438"}, {"name": "Ultra-high-energy cosmic radiation", "uri": "http://astrothesaurus.org/uat/1733"}]}, {"name": "Cosmological neutrinos", "uri": "http://astrothesaurus.org/uat/338"}, {"name": "Gamma-rays", "uri": "http://astrothesaurus.org/uat/637", "children": [{"name": "Gamma-ray lines", "uri": "http://astrothesaurus.org/uat/631"}, {"name": "Gamma-ray sources", "uri": "http://astrothesaurus.org/uat/633", "children": [{"name": "Gamma-ray bursts", "uri": "http://astrothesaurus.org/uat/629"}, {"name": "Gamma-ray transient sources", "uri": "http://astrothesaurus.org/uat/1853", "children": [{"name": "Gamma-ray bursters", "uri": "http://astrothesaurus.org/uat/1878"}]}, {"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}]}]}, {"name": "Gravitational waves", "uri": "http://astrothesaurus.org/uat/678", "children": [{"name": "Gravitational wave sources", "uri": "http://astrothesaurus.org/uat/677"}, {"name": "pp waves", "uri": "http://astrothesaurus.org/uat/1288"}]}, {"name": "Neutrino oscillations", "uri": "http://astrothesaurus.org/uat/1104"}, {"name": "Solar neutrinos", "uri": "http://astrothesaurus.org/uat/1511"}, {"name": "Supernova neutrinos", "uri": "http://astrothesaurus.org/uat/1666"}, {"name": "Urca process", "uri": "http://astrothesaurus.org/uat/1752"}]}, {"name": "Plasma astrophysics", "uri": "http://astrothesaurus.org/uat/1261", "children": [{"name": "Cosmic electrodynamics", "uri": "http://astrothesaurus.org/uat/318"}, {"name": "Magnetohydrodynamics", "uri": "http://astrothesaurus.org/uat/1964"}, {"name": "Shocks", "uri": "http://astrothesaurus.org/uat/2086", "children": [{"name": "Interplanetary shocks", "uri": "http://astrothesaurus.org/uat/829"}, {"name": "Planetary bow shocks", "uri": "http://astrothesaurus.org/uat/1246"}, {"name": "Solar coronal mass ejection shocks", "uri": "http://astrothesaurus.org/uat/1997"}, {"name": "Stellar bow shocks", "uri": "http://astrothesaurus.org/uat/1586"}]}, {"name": "Space plasmas", "uri": "http://astrothesaurus.org/uat/1544", "children": [{"name": "Alfven waves", "uri": "http://astrothesaurus.org/uat/23"}]}]}, {"name": "Relativistic binary stars", "uri": "http://astrothesaurus.org/uat/1386"}, {"name": "Seyfert galaxies", "uri": "http://astrothesaurus.org/uat/1447"}, {"name": "Transient sources", "uri": "http://astrothesaurus.org/uat/1851", "children": [{"name": "Gamma-ray transient sources", "uri": "http://astrothesaurus.org/uat/1853", "children": [{"name": "Gamma-ray bursters", "uri": "http://astrothesaurus.org/uat/1878"}]}, {"name": "Radio transient sources", "uri": "http://astrothesaurus.org/uat/2008"}, {"name": "Ultraviolet transient sources", "uri": "http://astrothesaurus.org/uat/1854"}, {"name": "X-ray transient sources", "uri": "http://astrothesaurus.org/uat/1852", "children": [{"name": "X-ray bursters", "uri": "http://astrothesaurus.org/uat/1813"}]}]}, {"name": "Warm-hot intergalactic medium", "uri": "http://astrothesaurus.org/uat/1786"}]}, {"name": "Interdisciplinary astronomy", "uri": "http://astrothesaurus.org/uat/804", "children": [{"name": "Astrobiology", "uri": "http://astrothesaurus.org/uat/74", "children": [{"name": "Biosignatures", "uri": "http://astrothesaurus.org/uat/2018"}, {"name": "Search for extraterrestrial intelligence", "uri": "http://astrothesaurus.org/uat/2127", "children": [{"name": "Technosignatures", "uri": "http://astrothesaurus.org/uat/2128"}]}, {"name": "Xenobiology", "uri": "http://astrothesaurus.org/uat/1826"}]}, {"name": "Astrochemistry", "uri": "http://astrothesaurus.org/uat/75", "children": [{"name": "CII region", "uri": "http://astrothesaurus.org/uat/232"}, {"name": "Chemical abundances", "uri": "http://astrothesaurus.org/uat/224", "children": [{"name": "Abundance ratios", "uri": "http://astrothesaurus.org/uat/11"}, {"name": "Cosmic abundances", "uri": "http://astrothesaurus.org/uat/315"}, {"name": "Frozen in elements", "uri": "http://astrothesaurus.org/uat/552"}, {"name": "Galactic abundances", "uri": "http://astrothesaurus.org/uat/2002"}, {"name": "Galaxy abundances", "uri": "http://astrothesaurus.org/uat/574"}, {"name": "Intergalactic abundances", "uri": "http://astrothesaurus.org/uat/2003"}, {"name": "Interstellar abundances", "uri": "http://astrothesaurus.org/uat/832"}, {"name": "Isotopic abundances", "uri": "http://astrothesaurus.org/uat/867"}, {"name": "Metallicity", "uri": "http://astrothesaurus.org/uat/1031"}, {"name": "Nuclear abundances", "uri": "http://astrothesaurus.org/uat/1128"}, {"name": "Overabundances", "uri": "http://astrothesaurus.org/uat/1192"}, {"name": "Solar abundances", "uri": "http://astrothesaurus.org/uat/1474"}, {"name": "Stellar abundances", "uri": "http://astrothesaurus.org/uat/1577"}, {"name": "Underabundances", "uri": "http://astrothesaurus.org/uat/1747"}]}, {"name": "Cosmochemistry", "uri": "http://astrothesaurus.org/uat/331", "children": [{"name": "Cosmochronology", "uri": "http://astrothesaurus.org/uat/332"}]}, {"name": "Diffuse interstellar bands", "uri": "http://astrothesaurus.org/uat/379"}, {"name": "Polycyclic aromatic hydrocarbons", "uri": "http://astrothesaurus.org/uat/1280"}, {"name": "Pre-biotic astrochemistry", "uri": "http://astrothesaurus.org/uat/2079"}, {"name": "Reaction catalysts", "uri": "http://astrothesaurus.org/uat/2080"}, {"name": "Reaction rates", "uri": "http://astrothesaurus.org/uat/2081"}, {"name": "Spectral line lists", "uri": "http://astrothesaurus.org/uat/2082"}]}, {"name": "Astroinformatics", "uri": "http://astrothesaurus.org/uat/78"}, {"name": "Astronomy education", "uri": "http://astrothesaurus.org/uat/2165"}, {"name": "Astrophysical fluid dynamics", "uri": "http://astrothesaurus.org/uat/101", "children": [{"name": "Hydrodynamics", "uri": "http://astrothesaurus.org/uat/1963"}, {"name": "Internal waves", "uri": "http://astrothesaurus.org/uat/819"}, {"name": "Magnetohydrodynamics", "uri": "http://astrothesaurus.org/uat/1964"}, {"name": "Radiative magnetohydrodynamics", "uri": "http://astrothesaurus.org/uat/2009"}]}, {"name": "Astrostatistics", "uri": "http://astrothesaurus.org/uat/1882", "children": [{"name": "Algorithms", "uri": "http://astrothesaurus.org/uat/1883", "children": [{"name": "Expectation-Maximization Algorithm", "uri": "http://astrothesaurus.org/uat/1888"}, {"name": "Markov chain Monte Carlo", "uri": "http://astrothesaurus.org/uat/1889", "children": [{"name": "Affine invariant", "uri": "http://astrothesaurus.org/uat/1890"}, {"name": "Gibbs Sampler", "uri": "http://astrothesaurus.org/uat/1891"}, {"name": "Importance sampling", "uri": "http://astrothesaurus.org/uat/1892"}, {"name": "Metropolis-Hastings", "uri": "http://astrothesaurus.org/uat/1893"}, {"name": "Nested sampling", "uri": "http://astrothesaurus.org/uat/1894"}]}]}, {"name": "Astrostatistics distributions", "uri": "http://astrothesaurus.org/uat/1884", "children": [{"name": "Gamma distribution", "uri": "http://astrothesaurus.org/uat/1895"}, {"name": "Normal distribution", "uri": "http://astrothesaurus.org/uat/1896"}, {"name": "Pareto distribution", "uri": "http://astrothesaurus.org/uat/1897"}, {"name": "Poisson distribution", "uri": "http://astrothesaurus.org/uat/1898"}, {"name": "Sampling distribution", "uri": "http://astrothesaurus.org/uat/1899"}]}, {"name": "Astrostatistics strategies", "uri": "http://astrothesaurus.org/uat/1885", "children": [{"name": "Bayesian statistics", "uri": "http://astrothesaurus.org/uat/1900", "children": [{"name": "Bayes' Theorem", "uri": "http://astrothesaurus.org/uat/1924"}, {"name": "Hierarchical models", "uri": "http://astrothesaurus.org/uat/1925"}, {"name": "Posterior distribution", "uri": "http://astrothesaurus.org/uat/1926"}, {"name": "Prior distribution", "uri": "http://astrothesaurus.org/uat/1927"}]}, {"name": "Maximum likelihood estimation", "uri": "http://astrothesaurus.org/uat/1901"}, {"name": "Nonparametric hypothesis tests", "uri": "http://astrothesaurus.org/uat/1902", "children": [{"name": "Kolmogorov-Smirnov test", "uri": "http://astrothesaurus.org/uat/1928"}]}, {"name": "Nonparametric inference", "uri": "http://astrothesaurus.org/uat/1903", "children": [{"name": "Smoothing", "uri": "http://astrothesaurus.org/uat/1929", "children": [{"name": "Gaussian Processes regression", "uri": "http://astrothesaurus.org/uat/1930"}]}]}, {"name": "Parametric hypothesis tests", "uri": "http://astrothesaurus.org/uat/1904", "children": [{"name": "F test", "uri": "http://astrothesaurus.org/uat/1931"}]}, {"name": "Survival analysis", "uri": "http://astrothesaurus.org/uat/1905"}]}, {"name": "Astrostatistics techniques", "uri": "http://astrothesaurus.org/uat/1886", "children": [{"name": "Bootstrap", "uri": "http://astrothesaurus.org/uat/1906"}, {"name": "Classification", "uri": "http://astrothesaurus.org/uat/1907", "children": [{"name": "Mixture model", "uri": "http://astrothesaurus.org/uat/1932", "children": [{"name": "Gaussian mixture model", "uri": "http://astrothesaurus.org/uat/1937"}]}, {"name": "Neural networks", "uri": "http://astrothesaurus.org/uat/1933", "children": [{"name": "Convolutional neural networks", "uri": "http://astrothesaurus.org/uat/1938"}]}, {"name": "Outlier detection", "uri": "http://astrothesaurus.org/uat/1934"}, {"name": "Random Forests", "uri": "http://astrothesaurus.org/uat/1935"}, {"name": "Support vector machine", "uri": "http://astrothesaurus.org/uat/1936"}]}, {"name": "Clustering", "uri": "http://astrothesaurus.org/uat/1908", "children": [{"name": "Single-linkage hierarchical clustering", "uri": "http://astrothesaurus.org/uat/1939"}]}, {"name": "Cross-validation ", "uri": "http://astrothesaurus.org/uat/1909"}, {"name": "Deconvolution", "uri": "http://astrothesaurus.org/uat/1910"}, {"name": "Detection", "uri": "http://astrothesaurus.org/uat/1911"}, {"name": "Model selection", "uri": "http://astrothesaurus.org/uat/1912", "children": [{"name": "Akaike information criterion", "uri": "http://astrothesaurus.org/uat/1940"}, {"name": "Bayesian information criterion", "uri": "http://astrothesaurus.org/uat/1920"}, {"name": "Likelihood ratio test", "uri": "http://astrothesaurus.org/uat/1942"}]}, {"name": "Multivariate analysis", "uri": "http://astrothesaurus.org/uat/1913", "children": [{"name": "Dimensionality reduction", "uri": "http://astrothesaurus.org/uat/1943"}, {"name": "Principal component analysis", "uri": "http://astrothesaurus.org/uat/1944"}]}, {"name": "Regression", "uri": "http://astrothesaurus.org/uat/1914", "children": [{"name": "Linear regression", "uri": "http://astrothesaurus.org/uat/1945"}, {"name": "Measurement error model", "uri": "http://astrothesaurus.org/uat/1946"}, {"name": "Minimum chi-squared", "uri": "http://astrothesaurus.org/uat/1947"}, {"name": "Nonlinear regression", "uri": "http://astrothesaurus.org/uat/1948"}, {"name": "Robust regression", "uri": "http://astrothesaurus.org/uat/1949"}]}, {"name": "Spatial point processes", "uri": "http://astrothesaurus.org/uat/1915", "children": [{"name": "Minimum spanning tree", "uri": "http://astrothesaurus.org/uat/1950"}, {"name": "Smoothing", "uri": "http://astrothesaurus.org/uat/1929", "children": [{"name": "Gaussian Processes regression", "uri": "http://astrothesaurus.org/uat/1930"}]}, {"name": "Two-point correlation function", "uri": "http://astrothesaurus.org/uat/1951"}, {"name": "Voronoi tessellation", "uri": "http://astrothesaurus.org/uat/1952"}]}, {"name": "Time series analysis", "uri": "http://astrothesaurus.org/uat/1916", "children": [{"name": "Irregular cadence", "uri": "http://astrothesaurus.org/uat/1953"}, {"name": "Light curve classification ", "uri": "http://astrothesaurus.org/uat/1954"}, {"name": "Period search ", "uri": "http://astrothesaurus.org/uat/1955", "children": [{"name": "Fast Fourier transform", "uri": "http://astrothesaurus.org/uat/1958"}, {"name": "Lomb-Scargle periodogram", "uri": "http://astrothesaurus.org/uat/1959"}, {"name": "Phase dispersion minimization", "uri": "http://astrothesaurus.org/uat/1960"}]}, {"name": "Red noise", "uri": "http://astrothesaurus.org/uat/1956"}, {"name": "Transient detection", "uri": "http://astrothesaurus.org/uat/1957"}]}, {"name": "Uncertainty bounds", "uri": "http://astrothesaurus.org/uat/1917", "children": [{"name": "Bootstrap", "uri": "http://astrothesaurus.org/uat/1906"}, {"name": "Confidence interval", "uri": "http://astrothesaurus.org/uat/1961"}, {"name": "Credible region", "uri": "http://astrothesaurus.org/uat/1962"}]}, {"name": "Wavelet analysis", "uri": "http://astrothesaurus.org/uat/1918"}]}, {"name": "Astrostatistics tools", "uri": "http://astrothesaurus.org/uat/1887", "children": [{"name": "Bayes factor", "uri": "http://astrothesaurus.org/uat/1919"}, {"name": "Bayesian information criterion", "uri": "http://astrothesaurus.org/uat/1920"}, {"name": "Chi-squared statistic", "uri": "http://astrothesaurus.org/uat/1921"}, {"name": "Fisher's Information", "uri": "http://astrothesaurus.org/uat/1922"}, {"name": "Kullback-Leibler distance", "uri": "http://astrothesaurus.org/uat/1923"}]}]}, {"name": "Computational astronomy", "uri": "http://astrothesaurus.org/uat/293", "children": [{"name": "Astronomy data analysis", "uri": "http://astrothesaurus.org/uat/1858", "children": [{"name": "Astronomy data acquisition", "uri": "http://astrothesaurus.org/uat/1860"}, {"name": "Astronomy data modeling", "uri": "http://astrothesaurus.org/uat/1859"}, {"name": "Astronomy data reduction", "uri": "http://astrothesaurus.org/uat/1861"}, {"name": "Astronomy data sonification", "uri": "http://astrothesaurus.org/uat/2305"}, {"name": "Astronomy data visualization", "uri": "http://astrothesaurus.org/uat/1968"}, {"name": "Astronomy databases", "uri": "http://astrothesaurus.org/uat/83"}, {"name": "Astronomy image processing", "uri": "http://astrothesaurus.org/uat/2306"}]}, {"name": "Astronomy software", "uri": "http://astrothesaurus.org/uat/1855", "children": [{"name": "Astronomical simulations", "uri": "http://astrothesaurus.org/uat/1857", "children": [{"name": "Hydrodynamical simulations", "uri": "http://astrothesaurus.org/uat/767"}, {"name": "Magnetohydrodynamical simulations", "uri": "http://astrothesaurus.org/uat/1966"}, {"name": "N-body simulations", "uri": "http://astrothesaurus.org/uat/1083"}, {"name": "Radiative transfer simulations", "uri": "http://astrothesaurus.org/uat/1967"}]}, {"name": "Astronomy web services", "uri": "http://astrothesaurus.org/uat/1856", "children": [{"name": "Virtual observatories", "uri": "http://astrothesaurus.org/uat/1774"}]}, {"name": "Educational software", "uri": "http://astrothesaurus.org/uat/1870"}, {"name": "Software documentation", "uri": "http://astrothesaurus.org/uat/1869", "children": [{"name": "Software tutorials", "uri": "http://astrothesaurus.org/uat/1871"}]}, {"name": "Software licensing", "uri": "http://astrothesaurus.org/uat/1862", "children": [{"name": "Open source software", "uri": "http://astrothesaurus.org/uat/1866"}, {"name": "Private software", "uri": "http://astrothesaurus.org/uat/1867"}, {"name": "Public domain software", "uri": "http://astrothesaurus.org/uat/1863"}, {"name": "Publicly available software", "uri": "http://astrothesaurus.org/uat/1864"}, {"name": "Software available on request", "uri": "http://astrothesaurus.org/uat/1865"}]}]}, {"name": "Computational methods", "uri": "http://astrothesaurus.org/uat/1965", "children": [{"name": "Astronomy databases", "uri": "http://astrothesaurus.org/uat/83"}, {"name": "Cloud computing", "uri": "http://astrothesaurus.org/uat/1970"}, {"name": "Distributed computing", "uri": "http://astrothesaurus.org/uat/1971"}, {"name": "GPU computing", "uri": "http://astrothesaurus.org/uat/1969"}, {"name": "Markov chain Monte Carlo", "uri": "http://astrothesaurus.org/uat/1889", "children": [{"name": "Affine invariant", "uri": "http://astrothesaurus.org/uat/1890"}, {"name": "Gibbs Sampler", "uri": "http://astrothesaurus.org/uat/1891"}, {"name": "Importance sampling", "uri": "http://astrothesaurus.org/uat/1892"}, {"name": "Metropolis-Hastings", "uri": "http://astrothesaurus.org/uat/1893"}, {"name": "Nested sampling", "uri": "http://astrothesaurus.org/uat/1894"}]}]}]}, {"name": "Cultural astronomy", "uri": "http://astrothesaurus.org/uat/2366", "children": [{"name": "Archaeoastronomy", "uri": "http://astrothesaurus.org/uat/64", "children": [{"name": "Megalithic astronomy", "uri": "http://astrothesaurus.org/uat/1022"}]}, {"name": "Ethnoastronomy", "uri": "http://astrothesaurus.org/uat/477", "children": [{"name": "Indigenous astronomy", "uri": "http://astrothesaurus.org/uat/2367"}]}]}, {"name": "History of astronomy", "uri": "http://astrothesaurus.org/uat/1868"}, {"name": "Laboratory astrophysics", "uri": "http://astrothesaurus.org/uat/2004", "children": [{"name": "Atomic physics", "uri": "http://astrothesaurus.org/uat/2063", "children": [{"name": "Atomic data", "uri": "http://astrothesaurus.org/uat/2216"}, {"name": "Atomic data benchmarking", "uri": "http://astrothesaurus.org/uat/2064"}, {"name": "Atomic reactions", "uri": "http://astrothesaurus.org/uat/2217", "children": [{"name": "Ionization", "uri": "http://astrothesaurus.org/uat/2068", "children": [{"name": "Charge exchange ionization", "uri": "http://astrothesaurus.org/uat/2056"}, {"name": "Electron impact ionization", "uri": "http://astrothesaurus.org/uat/2059"}, {"name": "Photoionization", "uri": "http://astrothesaurus.org/uat/2060"}]}, {"name": "Recombination", "uri": "http://astrothesaurus.org/uat/2072", "children": [{"name": "Charge exchange recombination", "uri": "http://astrothesaurus.org/uat/2062"}, {"name": "Dielectronic recombination", "uri": "http://astrothesaurus.org/uat/2061"}, {"name": "Radiative recombination", "uri": "http://astrothesaurus.org/uat/2057"}, {"name": "Radical-radical recombination", "uri": "http://astrothesaurus.org/uat/1071"}]}]}, {"name": "Collision physics", "uri": "http://astrothesaurus.org/uat/2065", "children": [{"name": "Charge transfer", "uri": "http://astrothesaurus.org/uat/2218"}, {"name": "Electron impact excitation", "uri": "http://astrothesaurus.org/uat/2219"}, {"name": "Mutual neutralization", "uri": "http://astrothesaurus.org/uat/2220"}]}, {"name": "De-excitation rates", "uri": "http://astrothesaurus.org/uat/2066"}, {"name": "Excitation rates", "uri": "http://astrothesaurus.org/uat/2067"}, {"name": "Isotope shifts", "uri": "http://astrothesaurus.org/uat/2069"}, {"name": "Radiative processes", "uri": "http://astrothesaurus.org/uat/2055"}, {"name": "Spectral line identification", "uri": "http://astrothesaurus.org/uat/2073"}, {"name": "Transition probabilities", "uri": "http://astrothesaurus.org/uat/2074"}]}, {"name": "Experimental data", "uri": "http://astrothesaurus.org/uat/2371"}, {"name": "Experimental techniques", "uri": "http://astrothesaurus.org/uat/2078", "children": [{"name": "Ion trapping", "uri": "http://astrothesaurus.org/uat/2224"}, {"name": "Ion-storage rings", "uri": "http://astrothesaurus.org/uat/2225"}, {"name": "Mass spectrometry", "uri": "http://astrothesaurus.org/uat/2094", "children": [{"name": "Quadrupole mass spectrometry", "uri": "http://astrothesaurus.org/uat/2221"}, {"name": "Time-of-flight mass spectrometry", "uri": "http://astrothesaurus.org/uat/2222"}]}, {"name": "Molecular beams", "uri": "http://astrothesaurus.org/uat/2223", "children": [{"name": "Crossed-beams", "uri": "http://astrothesaurus.org/uat/2240"}, {"name": "Merged-beams", "uri": "http://astrothesaurus.org/uat/2241"}, {"name": "Supersonic expansion", "uri": "http://astrothesaurus.org/uat/2242"}]}, {"name": "Production techniques", "uri": "http://astrothesaurus.org/uat/2243", "children": [{"name": "Electric discharge", "uri": "http://astrothesaurus.org/uat/2244"}, {"name": "Laser ablation", "uri": "http://astrothesaurus.org/uat/2245"}, {"name": "Pyrolysis", "uri": "http://astrothesaurus.org/uat/2246"}]}, {"name": "Spectroscopy", "uri": "http://astrothesaurus.org/uat/1558", "children": [{"name": "Atomic spectroscopy", "uri": "http://astrothesaurus.org/uat/2099", "children": [{"name": "Collisional broadening", "uri": "http://astrothesaurus.org/uat/2083"}, {"name": "Line intensities", "uri": "http://astrothesaurus.org/uat/2084"}, {"name": "Line positions", "uri": "http://astrothesaurus.org/uat/2085"}]}, {"name": "Electronic spectroscopy", "uri": "http://astrothesaurus.org/uat/2247"}, {"name": "Galaxy spectroscopy", "uri": "http://astrothesaurus.org/uat/2171"}, {"name": "Gamma-ray spectroscopy", "uri": "http://astrothesaurus.org/uat/2283"}, {"name": "Ice spectroscopy", "uri": "http://astrothesaurus.org/uat/2250"}, {"name": "Infrared spectroscopy", "uri": "http://astrothesaurus.org/uat/2285"}, {"name": "Lyman alpha forest", "uri": "http://astrothesaurus.org/uat/980"}, {"name": "Molecular spectroscopy", "uri": "http://astrothesaurus.org/uat/2095", "children": [{"name": "Collisional broadening", "uri": "http://astrothesaurus.org/uat/2083"}, {"name": "High resolution spectroscopy", "uri": "http://astrothesaurus.org/uat/2096"}, {"name": "Line intensities", "uri": "http://astrothesaurus.org/uat/2084"}, {"name": "Line positions", "uri": "http://astrothesaurus.org/uat/2085"}, {"name": "Photoelectron spectroscopy", "uri": "http://astrothesaurus.org/uat/2097"}]}, {"name": "Radio spectroscopy", "uri": "http://astrothesaurus.org/uat/1359"}, {"name": "Rotational spectroscopy", "uri": "http://astrothesaurus.org/uat/2248", "children": [{"name": "Microwave spectroscopy", "uri": "http://astrothesaurus.org/uat/2251", "children": [{"name": "Cavity-enhanced Fourier-transform", "uri": "http://astrothesaurus.org/uat/2253"}, {"name": "Chirped-pulse Fourier-transform", "uri": "http://astrothesaurus.org/uat/2254"}, {"name": "Direct absorption", "uri": "http://astrothesaurus.org/uat/2255"}]}, {"name": "Millimeter-wave spectroscopy", "uri": "http://astrothesaurus.org/uat/2252", "children": [{"name": "Cavity-enhanced Fourier-transform", "uri": "http://astrothesaurus.org/uat/2253"}, {"name": "Chirped-pulse Fourier-transform", "uri": "http://astrothesaurus.org/uat/2254"}, {"name": "Direct absorption", "uri": "http://astrothesaurus.org/uat/2255"}]}]}, {"name": "Transmission spectroscopy", "uri": "http://astrothesaurus.org/uat/2133"}, {"name": "Ultraviolet spectroscopy", "uri": "http://astrothesaurus.org/uat/2284"}, {"name": "Vibrational spectroscopy", "uri": "http://astrothesaurus.org/uat/2249"}]}]}, {"name": "Molecular physics", "uri": "http://astrothesaurus.org/uat/2058", "children": [{"name": "Collision physics", "uri": "http://astrothesaurus.org/uat/2065", "children": [{"name": "Charge transfer", "uri": "http://astrothesaurus.org/uat/2218"}, {"name": "Electron impact excitation", "uri": "http://astrothesaurus.org/uat/2219"}, {"name": "Mutual neutralization", "uri": "http://astrothesaurus.org/uat/2220"}]}, {"name": "Complex organic molecules", "uri": "http://astrothesaurus.org/uat/2256"}, {"name": "De-excitation rates", "uri": "http://astrothesaurus.org/uat/2066"}, {"name": "Excitation rates", "uri": "http://astrothesaurus.org/uat/2067"}, {"name": "Fullerenes", "uri": "http://astrothesaurus.org/uat/2257"}, {"name": "Metal-containing molecules", "uri": "http://astrothesaurus.org/uat/2258"}, {"name": "Molecular data", "uri": "http://astrothesaurus.org/uat/2259", "children": [{"name": "Molecular spectroscopic constants", "uri": "http://astrothesaurus.org/uat/2260"}, {"name": "Molecular structural parameters", "uri": "http://astrothesaurus.org/uat/2261"}]}, {"name": "Molecular reactions", "uri": "http://astrothesaurus.org/uat/2226", "children": [{"name": "Electron recombination reactions", "uri": "http://astrothesaurus.org/uat/2262"}, {"name": "Ion-neutral reactions", "uri": "http://astrothesaurus.org/uat/2263"}, {"name": "Ionization", "uri": "http://astrothesaurus.org/uat/2068", "children": [{"name": "Charge exchange ionization", "uri": "http://astrothesaurus.org/uat/2056"}, {"name": "Electron impact ionization", "uri": "http://astrothesaurus.org/uat/2059"}, {"name": "Photoionization", "uri": "http://astrothesaurus.org/uat/2060"}]}, {"name": "Isomerization reactions", "uri": "http://astrothesaurus.org/uat/2264"}, {"name": "Neutral-neutral reactions", "uri": "http://astrothesaurus.org/uat/2265"}, {"name": "Photodissociation reactions", "uri": "http://astrothesaurus.org/uat/2266"}, {"name": "Radical-radical recombination", "uri": "http://astrothesaurus.org/uat/1071"}]}, {"name": "Polycyclic aromatic hydrocarbons", "uri": "http://astrothesaurus.org/uat/1280"}, {"name": "Radiative processes", "uri": "http://astrothesaurus.org/uat/2055"}, {"name": "Small molecules", "uri": "http://astrothesaurus.org/uat/2267"}, {"name": "Spectral line identification", "uri": "http://astrothesaurus.org/uat/2073"}]}, {"name": "Nuclear physics", "uri": "http://astrothesaurus.org/uat/2077", "children": [{"name": "Nuclear decay", "uri": "http://astrothesaurus.org/uat/2227"}, {"name": "Nuclear reaction cross sections", "uri": "http://astrothesaurus.org/uat/2087"}]}, {"name": "Particle physics", "uri": "http://astrothesaurus.org/uat/2088"}, {"name": "Plasma physics", "uri": "http://astrothesaurus.org/uat/2089"}, {"name": "Solid matter physics", "uri": "http://astrothesaurus.org/uat/2090", "children": [{"name": "Dust physics", "uri": "http://astrothesaurus.org/uat/2229", "children": [{"name": "Dust composition", "uri": "http://astrothesaurus.org/uat/2271"}, {"name": "Dust destruction", "uri": "http://astrothesaurus.org/uat/2268"}, {"name": "Dust formation", "uri": "http://astrothesaurus.org/uat/2269"}, {"name": "Optical constants (Dust)", "uri": "http://astrothesaurus.org/uat/2270"}]}, {"name": "Ice physics", "uri": "http://astrothesaurus.org/uat/2228", "children": [{"name": "Ice composition", "uri": "http://astrothesaurus.org/uat/2272"}, {"name": "Ice destruction", "uri": "http://astrothesaurus.org/uat/2091"}, {"name": "Ice formation", "uri": "http://astrothesaurus.org/uat/2092"}, {"name": "Ice phases", "uri": "http://astrothesaurus.org/uat/2273"}, {"name": "Ice porosity", "uri": "http://astrothesaurus.org/uat/2274"}, {"name": "Ice spectroscopy", "uri": "http://astrothesaurus.org/uat/2250"}, {"name": "Optical constants (Ice)", "uri": "http://astrothesaurus.org/uat/2275"}, {"name": "Physical properties (Ice)", "uri": "http://astrothesaurus.org/uat/2276"}, {"name": "Radiation interactions (Ice)", "uri": "http://astrothesaurus.org/uat/2277"}, {"name": "Thermal properties (Ice)", "uri": "http://astrothesaurus.org/uat/2278"}]}, {"name": "Mineral physics", "uri": "http://astrothesaurus.org/uat/2230"}]}, {"name": "Theoretical data", "uri": "http://astrothesaurus.org/uat/2372"}, {"name": "Theoretical models", "uri": "http://astrothesaurus.org/uat/2107"}, {"name": "Theoretical techniques", "uri": "http://astrothesaurus.org/uat/2093", "children": [{"name": "Quantum-chemical calculations", "uri": "http://astrothesaurus.org/uat/2232", "children": [{"name": "Chemical kinetics", "uri": "http://astrothesaurus.org/uat/2233"}, {"name": "Chemical thermodynamics", "uri": "http://astrothesaurus.org/uat/2236"}, {"name": "Potential energy surfaces", "uri": "http://astrothesaurus.org/uat/2234"}, {"name": "Structure determination", "uri": "http://astrothesaurus.org/uat/2235"}]}, {"name": "Reaction models", "uri": "http://astrothesaurus.org/uat/2231", "children": [{"name": "Chemical reaction network models", "uri": "http://astrothesaurus.org/uat/2237"}, {"name": "Monte Carlo methods", "uri": "http://astrothesaurus.org/uat/2238"}, {"name": "Reaction rate equations", "uri": "http://astrothesaurus.org/uat/2239"}]}]}]}, {"name": "Philosophy of astronomy", "uri": "http://astrothesaurus.org/uat/1222"}]}, {"name": "Interstellar medium", "uri": "http://astrothesaurus.org/uat/847", "children": [{"name": "Astrophysical masers", "uri": "http://astrothesaurus.org/uat/103", "children": [{"name": "Hydroxyl masers", "uri": "http://astrothesaurus.org/uat/771"}, {"name": "Megamasers", "uri": "http://astrothesaurus.org/uat/1023"}, {"name": "Silicon monoxide masers", "uri": "http://astrothesaurus.org/uat/1458"}, {"name": "Water masers", "uri": "http://astrothesaurus.org/uat/1790"}]}, {"name": "Intercloud medium", "uri": "http://astrothesaurus.org/uat/803"}, {"name": "Interstellar absorption", "uri": "http://astrothesaurus.org/uat/831", "children": [{"name": "Diffuse interstellar bands", "uri": "http://astrothesaurus.org/uat/379"}, {"name": "Interstellar dust extinction", "uri": "http://astrothesaurus.org/uat/837"}, {"name": "Interstellar line absorption", "uri": "http://astrothesaurus.org/uat/843"}]}, {"name": "Interstellar atomic gas", "uri": "http://astrothesaurus.org/uat/833"}, {"name": "Interstellar clouds", "uri": "http://astrothesaurus.org/uat/834", "children": [{"name": "Dark interstellar clouds", "uri": "http://astrothesaurus.org/uat/352", "children": [{"name": "Bok globules", "uri": "http://astrothesaurus.org/uat/171"}, {"name": "Cometary globules", "uri": "http://astrothesaurus.org/uat/276"}, {"name": "Infrared dark clouds", "uri": "http://astrothesaurus.org/uat/787"}]}, {"name": "Dense interstellar clouds", "uri": "http://astrothesaurus.org/uat/371"}, {"name": "Diffuse interstellar clouds", "uri": "http://astrothesaurus.org/uat/380"}, {"name": "Evaporating gaseous globules", "uri": "http://astrothesaurus.org/uat/478"}, {"name": "High-velocity clouds", "uri": "http://astrothesaurus.org/uat/735", "children": [{"name": "Magellanic Stream", "uri": "http://astrothesaurus.org/uat/991"}]}, {"name": "Interstellar dust", "uri": "http://astrothesaurus.org/uat/836", "children": [{"name": "Carbonaceous grains", "uri": "http://astrothesaurus.org/uat/201"}, {"name": "Polycyclic aromatic hydrocarbons", "uri": "http://astrothesaurus.org/uat/1280"}, {"name": "Silicate grains", "uri": "http://astrothesaurus.org/uat/1456"}, {"name": "Very small grains", "uri": "http://astrothesaurus.org/uat/1770"}]}, {"name": "Molecular clouds", "uri": "http://astrothesaurus.org/uat/1072", "children": [{"name": "Collapsing clouds", "uri": "http://astrothesaurus.org/uat/267"}, {"name": "Diffuse molecular clouds", "uri": "http://astrothesaurus.org/uat/381"}, {"name": "Giant molecular clouds", "uri": "http://astrothesaurus.org/uat/653"}, {"name": "Infrared dark clouds", "uri": "http://astrothesaurus.org/uat/787"}, {"name": "Photodissociation regions", "uri": "http://astrothesaurus.org/uat/1223"}]}, {"name": "Neutral hydrogen clouds", "uri": "http://astrothesaurus.org/uat/1099"}, {"name": "Plasma clouds", "uri": "http://astrothesaurus.org/uat/1262"}]}, {"name": "Interstellar dynamics", "uri": "http://astrothesaurus.org/uat/839"}, {"name": "Interstellar emissions", "uri": "http://astrothesaurus.org/uat/840", "children": [{"name": "Dust continuum emission", "uri": "http://astrothesaurus.org/uat/412"}, {"name": "Interstellar cyclotron emission", "uri": "http://astrothesaurus.org/uat/835"}, {"name": "Interstellar line emission", "uri": "http://astrothesaurus.org/uat/844", "children": [{"name": "CO line emission", "uri": "http://astrothesaurus.org/uat/262"}, {"name": "H I line emission", "uri": "http://astrothesaurus.org/uat/690"}]}, {"name": "Interstellar masers", "uri": "http://astrothesaurus.org/uat/846"}, {"name": "Interstellar synchrotron emission", "uri": "http://astrothesaurus.org/uat/856"}, {"name": "Interstellar thermal emission", "uri": "http://astrothesaurus.org/uat/857"}, {"name": "Radio continuum emission", "uri": "http://astrothesaurus.org/uat/1340"}]}, {"name": "Interstellar filaments", "uri": "http://astrothesaurus.org/uat/842"}, {"name": "Interstellar magnetic fields", "uri": "http://astrothesaurus.org/uat/845"}, {"name": "Interstellar molecules", "uri": "http://astrothesaurus.org/uat/849"}, {"name": "Interstellar phases", "uri": "http://astrothesaurus.org/uat/850", "children": [{"name": "Cold neutral medium", "uri": "http://astrothesaurus.org/uat/266"}, {"name": "Hot ionized medium", "uri": "http://astrothesaurus.org/uat/752"}, {"name": "Molecular gas", "uri": "http://astrothesaurus.org/uat/1073"}, {"name": "Warm ionized medium", "uri": "http://astrothesaurus.org/uat/1788"}, {"name": "Warm neutral medium", "uri": "http://astrothesaurus.org/uat/1789"}]}, {"name": "Interstellar plasma", "uri": "http://astrothesaurus.org/uat/851"}, {"name": "Interstellar radiation field", "uri": "http://astrothesaurus.org/uat/852"}, {"name": "Interstellar scattering", "uri": "http://astrothesaurus.org/uat/854", "children": [{"name": "Interstellar dust extinction", "uri": "http://astrothesaurus.org/uat/837"}]}, {"name": "Nebulae", "uri": "http://astrothesaurus.org/uat/1095", "children": [{"name": "Bipolar nebulae", "uri": "http://astrothesaurus.org/uat/155"}, {"name": "Bright nebulae", "uri": "http://astrothesaurus.org/uat/180"}, {"name": "Cometary nebulae", "uri": "http://astrothesaurus.org/uat/278"}, {"name": "Compact nebulae", "uri": "http://astrothesaurus.org/uat/287"}, {"name": "Dark interstellar clouds", "uri": "http://astrothesaurus.org/uat/352", "children": [{"name": "Bok globules", "uri": "http://astrothesaurus.org/uat/171"}, {"name": "Cometary globules", "uri": "http://astrothesaurus.org/uat/276"}, {"name": "Infrared dark clouds", "uri": "http://astrothesaurus.org/uat/787"}]}, {"name": "Diffuse nebulae", "uri": "http://astrothesaurus.org/uat/382"}, {"name": "Dust nebulae", "uri": "http://astrothesaurus.org/uat/413"}, {"name": "Emission nebulae", "uri": "http://astrothesaurus.org/uat/461", "children": [{"name": "H II regions", "uri": "http://astrothesaurus.org/uat/694", "children": [{"name": "Bok globules", "uri": "http://astrothesaurus.org/uat/171"}, {"name": "Compact H II region", "uri": "http://astrothesaurus.org/uat/286"}]}, {"name": "Planetary nebulae", "uri": "http://astrothesaurus.org/uat/1249", "children": [{"name": "Planetary nebulae nuclei", "uri": "http://astrothesaurus.org/uat/1250"}]}]}, {"name": "Filamentary nebulae", "uri": "http://astrothesaurus.org/uat/535"}, {"name": "Gaseous nebulae", "uri": "http://astrothesaurus.org/uat/639"}, {"name": "H I regions", "uri": "http://astrothesaurus.org/uat/693", "children": [{"name": "HI shells", "uri": "http://astrothesaurus.org/uat/728"}]}, {"name": "Pre-solar nebulae", "uri": "http://astrothesaurus.org/uat/1291"}, {"name": "Protoplanetary nebulae", "uri": "http://astrothesaurus.org/uat/1301"}, {"name": "Pulsar wind nebulae", "uri": "http://astrothesaurus.org/uat/2215"}, {"name": "Reflection nebulae", "uri": "http://astrothesaurus.org/uat/1381"}, {"name": "Ring nebulae", "uri": "http://astrothesaurus.org/uat/1401"}, {"name": "Supernova remnants", "uri": "http://astrothesaurus.org/uat/1667", "children": [{"name": "Pulsar wind nebulae", "uri": "http://astrothesaurus.org/uat/2215"}]}]}, {"name": "Protostars", "uri": "http://astrothesaurus.org/uat/1302", "children": [{"name": "Bok globules", "uri": "http://astrothesaurus.org/uat/171"}, {"name": "Cocoon stars", "uri": "http://astrothesaurus.org/uat/263"}, {"name": "Cometary nebulae", "uri": "http://astrothesaurus.org/uat/278"}, {"name": "Protoplanetary disks", "uri": "http://astrothesaurus.org/uat/1300", "children": [{"name": "Planetesimals", "uri": "http://astrothesaurus.org/uat/1259"}, {"name": "Proplyds", "uri": "http://astrothesaurus.org/uat/1296"}]}, {"name": "Young stellar objects", "uri": "http://astrothesaurus.org/uat/1834", "children": [{"name": "FU Orionis stars", "uri": "http://astrothesaurus.org/uat/553"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Herbig-Haro objects", "uri": "http://astrothesaurus.org/uat/722"}, {"name": "T Tauri stars", "uri": "http://astrothesaurus.org/uat/1681", "children": [{"name": "Classical T Tauri stars", "uri": "http://astrothesaurus.org/uat/252"}, {"name": "Weak-line T Tauri stars", "uri": "http://astrothesaurus.org/uat/1795"}]}]}]}, {"name": "Stellar bridges", "uri": "http://astrothesaurus.org/uat/1587"}, {"name": "Stellar wind bubbles", "uri": "http://astrothesaurus.org/uat/1635", "children": [{"name": "Heliosphere", "uri": "http://astrothesaurus.org/uat/711", "children": [{"name": "Heliopause", "uri": "http://astrothesaurus.org/uat/707"}, {"name": "Heliosheath", "uri": "http://astrothesaurus.org/uat/710"}, {"name": "Stellar bow shocks", "uri": "http://astrothesaurus.org/uat/1586"}, {"name": "Termination shock", "uri": "http://astrothesaurus.org/uat/1690"}]}]}, {"name": "Stellar-interstellar interactions", "uri": "http://astrothesaurus.org/uat/1576", "children": [{"name": "Astrospheres", "uri": "http://astrothesaurus.org/uat/107"}, {"name": "Interstellar medium wind", "uri": "http://astrothesaurus.org/uat/848"}, {"name": "Stellar jets", "uri": "http://astrothesaurus.org/uat/1607"}, {"name": "Stellar winds", "uri": "http://astrothesaurus.org/uat/1636"}]}, {"name": "Superbubbles", "uri": "http://astrothesaurus.org/uat/1656"}, {"name": "Supernova remnants", "uri": "http://astrothesaurus.org/uat/1667", "children": [{"name": "Pulsar wind nebulae", "uri": "http://astrothesaurus.org/uat/2215"}]}, {"name": "Tidal tails", "uri": "http://astrothesaurus.org/uat/1701"}]}, {"name": "Observational astronomy", "uri": "http://astrothesaurus.org/uat/1145", "children": [{"name": "Astronomical instrumentation", "uri": "http://astrothesaurus.org/uat/799", "children": [{"name": "Astronomical detectors", "uri": "http://astrothesaurus.org/uat/84", "children": [{"name": "CMBR detectors", "uri": "http://astrothesaurus.org/uat/259"}, {"name": "Cosmic ray detectors", "uri": "http://astrothesaurus.org/uat/325"}, {"name": "Dark matter detectors", "uri": "http://astrothesaurus.org/uat/355"}, {"name": "Gamma-ray detectors", "uri": "http://astrothesaurus.org/uat/630"}, {"name": "Gravitational wave detectors", "uri": "http://astrothesaurus.org/uat/676"}, {"name": "Radio receivers", "uri": "http://astrothesaurus.org/uat/1355"}, {"name": "X-ray detectors", "uri": "http://astrothesaurus.org/uat/1815"}]}, {"name": "Binoculars", "uri": "http://astrothesaurus.org/uat/2329"}, {"name": "Early astronomical instruments", "uri": "http://astrothesaurus.org/uat/433", "children": [{"name": "Armillary spheres", "uri": "http://astrothesaurus.org/uat/67"}, {"name": "Astronomical sextants", "uri": "http://astrothesaurus.org/uat/93"}, {"name": "Orreries", "uri": "http://astrothesaurus.org/uat/1187"}, {"name": "Photoheliographs", "uri": "http://astrothesaurus.org/uat/1230"}, {"name": "Planispheres", "uri": "http://astrothesaurus.org/uat/2334"}, {"name": "Ptolemy stones", "uri": "http://astrothesaurus.org/uat/1303"}, {"name": "Stone circles", "uri": "http://astrothesaurus.org/uat/1638"}, {"name": "Sundials", "uri": "http://astrothesaurus.org/uat/2335", "children": [{"name": "Gnomons", "uri": "http://astrothesaurus.org/uat/2333"}]}, {"name": "Zenith tubes", "uri": "http://astrothesaurus.org/uat/1841"}]}, {"name": "High altitude balloons", "uri": "http://astrothesaurus.org/uat/738"}, {"name": "Interferometers", "uri": "http://astrothesaurus.org/uat/805", "children": [{"name": "Fabry-Perot interferometers", "uri": "http://astrothesaurus.org/uat/524"}, {"name": "Mach-Zehnder interferometers", "uri": "http://astrothesaurus.org/uat/989"}, {"name": "Michelson interferometers", "uri": "http://astrothesaurus.org/uat/1044"}]}, {"name": "Observatories", "uri": "http://astrothesaurus.org/uat/1147", "children": [{"name": "Antarctic observatories", "uri": "http://astrothesaurus.org/uat/47"}, {"name": "Domes", "uri": "http://astrothesaurus.org/uat/399"}, {"name": "Gamma-ray observatories", "uri": "http://astrothesaurus.org/uat/632"}, {"name": "Infrared observatories", "uri": "http://astrothesaurus.org/uat/791", "children": [{"name": "Infrared Astronomical Satellite", "uri": "http://astrothesaurus.org/uat/785"}, {"name": "James Webb Space Telescope", "uri": "http://astrothesaurus.org/uat/2291"}]}, {"name": "Optical observatories", "uri": "http://astrothesaurus.org/uat/1170", "children": [{"name": "Hubble Space Telescope", "uri": "http://astrothesaurus.org/uat/761"}, {"name": "Very Large Telescope", "uri": "http://astrothesaurus.org/uat/1767"}]}, {"name": "Radio observatories", "uri": "http://astrothesaurus.org/uat/1350"}, {"name": "Solar observatories", "uri": "http://astrothesaurus.org/uat/1513"}, {"name": "Space observatories", "uri": "http://astrothesaurus.org/uat/1543", "children": [{"name": "Gaia", "uri": "http://astrothesaurus.org/uat/2360"}, {"name": "Gamma-ray observatories", "uri": "http://astrothesaurus.org/uat/632"}, {"name": "Hubble Space Telescope", "uri": "http://astrothesaurus.org/uat/761"}, {"name": "Infrared Astronomical Satellite", "uri": "http://astrothesaurus.org/uat/785"}, {"name": "James Webb Space Telescope", "uri": "http://astrothesaurus.org/uat/2291"}]}, {"name": "Ultraviolet observatories", "uri": "http://astrothesaurus.org/uat/1739", "children": [{"name": "Hubble Space Telescope", "uri": "http://astrothesaurus.org/uat/761"}]}, {"name": "Virtual observatories", "uri": "http://astrothesaurus.org/uat/1774"}, {"name": "X-ray observatories", "uri": "http://astrothesaurus.org/uat/1819"}]}, {"name": "Photometer", "uri": "http://astrothesaurus.org/uat/2030"}, {"name": "Polarimeters", "uri": "http://astrothesaurus.org/uat/1277"}, {"name": "Solar instruments", "uri": "http://astrothesaurus.org/uat/1499"}, {"name": "Space vehicles", "uri": "http://astrothesaurus.org/uat/1549", "children": [{"name": "Artificial satellites", "uri": "http://astrothesaurus.org/uat/68", "children": [{"name": "Geosynchronous satellites", "uri": "http://astrothesaurus.org/uat/648", "children": [{"name": "Geostationary satellites", "uri": "http://astrothesaurus.org/uat/647"}]}]}, {"name": "Hall thrusters", "uri": "http://astrothesaurus.org/uat/698"}, {"name": "Rockets", "uri": "http://astrothesaurus.org/uat/2355"}, {"name": "Space debris", "uri": "http://astrothesaurus.org/uat/1542"}, {"name": "Space probes", "uri": "http://astrothesaurus.org/uat/1545", "children": [{"name": "Deep space probes", "uri": "http://astrothesaurus.org/uat/366"}, {"name": "Flyby missions", "uri": "http://astrothesaurus.org/uat/545"}, {"name": "Landers", "uri": "http://astrothesaurus.org/uat/901"}, {"name": "Lunar probes", "uri": "http://astrothesaurus.org/uat/969"}, {"name": "Orbiters", "uri": "http://astrothesaurus.org/uat/1183"}, {"name": "Planetary probes", "uri": "http://astrothesaurus.org/uat/1252"}, {"name": "Rovers", "uri": "http://astrothesaurus.org/uat/1409"}]}, {"name": "Space stations", "uri": "http://astrothesaurus.org/uat/2348", "children": [{"name": "International Space Station", "uri": "http://astrothesaurus.org/uat/2349"}]}, {"name": "Space vehicle instruments", "uri": "http://astrothesaurus.org/uat/1548", "children": [{"name": "Space telescopes", "uri": "http://astrothesaurus.org/uat/1547", "children": [{"name": "Gamma-ray telescopes", "uri": "http://astrothesaurus.org/uat/634"}, {"name": "Infrared telescopes", "uri": "http://astrothesaurus.org/uat/794"}, {"name": "Ultraviolet telescopes", "uri": "http://astrothesaurus.org/uat/1743"}, {"name": "X-ray telescopes", "uri": "http://astrothesaurus.org/uat/1825"}]}]}]}, {"name": "Spectrometers", "uri": "http://astrothesaurus.org/uat/1554", "children": [{"name": "Mass spectrometers", "uri": "http://astrothesaurus.org/uat/1013"}]}, {"name": "Stellar tracking devices", "uri": "http://astrothesaurus.org/uat/1633", "children": [{"name": "Coelostats", "uri": "http://astrothesaurus.org/uat/264"}, {"name": "Heliostats", "uri": "http://astrothesaurus.org/uat/712"}, {"name": "Siderostats", "uri": "http://astrothesaurus.org/uat/1454"}]}, {"name": "Telescopes", "uri": "http://astrothesaurus.org/uat/1689", "children": [{"name": "Automated telescopes", "uri": "http://astrothesaurus.org/uat/121", "children": [{"name": "Automatic patrol telescopes", "uri": "http://astrothesaurus.org/uat/122"}]}, {"name": "Gamma-ray telescopes", "uri": "http://astrothesaurus.org/uat/634"}, {"name": "Grazing incidence telescopes", "uri": "http://astrothesaurus.org/uat/681"}, {"name": "Ground telescopes", "uri": "http://astrothesaurus.org/uat/687"}, {"name": "Meridian circles", "uri": "http://astrothesaurus.org/uat/1027"}, {"name": "Neutrino telescopes", "uri": "http://astrothesaurus.org/uat/1105"}, {"name": "Optical telescopes", "uri": "http://astrothesaurus.org/uat/1174", "children": [{"name": "Catadioptric telescopes", "uri": "http://astrothesaurus.org/uat/204", "children": [{"name": "Baker-Nunn cameras", "uri": "http://astrothesaurus.org/uat/134"}, {"name": "Bouwers telescope", "uri": "http://astrothesaurus.org/uat/177"}, {"name": "Maksutov telescopes", "uri": "http://astrothesaurus.org/uat/1003"}, {"name": "Schmidt cameras", "uri": "http://astrothesaurus.org/uat/1432"}, {"name": "Schmidt-Cassegrain telescopes", "uri": "http://astrothesaurus.org/uat/1431"}]}, {"name": "Eye pieces", "uri": "http://astrothesaurus.org/uat/2344"}, {"name": "Multiple mirror telescopes", "uri": "http://astrothesaurus.org/uat/1080"}, {"name": "Reflecting telescopes", "uri": "http://astrothesaurus.org/uat/1380", "children": [{"name": "Cassegrain telescopes", "uri": "http://astrothesaurus.org/uat/202", "children": [{"name": "Ritchey-Chr\u00e9tien telescopes", "uri": "http://astrothesaurus.org/uat/1403"}]}, {"name": "Gregorian telescopes", "uri": "http://astrothesaurus.org/uat/685"}, {"name": "Newtonian telescopes", "uri": "http://astrothesaurus.org/uat/1111", "children": [{"name": "Dobsonian telescopes", "uri": "http://astrothesaurus.org/uat/398"}]}, {"name": "Primary mirror", "uri": "http://astrothesaurus.org/uat/2345"}, {"name": "Secondary mirror", "uri": "http://astrothesaurus.org/uat/2346"}]}, {"name": "Refracting telescopes", "uri": "http://astrothesaurus.org/uat/1382", "children": [{"name": "Galilean telescopes", "uri": "http://astrothesaurus.org/uat/2357"}, {"name": "Keplerian telescopes", "uri": "http://astrothesaurus.org/uat/2356"}, {"name": "Lenses", "uri": "http://astrothesaurus.org/uat/2347"}]}, {"name": "Solar optical telescopes", "uri": "http://astrothesaurus.org/uat/1514"}]}, {"name": "Radio telescopes", "uri": "http://astrothesaurus.org/uat/1360", "children": [{"name": "Heterodyne receivers", "uri": "http://astrothesaurus.org/uat/727"}, {"name": "Radar telescopes", "uri": "http://astrothesaurus.org/uat/1330"}, {"name": "Radio interferometers", "uri": "http://astrothesaurus.org/uat/1345", "children": [{"name": "Long baseline interferometers", "uri": "http://astrothesaurus.org/uat/931"}, {"name": "Very Large Array", "uri": "http://astrothesaurus.org/uat/1766"}, {"name": "Very long baseline interferometers", "uri": "http://astrothesaurus.org/uat/1768"}]}, {"name": "Radioheliographs", "uri": "http://astrothesaurus.org/uat/1361"}, {"name": "Single-dish antennas", "uri": "http://astrothesaurus.org/uat/1460"}, {"name": "Solar radio telescopes", "uri": "http://astrothesaurus.org/uat/1523"}]}, {"name": "Solar telescopes", "uri": "http://astrothesaurus.org/uat/1531", "children": [{"name": "Radioheliographs", "uri": "http://astrothesaurus.org/uat/1361"}, {"name": "Solar optical telescopes", "uri": "http://astrothesaurus.org/uat/1514"}, {"name": "Solar radio telescopes", "uri": "http://astrothesaurus.org/uat/1523"}]}, {"name": "Space telescopes", "uri": "http://astrothesaurus.org/uat/1547", "children": [{"name": "Gamma-ray telescopes", "uri": "http://astrothesaurus.org/uat/634"}, {"name": "Infrared telescopes", "uri": "http://astrothesaurus.org/uat/794"}, {"name": "Ultraviolet telescopes", "uri": "http://astrothesaurus.org/uat/1743"}, {"name": "X-ray telescopes", "uri": "http://astrothesaurus.org/uat/1825"}]}, {"name": "Telescope mounts", "uri": "http://astrothesaurus.org/uat/1688", "children": [{"name": "Alt-azimuth mounts", "uri": "http://astrothesaurus.org/uat/28"}, {"name": "Equatorial mounts", "uri": "http://astrothesaurus.org/uat/468"}]}, {"name": "Telescope properties", "uri": "http://astrothesaurus.org/uat/2350", "children": [{"name": "Aperture", "uri": "http://astrothesaurus.org/uat/2351"}, {"name": "Focal length", "uri": "http://astrothesaurus.org/uat/2352"}, {"name": "Focal ratio", "uri": "http://astrothesaurus.org/uat/2353"}, {"name": "Prime focus", "uri": "http://astrothesaurus.org/uat/2354"}]}, {"name": "Wide-field telescopes", "uri": "http://astrothesaurus.org/uat/1800", "children": [{"name": "All-sky cameras", "uri": "http://astrothesaurus.org/uat/25", "children": [{"name": "Cloud monitors", "uri": "http://astrothesaurus.org/uat/257"}]}, {"name": "Baker-Nunn cameras", "uri": "http://astrothesaurus.org/uat/134"}]}]}, {"name": "Transit instruments", "uri": "http://astrothesaurus.org/uat/1708", "children": [{"name": "Meridian circles", "uri": "http://astrothesaurus.org/uat/1027"}, {"name": "Zenith telescopes", "uri": "http://astrothesaurus.org/uat/1840"}, {"name": "Zenith tubes", "uri": "http://astrothesaurus.org/uat/1841"}]}]}, {"name": "Astronomical methods", "uri": "http://astrothesaurus.org/uat/1043", "children": [{"name": "Amateur astronomy", "uri": "http://astrothesaurus.org/uat/35", "children": [{"name": "Night vision", "uri": "http://astrothesaurus.org/uat/1113"}, {"name": "Purkinje effect", "uri": "http://astrothesaurus.org/uat/1310"}]}, {"name": "Astrophotography", "uri": "http://astrothesaurus.org/uat/97", "children": [{"name": "Remote telescope astrophotography", "uri": "http://astrothesaurus.org/uat/1395"}, {"name": "Telescope focal plane photography", "uri": "http://astrothesaurus.org/uat/1687"}]}, {"name": "Computational astronomy", "uri": "http://astrothesaurus.org/uat/293", "children": [{"name": "Astronomy data analysis", "uri": "http://astrothesaurus.org/uat/1858", "children": [{"name": "Astronomy data acquisition", "uri": "http://astrothesaurus.org/uat/1860"}, {"name": "Astronomy data modeling", "uri": "http://astrothesaurus.org/uat/1859"}, {"name": "Astronomy data reduction", "uri": "http://astrothesaurus.org/uat/1861"}, {"name": "Astronomy data sonification", "uri": "http://astrothesaurus.org/uat/2305"}, {"name": "Astronomy data visualization", "uri": "http://astrothesaurus.org/uat/1968"}, {"name": "Astronomy databases", "uri": "http://astrothesaurus.org/uat/83"}, {"name": "Astronomy image processing", "uri": "http://astrothesaurus.org/uat/2306"}]}, {"name": "Astronomy software", "uri": "http://astrothesaurus.org/uat/1855", "children": [{"name": "Astronomical simulations", "uri": "http://astrothesaurus.org/uat/1857", "children": [{"name": "Hydrodynamical simulations", "uri": "http://astrothesaurus.org/uat/767"}, {"name": "Magnetohydrodynamical simulations", "uri": "http://astrothesaurus.org/uat/1966"}, {"name": "N-body simulations", "uri": "http://astrothesaurus.org/uat/1083"}, {"name": "Radiative transfer simulations", "uri": "http://astrothesaurus.org/uat/1967"}]}, {"name": "Astronomy web services", "uri": "http://astrothesaurus.org/uat/1856", "children": [{"name": "Virtual observatories", "uri": "http://astrothesaurus.org/uat/1774"}]}, {"name": "Educational software", "uri": "http://astrothesaurus.org/uat/1870"}, {"name": "Software documentation", "uri": "http://astrothesaurus.org/uat/1869", "children": [{"name": "Software tutorials", "uri": "http://astrothesaurus.org/uat/1871"}]}, {"name": "Software licensing", "uri": "http://astrothesaurus.org/uat/1862", "children": [{"name": "Open source software", "uri": "http://astrothesaurus.org/uat/1866"}, {"name": "Private software", "uri": "http://astrothesaurus.org/uat/1867"}, {"name": "Public domain software", "uri": "http://astrothesaurus.org/uat/1863"}, {"name": "Publicly available software", "uri": "http://astrothesaurus.org/uat/1864"}, {"name": "Software available on request", "uri": "http://astrothesaurus.org/uat/1865"}]}]}, {"name": "Computational methods", "uri": "http://astrothesaurus.org/uat/1965", "children": [{"name": "Astronomy databases", "uri": "http://astrothesaurus.org/uat/83"}, {"name": "Cloud computing", "uri": "http://astrothesaurus.org/uat/1970"}, {"name": "Distributed computing", "uri": "http://astrothesaurus.org/uat/1971"}, {"name": "GPU computing", "uri": "http://astrothesaurus.org/uat/1969"}, {"name": "Markov chain Monte Carlo", "uri": "http://astrothesaurus.org/uat/1889", "children": [{"name": "Affine invariant", "uri": "http://astrothesaurus.org/uat/1890"}, {"name": "Gibbs Sampler", "uri": "http://astrothesaurus.org/uat/1891"}, {"name": "Importance sampling", "uri": "http://astrothesaurus.org/uat/1892"}, {"name": "Metropolis-Hastings", "uri": "http://astrothesaurus.org/uat/1893"}, {"name": "Nested sampling", "uri": "http://astrothesaurus.org/uat/1894"}]}]}]}, {"name": "Cosmic ray astronomy", "uri": "http://astrothesaurus.org/uat/324"}, {"name": "Gamma-ray astronomy", "uri": "http://astrothesaurus.org/uat/628"}, {"name": "Gravitational wave astronomy", "uri": "http://astrothesaurus.org/uat/675"}, {"name": "Ground-based astronomy", "uri": "http://astrothesaurus.org/uat/686"}, {"name": "Infrared astronomy", "uri": "http://astrothesaurus.org/uat/786", "children": [{"name": "Far infrared astronomy", "uri": "http://astrothesaurus.org/uat/529", "children": [{"name": "Far infrared interferometry", "uri": "http://astrothesaurus.org/uat/528"}]}, {"name": "Infrared excess", "uri": "http://astrothesaurus.org/uat/788"}, {"name": "Near infrared astronomy", "uri": "http://astrothesaurus.org/uat/1093"}]}, {"name": "Neutrino astronomy", "uri": "http://astrothesaurus.org/uat/1100", "children": [{"name": "Neutrino masses", "uri": "http://astrothesaurus.org/uat/1102"}, {"name": "Solar neutrino problem", "uri": "http://astrothesaurus.org/uat/1510"}, {"name": "Urca process", "uri": "http://astrothesaurus.org/uat/1752"}]}, {"name": "Observational cosmology", "uri": "http://astrothesaurus.org/uat/1146", "children": [{"name": "Cosmological constant", "uri": "http://astrothesaurus.org/uat/334", "children": [{"name": "Cosmological constant experiments", "uri": "http://astrothesaurus.org/uat/335"}]}, {"name": "Hubble constant", "uri": "http://astrothesaurus.org/uat/758"}]}, {"name": "Optical astronomy", "uri": "http://astrothesaurus.org/uat/1776", "children": [{"name": "Optical identification", "uri": "http://astrothesaurus.org/uat/1167"}]}, {"name": "Radar astronomy", "uri": "http://astrothesaurus.org/uat/1329", "children": [{"name": "Radar observations", "uri": "http://astrothesaurus.org/uat/2287"}]}, {"name": "Radio astronomy", "uri": "http://astrothesaurus.org/uat/1338", "children": [{"name": "Brightness temperature", "uri": "http://astrothesaurus.org/uat/182"}, {"name": "Cosmic noise", "uri": "http://astrothesaurus.org/uat/323", "children": [{"name": "Cosmic microwave background radiation", "uri": "http://astrothesaurus.org/uat/322", "children": [{"name": "Cosmic anisotropy", "uri": "http://astrothesaurus.org/uat/316"}, {"name": "Cosmic isotropy", "uri": "http://astrothesaurus.org/uat/320"}, {"name": "Sunyaev-Zeldovich effect", "uri": "http://astrothesaurus.org/uat/1654"}]}]}, {"name": "Interplanetary scintillation", "uri": "http://astrothesaurus.org/uat/828"}, {"name": "Interstellar scintillation", "uri": "http://astrothesaurus.org/uat/855"}, {"name": "Millimeter astronomy", "uri": "http://astrothesaurus.org/uat/1061"}, {"name": "Radio astrometry", "uri": "http://astrothesaurus.org/uat/1337"}, {"name": "Spectral index", "uri": "http://astrothesaurus.org/uat/1553"}, {"name": "Submillimeter astronomy", "uri": "http://astrothesaurus.org/uat/1647"}, {"name": "Sunyaev-Zeldovich effect", "uri": "http://astrothesaurus.org/uat/1654"}]}, {"name": "Time domain astronomy", "uri": "http://astrothesaurus.org/uat/2109"}, {"name": "Ultraviolet astronomy", "uri": "http://astrothesaurus.org/uat/1736", "children": [{"name": "Extreme ultraviolet astronomy", "uri": "http://astrothesaurus.org/uat/2170"}, {"name": "Near ultraviolet astronomy", "uri": "http://astrothesaurus.org/uat/1094"}]}, {"name": "X-ray astronomy", "uri": "http://astrothesaurus.org/uat/1810", "children": [{"name": "X-ray bright point", "uri": "http://astrothesaurus.org/uat/1812"}, {"name": "X-ray identification", "uri": "http://astrothesaurus.org/uat/1817"}]}]}, {"name": "Astronomical research", "uri": "http://astrothesaurus.org/uat/91", "children": [{"name": "Amateur astronomers", "uri": "http://astrothesaurus.org/uat/34"}, {"name": "Astronomers", "uri": "http://astrothesaurus.org/uat/81"}, {"name": "Astronomical reference materials", "uri": "http://astrothesaurus.org/uat/90", "children": [{"name": "Almanacs", "uri": "http://astrothesaurus.org/uat/26", "children": [{"name": "Nautical almanacs", "uri": "http://astrothesaurus.org/uat/1090"}]}, {"name": "Astronomy databases", "uri": "http://astrothesaurus.org/uat/83"}, {"name": "Calendars", "uri": "http://astrothesaurus.org/uat/191"}, {"name": "Catalogs", "uri": "http://astrothesaurus.org/uat/205", "children": [{"name": "Astrographic catalogs", "uri": "http://astrothesaurus.org/uat/77"}, {"name": "Celestial objects catalogs", "uri": "http://astrothesaurus.org/uat/212"}, {"name": "FK catalog", "uri": "http://astrothesaurus.org/uat/539"}, {"name": "Henry Draper catalog", "uri": "http://astrothesaurus.org/uat/719"}, {"name": "Radio source catalogs", "uri": "http://astrothesaurus.org/uat/1356"}, {"name": "Sky surveys", "uri": "http://astrothesaurus.org/uat/1464"}]}, {"name": "Ephemerides", "uri": "http://astrothesaurus.org/uat/464"}, {"name": "Finding charts", "uri": "http://astrothesaurus.org/uat/536"}, {"name": "Finding lists", "uri": "http://astrothesaurus.org/uat/537"}, {"name": "Star atlases", "uri": "http://astrothesaurus.org/uat/1566"}, {"name": "Surveys", "uri": "http://astrothesaurus.org/uat/1671", "children": [{"name": "Galaxy counts", "uri": "http://astrothesaurus.org/uat/588"}, {"name": "Kapteyn Selected Areas", "uri": "http://astrothesaurus.org/uat/883"}, {"name": "Radio source counts", "uri": "http://astrothesaurus.org/uat/1357"}, {"name": "Redshift surveys", "uri": "http://astrothesaurus.org/uat/1378"}, {"name": "Sky surveys", "uri": "http://astrothesaurus.org/uat/1464"}, {"name": "Star counts", "uri": "http://astrothesaurus.org/uat/1568"}, {"name": "Ultraviolet surveys", "uri": "http://astrothesaurus.org/uat/1742"}, {"name": "X-ray surveys", "uri": "http://astrothesaurus.org/uat/1824"}]}]}, {"name": "Astronomical site protection", "uri": "http://astrothesaurus.org/uat/94"}, {"name": "Astrophysicists", "uri": "http://astrothesaurus.org/uat/105"}, {"name": "Classification systems", "uri": "http://astrothesaurus.org/uat/253", "children": [{"name": "Galaxy classification systems", "uri": "http://astrothesaurus.org/uat/582", "children": [{"name": "DDO classification", "uri": "http://astrothesaurus.org/uat/359"}, {"name": "De Vaucouleurs Sandage classification", "uri": "http://astrothesaurus.org/uat/362"}, {"name": "Hubble classification scheme", "uri": "http://astrothesaurus.org/uat/757"}]}, {"name": "Luminosity classification", "uri": "http://astrothesaurus.org/uat/941", "children": [{"name": "Kappa mechanism", "uri": "http://astrothesaurus.org/uat/882"}]}, {"name": "Stellar classification", "uri": "http://astrothesaurus.org/uat/1589", "children": [{"name": "Henry Draper catalog", "uri": "http://astrothesaurus.org/uat/719"}, {"name": "Morgan-Keenan classification", "uri": "http://astrothesaurus.org/uat/2044"}]}]}, {"name": "Cultural astronomy", "uri": "http://astrothesaurus.org/uat/2366", "children": [{"name": "Archaeoastronomy", "uri": "http://astrothesaurus.org/uat/64", "children": [{"name": "Megalithic astronomy", "uri": "http://astrothesaurus.org/uat/1022"}]}, {"name": "Ethnoastronomy", "uri": "http://astrothesaurus.org/uat/477", "children": [{"name": "Indigenous astronomy", "uri": "http://astrothesaurus.org/uat/2367"}]}]}, {"name": "Space research", "uri": "http://astrothesaurus.org/uat/1546", "children": [{"name": "Microgravity", "uri": "http://astrothesaurus.org/uat/1046"}]}, {"name": "Stellar evolutionary models", "uri": "http://astrothesaurus.org/uat/2046", "children": [{"name": "Hertzsprung Russell diagram", "uri": "http://astrothesaurus.org/uat/725", "children": [{"name": "Asymptotic giant branch", "uri": "http://astrothesaurus.org/uat/108"}, {"name": "Blue loop", "uri": "http://astrothesaurus.org/uat/167"}, {"name": "Giant branch", "uri": "http://astrothesaurus.org/uat/650", "children": [{"name": "Red giant branch", "uri": "http://astrothesaurus.org/uat/1368", "children": [{"name": "Red giant bump", "uri": "http://astrothesaurus.org/uat/1369"}, {"name": "Red giant clump", "uri": "http://astrothesaurus.org/uat/1370"}, {"name": "Red giant tip", "uri": "http://astrothesaurus.org/uat/1371"}]}]}, {"name": "Hertzsprung gap", "uri": "http://astrothesaurus.org/uat/724"}, {"name": "Horizontal branch", "uri": "http://astrothesaurus.org/uat/2048"}, {"name": "Instability strip", "uri": "http://astrothesaurus.org/uat/798"}, {"name": "Main sequence", "uri": "http://astrothesaurus.org/uat/2047"}, {"name": "Post-asymptotic giant branch", "uri": "http://astrothesaurus.org/uat/1287"}, {"name": "Pre-main sequence", "uri": "http://astrothesaurus.org/uat/1289"}, {"name": "Turnoff point", "uri": "http://astrothesaurus.org/uat/1721"}]}, {"name": "Stellar evolutionary tracks", "uri": "http://astrothesaurus.org/uat/1600", "children": [{"name": "Hayashi track", "uri": "http://astrothesaurus.org/uat/704"}, {"name": "Henyey track", "uri": "http://astrothesaurus.org/uat/721"}]}]}]}, {"name": "Astronomical techniques", "uri": "http://astrothesaurus.org/uat/1684", "children": [{"name": "Analytical mathematics", "uri": "http://astrothesaurus.org/uat/38", "children": [{"name": "Astronomical models", "uri": "http://astrothesaurus.org/uat/86", "children": [{"name": "Burkert profile", "uri": "http://astrothesaurus.org/uat/186"}, {"name": "Gas-to-dust ratio", "uri": "http://astrothesaurus.org/uat/638"}, {"name": "Mass-to-light ratio", "uri": "http://astrothesaurus.org/uat/1011"}, {"name": "Oort constants", "uri": "http://astrothesaurus.org/uat/1159"}, {"name": "Star counts", "uri": "http://astrothesaurus.org/uat/1568"}]}, {"name": "Luminosity function", "uri": "http://astrothesaurus.org/uat/942"}, {"name": "Perturbation methods", "uri": "http://astrothesaurus.org/uat/1215"}, {"name": "Radiative transfer equation", "uri": "http://astrothesaurus.org/uat/1336"}, {"name": "von Zeipel theorem", "uri": "http://astrothesaurus.org/uat/1781"}]}, {"name": "Astrometry", "uri": "http://astrothesaurus.org/uat/80", "children": [{"name": "Astronomical coordinate systems", "uri": "http://astrothesaurus.org/uat/82", "children": [{"name": "Ecliptic coordinate system", "uri": "http://astrothesaurus.org/uat/445", "children": [{"name": "Ecliptic", "uri": "http://astrothesaurus.org/uat/2336"}, {"name": "Ecliptic latitude", "uri": "http://astrothesaurus.org/uat/446"}, {"name": "Ecliptic longitude", "uri": "http://astrothesaurus.org/uat/447"}, {"name": "Ecliptic poles", "uri": "http://astrothesaurus.org/uat/448", "children": [{"name": "North ecliptic pole", "uri": "http://astrothesaurus.org/uat/1124"}, {"name": "South ecliptic pole", "uri": "http://astrothesaurus.org/uat/1539"}]}, {"name": "Zodiac", "uri": "http://astrothesaurus.org/uat/2337"}]}, {"name": "Equatorial coordinate system", "uri": "http://astrothesaurus.org/uat/467", "children": [{"name": "Celestial equator", "uri": "http://astrothesaurus.org/uat/210"}, {"name": "Celestial poles", "uri": "http://astrothesaurus.org/uat/213", "children": [{"name": "North celestial pole", "uri": "http://astrothesaurus.org/uat/1123"}, {"name": "South celestial pole", "uri": "http://astrothesaurus.org/uat/1538"}]}, {"name": "Celestial sphere", "uri": "http://astrothesaurus.org/uat/214", "children": [{"name": "Asterisms", "uri": "http://astrothesaurus.org/uat/2332"}, {"name": "Constellations", "uri": "http://astrothesaurus.org/uat/296"}, {"name": "Star lore", "uri": "http://astrothesaurus.org/uat/2358"}]}, {"name": "Circumpolar", "uri": "http://astrothesaurus.org/uat/2338"}, {"name": "Declination", "uri": "http://astrothesaurus.org/uat/365"}, {"name": "Equatorial zone", "uri": "http://astrothesaurus.org/uat/469"}, {"name": "Equinox", "uri": "http://astrothesaurus.org/uat/470", "children": [{"name": "Autumnal equinox", "uri": "http://astrothesaurus.org/uat/123"}, {"name": "Vernal equinox", "uri": "http://astrothesaurus.org/uat/1764"}]}, {"name": "Hour angle", "uri": "http://astrothesaurus.org/uat/755"}, {"name": "Right ascension", "uri": "http://astrothesaurus.org/uat/1399"}, {"name": "Solstice", "uri": "http://astrothesaurus.org/uat/1537", "children": [{"name": "Summer solstice", "uri": "http://astrothesaurus.org/uat/1649"}, {"name": "Winter solstice", "uri": "http://astrothesaurus.org/uat/1804"}]}]}, {"name": "Galactic coordinate system", "uri": "http://astrothesaurus.org/uat/566", "children": [{"name": "Galactic latitude", "uri": "http://astrothesaurus.org/uat/568"}, {"name": "Galactic longitude", "uri": "http://astrothesaurus.org/uat/569"}, {"name": "Galactic poles", "uri": "http://astrothesaurus.org/uat/570", "children": [{"name": "North galactic pole", "uri": "http://astrothesaurus.org/uat/1125"}, {"name": "South galactic pole", "uri": "http://astrothesaurus.org/uat/1540"}]}, {"name": "Quadrants", "uri": "http://astrothesaurus.org/uat/1312"}]}, {"name": "Horizontal coordinate system", "uri": "http://astrothesaurus.org/uat/747", "children": [{"name": "Altitude angle", "uri": "http://astrothesaurus.org/uat/30"}, {"name": "Azimuth", "uri": "http://astrothesaurus.org/uat/124"}, {"name": "Cardinal directions", "uri": "http://astrothesaurus.org/uat/2340"}, {"name": "Horizon", "uri": "http://astrothesaurus.org/uat/2339"}, {"name": "Meridian", "uri": "http://astrothesaurus.org/uat/1026"}, {"name": "Nadir", "uri": "http://astrothesaurus.org/uat/1086"}, {"name": "Vertical circle", "uri": "http://astrothesaurus.org/uat/1765"}, {"name": "Zenith", "uri": "http://astrothesaurus.org/uat/1838"}, {"name": "Zenith distance", "uri": "http://astrothesaurus.org/uat/2341"}]}, {"name": "Supergalactic coordinate system", "uri": "http://astrothesaurus.org/uat/1658", "children": [{"name": "Supergalactic latitude", "uri": "http://astrothesaurus.org/uat/1659"}, {"name": "Supergalactic longitude", "uri": "http://astrothesaurus.org/uat/1660"}]}]}, {"name": "Astronomical location", "uri": "http://astrothesaurus.org/uat/85", "children": [{"name": "Angular separation", "uri": "http://astrothesaurus.org/uat/40"}, {"name": "Apparent position", "uri": "http://astrothesaurus.org/uat/60"}, {"name": "Conjunction", "uri": "http://astrothesaurus.org/uat/295"}, {"name": "Line of sight", "uri": "http://astrothesaurus.org/uat/924"}, {"name": "Opposition", "uri": "http://astrothesaurus.org/uat/1163"}, {"name": "Optical position", "uri": "http://astrothesaurus.org/uat/1172"}, {"name": "True position", "uri": "http://astrothesaurus.org/uat/1720"}]}, {"name": "Baade-Wesselink method", "uri": "http://astrothesaurus.org/uat/131"}, {"name": "Bolometric correction", "uri": "http://astrothesaurus.org/uat/173"}, {"name": "Brightness temperature", "uri": "http://astrothesaurus.org/uat/182"}, {"name": "Distance measure", "uri": "http://astrothesaurus.org/uat/395", "children": [{"name": "Astronomical unit", "uri": "http://astrothesaurus.org/uat/95"}, {"name": "Light year", "uri": "http://astrothesaurus.org/uat/919"}, {"name": "Parsec", "uri": "http://astrothesaurus.org/uat/1199"}]}, {"name": "Effective temperature", "uri": "http://astrothesaurus.org/uat/449"}, {"name": "Equator position", "uri": "http://astrothesaurus.org/uat/466"}, {"name": "Fundamental parameters of stars", "uri": "http://astrothesaurus.org/uat/555"}, {"name": "Magnitude", "uri": "http://astrothesaurus.org/uat/999", "children": [{"name": "Absolute magnitude", "uri": "http://astrothesaurus.org/uat/10"}, {"name": "Apparent magnitude", "uri": "http://astrothesaurus.org/uat/59", "children": [{"name": "Limiting magnitude", "uri": "http://astrothesaurus.org/uat/923"}, {"name": "Period determination", "uri": "http://astrothesaurus.org/uat/1211"}, {"name": "Photoelectric magnitude", "uri": "http://astrothesaurus.org/uat/1224"}, {"name": "Photographic magnitude", "uri": "http://astrothesaurus.org/uat/1228"}, {"name": "Photovisual magnitude", "uri": "http://astrothesaurus.org/uat/1238"}, {"name": "Pogson scale", "uri": "http://astrothesaurus.org/uat/1269"}, {"name": "Two-color diagrams", "uri": "http://astrothesaurus.org/uat/1724"}, {"name": "Variable star period change", "uri": "http://astrothesaurus.org/uat/1760"}]}, {"name": "Galaxy magnitudes", "uri": "http://astrothesaurus.org/uat/605"}, {"name": "Integrated magnitude", "uri": "http://astrothesaurus.org/uat/800"}]}, {"name": "Parallax", "uri": "http://astrothesaurus.org/uat/1197", "children": [{"name": "Annual parallax", "uri": "http://astrothesaurus.org/uat/42"}, {"name": "Diurnal parallax", "uri": "http://astrothesaurus.org/uat/396", "children": [{"name": "Horizontal parallax", "uri": "http://astrothesaurus.org/uat/748"}]}, {"name": "Dynamical parallax", "uri": "http://astrothesaurus.org/uat/423"}, {"name": "Kinematic parallax", "uri": "http://astrothesaurus.org/uat/888"}, {"name": "Moving cluster parallax", "uri": "http://astrothesaurus.org/uat/1075"}, {"name": "Photometric parallax", "uri": "http://astrothesaurus.org/uat/1231"}, {"name": "Secular parallax", "uri": "http://astrothesaurus.org/uat/1439"}, {"name": "Statistical parallax", "uri": "http://astrothesaurus.org/uat/1573"}, {"name": "Stellar parallax", "uri": "http://astrothesaurus.org/uat/1618", "children": [{"name": "Solar parallax", "uri": "http://astrothesaurus.org/uat/1516"}]}, {"name": "Trigonometric parallax", "uri": "http://astrothesaurus.org/uat/1713"}]}, {"name": "Phase angle", "uri": "http://astrothesaurus.org/uat/1217"}, {"name": "Phase defect", "uri": "http://astrothesaurus.org/uat/1218"}, {"name": "Phase effect", "uri": "http://astrothesaurus.org/uat/1219"}, {"name": "Phase error", "uri": "http://astrothesaurus.org/uat/1220"}, {"name": "Photographic astrometry", "uri": "http://astrothesaurus.org/uat/1227", "children": [{"name": "Photogrammetry", "uri": "http://astrothesaurus.org/uat/1226"}]}, {"name": "Radial velocity", "uri": "http://astrothesaurus.org/uat/1332"}, {"name": "Radio astrometry", "uri": "http://astrothesaurus.org/uat/1337"}, {"name": "Relativistic aberration", "uri": "http://astrothesaurus.org/uat/1385"}, {"name": "Relaxation time", "uri": "http://astrothesaurus.org/uat/1394"}, {"name": "Sky noise", "uri": "http://astrothesaurus.org/uat/1463"}, {"name": "Solar constant", "uri": "http://astrothesaurus.org/uat/1481"}, {"name": "Space astrometry", "uri": "http://astrothesaurus.org/uat/1541"}, {"name": "Spectral index", "uri": "http://astrothesaurus.org/uat/1553"}, {"name": "Standard stars", "uri": "http://astrothesaurus.org/uat/1564", "children": [{"name": "Comparison stars", "uri": "http://astrothesaurus.org/uat/292"}, {"name": "Photometric standard stars", "uri": "http://astrothesaurus.org/uat/1232"}]}, {"name": "Stellar aberration", "uri": "http://astrothesaurus.org/uat/2328"}, {"name": "Stellar distance", "uri": "http://astrothesaurus.org/uat/1595", "children": [{"name": "Cepheid distance", "uri": "http://astrothesaurus.org/uat/217"}, {"name": "Distance indicators", "uri": "http://astrothesaurus.org/uat/394"}, {"name": "Faber-Jackson distance", "uri": "http://astrothesaurus.org/uat/523"}, {"name": "Standard candles", "uri": "http://astrothesaurus.org/uat/1563"}]}, {"name": "Syzygy", "uri": "http://astrothesaurus.org/uat/1677", "children": [{"name": "Eclipses", "uri": "http://astrothesaurus.org/uat/442", "children": [{"name": "Annular eclipses", "uri": "http://astrothesaurus.org/uat/43"}, {"name": "Antumbra", "uri": "http://astrothesaurus.org/uat/49"}, {"name": "Baily's beads", "uri": "http://astrothesaurus.org/uat/133"}, {"name": "Lunar eclipses", "uri": "http://astrothesaurus.org/uat/951", "children": [{"name": "Saros cycle", "uri": "http://astrothesaurus.org/uat/1424"}]}, {"name": "Partial eclipses", "uri": "http://astrothesaurus.org/uat/1200"}, {"name": "Penumbra", "uri": "http://astrothesaurus.org/uat/1205"}, {"name": "Solar eclipses", "uri": "http://astrothesaurus.org/uat/1489", "children": [{"name": "Diamond ring effect", "uri": "http://astrothesaurus.org/uat/378"}, {"name": "Flash spectra", "uri": "http://astrothesaurus.org/uat/541"}, {"name": "Shadow bands", "uri": "http://astrothesaurus.org/uat/1449"}]}, {"name": "Total eclipses", "uri": "http://astrothesaurus.org/uat/1704"}, {"name": "Umbra", "uri": "http://astrothesaurus.org/uat/1744"}, {"name": "Zone of totality", "uri": "http://astrothesaurus.org/uat/1846"}]}, {"name": "Occultation", "uri": "http://astrothesaurus.org/uat/1148", "children": [{"name": "Asteroid occultation", "uri": "http://astrothesaurus.org/uat/71"}, {"name": "Lunar occultation", "uri": "http://astrothesaurus.org/uat/965"}, {"name": "Occulting disks", "uri": "http://astrothesaurus.org/uat/1149"}, {"name": "Radio occultation", "uri": "http://astrothesaurus.org/uat/1351"}, {"name": "Stellar occultation", "uri": "http://astrothesaurus.org/uat/2135"}]}, {"name": "Transits", "uri": "http://astrothesaurus.org/uat/1711"}]}, {"name": "Two-color diagrams", "uri": "http://astrothesaurus.org/uat/1724"}, {"name": "Wolf diagram", "uri": "http://astrothesaurus.org/uat/1807"}]}, {"name": "Astronomical object identification", "uri": "http://astrothesaurus.org/uat/87"}, {"name": "Astronomical optics", "uri": "http://astrothesaurus.org/uat/88", "children": [{"name": "Adaptive optics", "uri": "http://astrothesaurus.org/uat/2281"}, {"name": "Astronomical seeing", "uri": "http://astrothesaurus.org/uat/92"}, {"name": "Atmospheric refraction", "uri": "http://astrothesaurus.org/uat/115"}, {"name": "Atmospheric scintillation", "uri": "http://astrothesaurus.org/uat/117", "children": [{"name": "Ionospheric scintillation", "uri": "http://astrothesaurus.org/uat/861"}]}, {"name": "Collimation", "uri": "http://astrothesaurus.org/uat/268"}, {"name": "Dark adaption", "uri": "http://astrothesaurus.org/uat/350"}, {"name": "Extinction", "uri": "http://astrothesaurus.org/uat/505", "children": [{"name": "Atmospheric extinction", "uri": "http://astrothesaurus.org/uat/114", "children": [{"name": "Ultraviolet extinction", "uri": "http://astrothesaurus.org/uat/1738"}]}, {"name": "Interstellar extinction", "uri": "http://astrothesaurus.org/uat/841", "children": [{"name": "Interstellar reddening", "uri": "http://astrothesaurus.org/uat/853"}, {"name": "Reddened stars", "uri": "http://astrothesaurus.org/uat/1376"}]}, {"name": "Reddening law", "uri": "http://astrothesaurus.org/uat/1377"}]}, {"name": "Interplanetary scintillation", "uri": "http://astrothesaurus.org/uat/828"}, {"name": "Interstellar scintillation", "uri": "http://astrothesaurus.org/uat/855"}, {"name": "Laser guide stars", "uri": "http://astrothesaurus.org/uat/904"}, {"name": "Optical aberration", "uri": "http://astrothesaurus.org/uat/2330", "children": [{"name": "Chromatic aberration", "uri": "http://astrothesaurus.org/uat/2342"}, {"name": "Spherical aberration", "uri": "http://astrothesaurus.org/uat/2343"}]}, {"name": "Optical filters", "uri": "http://astrothesaurus.org/uat/2331"}, {"name": "Stellar atmospheric opacity", "uri": "http://astrothesaurus.org/uat/1585"}]}, {"name": "CCD observation", "uri": "http://astrothesaurus.org/uat/207"}, {"name": "Calibration", "uri": "http://astrothesaurus.org/uat/2179", "children": [{"name": "Flux calibration", "uri": "http://astrothesaurus.org/uat/544"}]}, {"name": "Coronagraphic imaging", "uri": "http://astrothesaurus.org/uat/313"}, {"name": "Direct imaging", "uri": "http://astrothesaurus.org/uat/387", "children": [{"name": "Far infrared interferometry", "uri": "http://astrothesaurus.org/uat/528"}, {"name": "High contrast techniques", "uri": "http://astrothesaurus.org/uat/2369", "children": [{"name": "Coronagraphic imaging", "uri": "http://astrothesaurus.org/uat/313"}, {"name": "High contrast spectroscopy", "uri": "http://astrothesaurus.org/uat/2370"}]}]}, {"name": "Doppler imaging", "uri": "http://astrothesaurus.org/uat/400", "children": [{"name": "Zeeman-Doppler imaging", "uri": "http://astrothesaurus.org/uat/1837"}]}, {"name": "Doppler shift", "uri": "http://astrothesaurus.org/uat/401", "children": [{"name": "Blueshifted", "uri": "http://astrothesaurus.org/uat/169"}, {"name": "Redshifted", "uri": "http://astrothesaurus.org/uat/1379"}]}, {"name": "Drift scan imaging", "uri": "http://astrothesaurus.org/uat/410"}, {"name": "Faber-Jackson distance", "uri": "http://astrothesaurus.org/uat/523"}, {"name": "Field of view", "uri": "http://astrothesaurus.org/uat/534", "children": [{"name": "Blank fields", "uri": "http://astrothesaurus.org/uat/163"}, {"name": "High latitude field", "uri": "http://astrothesaurus.org/uat/737"}, {"name": "Parallel field", "uri": "http://astrothesaurus.org/uat/1198"}]}, {"name": "High angular resolution", "uri": "http://astrothesaurus.org/uat/2167"}, {"name": "High time resolution astrophysics", "uri": "http://astrothesaurus.org/uat/740"}, {"name": "Interferometry", "uri": "http://astrothesaurus.org/uat/808", "children": [{"name": "Adaptive interferometry", "uri": "http://astrothesaurus.org/uat/19"}, {"name": "Aperture synthesis", "uri": "http://astrothesaurus.org/uat/53"}, {"name": "Atomic interferometry", "uri": "http://astrothesaurus.org/uat/119"}, {"name": "Direct detection interferometry", "uri": "http://astrothesaurus.org/uat/386"}, {"name": "Heterodyne interferometry", "uri": "http://astrothesaurus.org/uat/726"}, {"name": "Holographic interferometry", "uri": "http://astrothesaurus.org/uat/745"}, {"name": "Interferometric correlation", "uri": "http://astrothesaurus.org/uat/807"}, {"name": "Laser interferometry", "uri": "http://astrothesaurus.org/uat/905", "children": [{"name": "LIGO", "uri": "http://astrothesaurus.org/uat/920"}]}, {"name": "Long baseline interferometry", "uri": "http://astrothesaurus.org/uat/932"}, {"name": "Neutron interferometry", "uri": "http://astrothesaurus.org/uat/1106"}, {"name": "Nonclassical interferometry", "uri": "http://astrothesaurus.org/uat/1120"}, {"name": "Optical interferometry", "uri": "http://astrothesaurus.org/uat/1168", "children": [{"name": "Optical phase shifting interferometry", "uri": "http://astrothesaurus.org/uat/1171", "children": [{"name": "Mach-Zehnder interferometers", "uri": "http://astrothesaurus.org/uat/989"}, {"name": "Michelson interferometry", "uri": "http://astrothesaurus.org/uat/1045"}]}]}, {"name": "Phase switching", "uri": "http://astrothesaurus.org/uat/1221"}, {"name": "Radio interferometry", "uri": "http://astrothesaurus.org/uat/1346", "children": [{"name": "Very long baseline interferometry", "uri": "http://astrothesaurus.org/uat/1769"}]}, {"name": "Speckle interferometry", "uri": "http://astrothesaurus.org/uat/1552"}, {"name": "Visibility function", "uri": "http://astrothesaurus.org/uat/1775"}]}, {"name": "Magnetogram", "uri": "http://astrothesaurus.org/uat/2359"}, {"name": "Magnetospheric radio emissions", "uri": "http://astrothesaurus.org/uat/998"}, {"name": "Mass spectrometry", "uri": "http://astrothesaurus.org/uat/2094", "children": [{"name": "Quadrupole mass spectrometry", "uri": "http://astrothesaurus.org/uat/2221"}, {"name": "Time-of-flight mass spectrometry", "uri": "http://astrothesaurus.org/uat/2222"}]}, {"name": "Optical observation", "uri": "http://astrothesaurus.org/uat/1169", "children": [{"name": "Center to limb observations", "uri": "http://astrothesaurus.org/uat/1972"}, {"name": "Optical double stars", "uri": "http://astrothesaurus.org/uat/1165"}]}, {"name": "Photometry", "uri": "http://astrothesaurus.org/uat/1234", "children": [{"name": "CCD photometry", "uri": "http://astrothesaurus.org/uat/208"}, {"name": "Galaxy photometry", "uri": "http://astrothesaurus.org/uat/611"}, {"name": "Light curves", "uri": "http://astrothesaurus.org/uat/918"}, {"name": "Photoelectric photometry", "uri": "http://astrothesaurus.org/uat/1225"}, {"name": "Photographic photometry", "uri": "http://astrothesaurus.org/uat/1229", "children": [{"name": "Photogrammetry", "uri": "http://astrothesaurus.org/uat/1226"}]}, {"name": "Photometric standard stars", "uri": "http://astrothesaurus.org/uat/1232"}, {"name": "Photometric systems", "uri": "http://astrothesaurus.org/uat/1233", "children": [{"name": "Broad band photometry", "uri": "http://astrothesaurus.org/uat/184", "children": [{"name": "AB photometry", "uri": "http://astrothesaurus.org/uat/2168"}, {"name": "BV photometry", "uri": "http://astrothesaurus.org/uat/188"}, {"name": "Bessel photometry", "uri": "http://astrothesaurus.org/uat/147"}, {"name": "Cape RI photometry", "uri": "http://astrothesaurus.org/uat/193"}, {"name": "Cape photometry", "uri": "http://astrothesaurus.org/uat/192"}, {"name": "Gunn photometry", "uri": "http://astrothesaurus.org/uat/688"}, {"name": "HST photometry", "uri": "http://astrothesaurus.org/uat/756"}, {"name": "Johnson photometry", "uri": "http://astrothesaurus.org/uat/871"}, {"name": "Kron-Cousins photometry", "uri": "http://astrothesaurus.org/uat/891"}, {"name": "RGB photometry", "uri": "http://astrothesaurus.org/uat/1397"}, {"name": "RGU photometry", "uri": "http://astrothesaurus.org/uat/1398"}, {"name": "Sloan photometry", "uri": "http://astrothesaurus.org/uat/1465"}, {"name": "Vega photometry", "uri": "http://astrothesaurus.org/uat/2169"}]}, {"name": "Color equation", "uri": "http://astrothesaurus.org/uat/269"}, {"name": "Medium band photometry", "uri": "http://astrothesaurus.org/uat/1021", "children": [{"name": "DDO photometry", "uri": "http://astrothesaurus.org/uat/360"}, {"name": "Geneva photometry", "uri": "http://astrothesaurus.org/uat/642"}, {"name": "Str\u00f6mgren photometry", "uri": "http://astrothesaurus.org/uat/1641"}, {"name": "Vilnius photometry", "uri": "http://astrothesaurus.org/uat/1771"}, {"name": "Walraven photometry", "uri": "http://astrothesaurus.org/uat/1785"}]}, {"name": "Multi-color photometry", "uri": "http://astrothesaurus.org/uat/1077"}, {"name": "Narrow band photometry", "uri": "http://astrothesaurus.org/uat/1088", "children": [{"name": "H alpha photometry", "uri": "http://astrothesaurus.org/uat/691"}, {"name": "H beta photometry", "uri": "http://astrothesaurus.org/uat/692"}]}]}, {"name": "Spectral energy distribution", "uri": "http://astrothesaurus.org/uat/2129"}, {"name": "Spectrophotometry", "uri": "http://astrothesaurus.org/uat/1556", "children": [{"name": "Flux calibration", "uri": "http://astrothesaurus.org/uat/544"}, {"name": "Spectrophotometric standards", "uri": "http://astrothesaurus.org/uat/1555"}]}, {"name": "Stellar photometry", "uri": "http://astrothesaurus.org/uat/1620"}, {"name": "Surface photometry", "uri": "http://astrothesaurus.org/uat/1670"}, {"name": "Transit photometry", "uri": "http://astrothesaurus.org/uat/1709"}, {"name": "Two-color diagrams", "uri": "http://astrothesaurus.org/uat/1724"}, {"name": "Waveband photometry", "uri": "http://astrothesaurus.org/uat/1792", "children": [{"name": "Infrared photometry", "uri": "http://astrothesaurus.org/uat/792"}, {"name": "Ultraviolet photometry", "uri": "http://astrothesaurus.org/uat/1740", "children": [{"name": "Ultraviolet color", "uri": "http://astrothesaurus.org/uat/1737"}]}, {"name": "X-ray photometry", "uri": "http://astrothesaurus.org/uat/1820", "children": [{"name": "Hardness ratio", "uri": "http://astrothesaurus.org/uat/700"}]}]}]}, {"name": "Pointing accuracy", "uri": "http://astrothesaurus.org/uat/1271", "children": [{"name": "Pointing error", "uri": "http://astrothesaurus.org/uat/1272"}]}, {"name": "Polarimetry", "uri": "http://astrothesaurus.org/uat/1278", "children": [{"name": "Spectropolarimetry", "uri": "http://astrothesaurus.org/uat/1973"}]}, {"name": "Remote sensing", "uri": "http://astrothesaurus.org/uat/2191"}, {"name": "Reverberation mapping", "uri": "http://astrothesaurus.org/uat/2019"}, {"name": "Scaling relations", "uri": "http://astrothesaurus.org/uat/2031"}, {"name": "Spectroscopy", "uri": "http://astrothesaurus.org/uat/1558", "children": [{"name": "Atomic spectroscopy", "uri": "http://astrothesaurus.org/uat/2099", "children": [{"name": "Collisional broadening", "uri": "http://astrothesaurus.org/uat/2083"}, {"name": "Line intensities", "uri": "http://astrothesaurus.org/uat/2084"}, {"name": "Line positions", "uri": "http://astrothesaurus.org/uat/2085"}]}, {"name": "Electronic spectroscopy", "uri": "http://astrothesaurus.org/uat/2247"}, {"name": "Galaxy spectroscopy", "uri": "http://astrothesaurus.org/uat/2171"}, {"name": "Gamma-ray spectroscopy", "uri": "http://astrothesaurus.org/uat/2283"}, {"name": "Ice spectroscopy", "uri": "http://astrothesaurus.org/uat/2250"}, {"name": "Infrared spectroscopy", "uri": "http://astrothesaurus.org/uat/2285"}, {"name": "Lyman alpha forest", "uri": "http://astrothesaurus.org/uat/980"}, {"name": "Molecular spectroscopy", "uri": "http://astrothesaurus.org/uat/2095", "children": [{"name": "Collisional broadening", "uri": "http://astrothesaurus.org/uat/2083"}, {"name": "High resolution spectroscopy", "uri": "http://astrothesaurus.org/uat/2096"}, {"name": "Line intensities", "uri": "http://astrothesaurus.org/uat/2084"}, {"name": "Line positions", "uri": "http://astrothesaurus.org/uat/2085"}, {"name": "Photoelectron spectroscopy", "uri": "http://astrothesaurus.org/uat/2097"}]}, {"name": "Radio spectroscopy", "uri": "http://astrothesaurus.org/uat/1359"}, {"name": "Rotational spectroscopy", "uri": "http://astrothesaurus.org/uat/2248", "children": [{"name": "Microwave spectroscopy", "uri": "http://astrothesaurus.org/uat/2251", "children": [{"name": "Cavity-enhanced Fourier-transform", "uri": "http://astrothesaurus.org/uat/2253"}, {"name": "Chirped-pulse Fourier-transform", "uri": "http://astrothesaurus.org/uat/2254"}, {"name": "Direct absorption", "uri": "http://astrothesaurus.org/uat/2255"}]}, {"name": "Millimeter-wave spectroscopy", "uri": "http://astrothesaurus.org/uat/2252", "children": [{"name": "Cavity-enhanced Fourier-transform", "uri": "http://astrothesaurus.org/uat/2253"}, {"name": "Chirped-pulse Fourier-transform", "uri": "http://astrothesaurus.org/uat/2254"}, {"name": "Direct absorption", "uri": "http://astrothesaurus.org/uat/2255"}]}]}, {"name": "Transmission spectroscopy", "uri": "http://astrothesaurus.org/uat/2133"}, {"name": "Ultraviolet spectroscopy", "uri": "http://astrothesaurus.org/uat/2284"}, {"name": "Vibrational spectroscopy", "uri": "http://astrothesaurus.org/uat/2249"}]}]}]}, {"name": "Solar physics", "uri": "http://astrothesaurus.org/uat/1476", "children": [{"name": "CNO anomaly", "uri": "http://astrothesaurus.org/uat/261"}, {"name": "Helioseismology", "uri": "http://astrothesaurus.org/uat/709", "children": [{"name": "Helioseismic pulsations", "uri": "http://astrothesaurus.org/uat/708"}, {"name": "Solar cycle", "uri": "http://astrothesaurus.org/uat/1487", "children": [{"name": "Active sun", "uri": "http://astrothesaurus.org/uat/18"}, {"name": "Quiet sun", "uri": "http://astrothesaurus.org/uat/1322"}, {"name": "Solar dynamo", "uri": "http://astrothesaurus.org/uat/2001"}, {"name": "Sunspot cycle", "uri": "http://astrothesaurus.org/uat/1650"}]}, {"name": "Solar magnetic fields", "uri": "http://astrothesaurus.org/uat/1503", "children": [{"name": "Solar dynamo", "uri": "http://astrothesaurus.org/uat/2001"}, {"name": "Solar magnetic bright points", "uri": "http://astrothesaurus.org/uat/1984"}, {"name": "Solar magnetic flux emergence", "uri": "http://astrothesaurus.org/uat/2000"}, {"name": "Solar magnetic reconnection", "uri": "http://astrothesaurus.org/uat/1504"}]}]}, {"name": "Solar abundances", "uri": "http://astrothesaurus.org/uat/1474"}, {"name": "Solar activity", "uri": "http://astrothesaurus.org/uat/1475", "children": [{"name": "Solar active regions", "uri": "http://astrothesaurus.org/uat/1974", "children": [{"name": "Ephemeral active regions", "uri": "http://astrothesaurus.org/uat/463"}, {"name": "Solar active region filaments", "uri": "http://astrothesaurus.org/uat/1977"}, {"name": "Solar active region magnetic fields", "uri": "http://astrothesaurus.org/uat/1975"}, {"name": "Solar active region velocity fields", "uri": "http://astrothesaurus.org/uat/1976"}, {"name": "Sunspots", "uri": "http://astrothesaurus.org/uat/1653", "children": [{"name": "Delta sunspots", "uri": "http://astrothesaurus.org/uat/1979"}, {"name": "Ephemeral active regions", "uri": "http://astrothesaurus.org/uat/463"}, {"name": "Maunder minimum", "uri": "http://astrothesaurus.org/uat/1015"}, {"name": "Sunspot flow", "uri": "http://astrothesaurus.org/uat/1978"}, {"name": "Sunspot groups", "uri": "http://astrothesaurus.org/uat/1651", "children": [{"name": "Bipolar sunspot groups", "uri": "http://astrothesaurus.org/uat/156"}]}, {"name": "Sunspot number", "uri": "http://astrothesaurus.org/uat/1652"}, {"name": "Wilson effect", "uri": "http://astrothesaurus.org/uat/1803"}]}]}, {"name": "Solar filaments", "uri": "http://astrothesaurus.org/uat/1495", "children": [{"name": "Quiescent solar prominence", "uri": "http://astrothesaurus.org/uat/1321"}, {"name": "Solar active region filaments", "uri": "http://astrothesaurus.org/uat/1977"}, {"name": "Solar filament eruptions", "uri": "http://astrothesaurus.org/uat/1981"}]}, {"name": "Solar flares", "uri": "http://astrothesaurus.org/uat/1496", "children": [{"name": "Solar flare spectra", "uri": "http://astrothesaurus.org/uat/1982"}, {"name": "Solar radio flares", "uri": "http://astrothesaurus.org/uat/1342"}, {"name": "Solar white-light flares", "uri": "http://astrothesaurus.org/uat/1983"}, {"name": "Solar x-ray flares", "uri": "http://astrothesaurus.org/uat/1816"}]}, {"name": "Solar magnetic bright points", "uri": "http://astrothesaurus.org/uat/1984"}, {"name": "Solar prominences", "uri": "http://astrothesaurus.org/uat/1519", "children": [{"name": "Quiescent solar prominence", "uri": "http://astrothesaurus.org/uat/1321"}]}, {"name": "Solar storm", "uri": "http://astrothesaurus.org/uat/1526", "children": [{"name": "Solar coronal mass ejections", "uri": "http://astrothesaurus.org/uat/310"}, {"name": "Solar energetic particles", "uri": "http://astrothesaurus.org/uat/1491"}, {"name": "Solar flares", "uri": "http://astrothesaurus.org/uat/1496", "children": [{"name": "Solar flare spectra", "uri": "http://astrothesaurus.org/uat/1982"}, {"name": "Solar radio flares", "uri": "http://astrothesaurus.org/uat/1342"}, {"name": "Solar white-light flares", "uri": "http://astrothesaurus.org/uat/1983"}, {"name": "Solar x-ray flares", "uri": "http://astrothesaurus.org/uat/1816"}]}]}]}, {"name": "Solar atmosphere", "uri": "http://astrothesaurus.org/uat/1477", "children": [{"name": "Limb brightening", "uri": "http://astrothesaurus.org/uat/921"}, {"name": "Limb darkening", "uri": "http://astrothesaurus.org/uat/922"}, {"name": "Solar chromosphere", "uri": "http://astrothesaurus.org/uat/1479", "children": [{"name": "Active solar chromosphere", "uri": "http://astrothesaurus.org/uat/1980"}, {"name": "Alfven waves", "uri": "http://astrothesaurus.org/uat/23"}, {"name": "Ellerman Bombs", "uri": "http://astrothesaurus.org/uat/1985"}, {"name": "Plages", "uri": "http://astrothesaurus.org/uat/1240"}, {"name": "Quiet solar chromosphere", "uri": "http://astrothesaurus.org/uat/1986"}, {"name": "Solar chromospheric heating", "uri": "http://astrothesaurus.org/uat/1987"}, {"name": "Solar spicules", "uri": "http://astrothesaurus.org/uat/1525", "children": [{"name": "Solar fibrils", "uri": "http://astrothesaurus.org/uat/532"}, {"name": "Solar macrospicules", "uri": "http://astrothesaurus.org/uat/1502"}, {"name": "Solar mottles", "uri": "http://astrothesaurus.org/uat/1074"}]}, {"name": "Solar transition region", "uri": "http://astrothesaurus.org/uat/1532"}]}, {"name": "Solar corona", "uri": "http://astrothesaurus.org/uat/1483", "children": [{"name": "Active solar corona", "uri": "http://astrothesaurus.org/uat/1988"}, {"name": "Quiet solar corona", "uri": "http://astrothesaurus.org/uat/1992"}, {"name": "Solar E corona", "uri": "http://astrothesaurus.org/uat/1990"}, {"name": "Solar F corona", "uri": "http://astrothesaurus.org/uat/1991"}, {"name": "Solar K corona", "uri": "http://astrothesaurus.org/uat/2042"}, {"name": "Solar coronal heating", "uri": "http://astrothesaurus.org/uat/1989"}, {"name": "Solar coronal holes", "uri": "http://astrothesaurus.org/uat/1484"}, {"name": "Solar coronal lines", "uri": "http://astrothesaurus.org/uat/2038"}, {"name": "Solar coronal loops", "uri": "http://astrothesaurus.org/uat/1485"}, {"name": "Solar coronal plumes", "uri": "http://astrothesaurus.org/uat/2039"}, {"name": "Solar coronal radio emission", "uri": "http://astrothesaurus.org/uat/1993"}, {"name": "Solar coronal seismology", "uri": "http://astrothesaurus.org/uat/1994"}, {"name": "Solar coronal streamers", "uri": "http://astrothesaurus.org/uat/1486"}, {"name": "Solar coronal transients", "uri": "http://astrothesaurus.org/uat/312"}, {"name": "Solar coronal waves", "uri": "http://astrothesaurus.org/uat/1995"}, {"name": "Solar transition region", "uri": "http://astrothesaurus.org/uat/1532"}]}, {"name": "Solar photosphere", "uri": "http://astrothesaurus.org/uat/1518", "children": [{"name": "Solar granules", "uri": "http://astrothesaurus.org/uat/1875"}]}]}, {"name": "Solar electromagnetic emission", "uri": "http://astrothesaurus.org/uat/1490", "children": [{"name": "Solar extreme ultraviolet emission", "uri": "http://astrothesaurus.org/uat/1493"}, {"name": "Solar gamma-ray emission", "uri": "http://astrothesaurus.org/uat/1497"}, {"name": "Solar radio emission", "uri": "http://astrothesaurus.org/uat/1522"}, {"name": "Solar ultraviolet emission", "uri": "http://astrothesaurus.org/uat/1533"}, {"name": "Solar x-ray emission", "uri": "http://astrothesaurus.org/uat/1536"}]}, {"name": "Solar evolution", "uri": "http://astrothesaurus.org/uat/1492", "children": [{"name": "Solar nebulae", "uri": "http://astrothesaurus.org/uat/1508"}]}, {"name": "Solar faculae", "uri": "http://astrothesaurus.org/uat/1494"}, {"name": "Solar flares", "uri": "http://astrothesaurus.org/uat/1496", "children": [{"name": "Solar flare spectra", "uri": "http://astrothesaurus.org/uat/1982"}, {"name": "Solar radio flares", "uri": "http://astrothesaurus.org/uat/1342"}, {"name": "Solar white-light flares", "uri": "http://astrothesaurus.org/uat/1983"}, {"name": "Solar x-ray flares", "uri": "http://astrothesaurus.org/uat/1816"}]}, {"name": "Solar granulation", "uri": "http://astrothesaurus.org/uat/1498", "children": [{"name": "Mesogranulation", "uri": "http://astrothesaurus.org/uat/1028"}, {"name": "Supergranulation", "uri": "http://astrothesaurus.org/uat/1662"}]}, {"name": "Solar interior", "uri": "http://astrothesaurus.org/uat/1500", "children": [{"name": "Helioseismic pulsations", "uri": "http://astrothesaurus.org/uat/708"}, {"name": "Solar convective zone", "uri": "http://astrothesaurus.org/uat/1998"}, {"name": "Solar core", "uri": "http://astrothesaurus.org/uat/1482"}, {"name": "Solar differential rotation", "uri": "http://astrothesaurus.org/uat/1996"}, {"name": "Solar meridional circulation", "uri": "http://astrothesaurus.org/uat/1874"}, {"name": "Solar radiative zone", "uri": "http://astrothesaurus.org/uat/1999"}]}, {"name": "Solar magnetic fields", "uri": "http://astrothesaurus.org/uat/1503", "children": [{"name": "Solar dynamo", "uri": "http://astrothesaurus.org/uat/2001"}, {"name": "Solar magnetic bright points", "uri": "http://astrothesaurus.org/uat/1984"}, {"name": "Solar magnetic flux emergence", "uri": "http://astrothesaurus.org/uat/2000"}, {"name": "Solar magnetic reconnection", "uri": "http://astrothesaurus.org/uat/1504"}]}, {"name": "Solar mass", "uri": "http://astrothesaurus.org/uat/1506"}, {"name": "Solar motion", "uri": "http://astrothesaurus.org/uat/1507", "children": [{"name": "Antapex", "uri": "http://astrothesaurus.org/uat/46"}, {"name": "Apex", "uri": "http://astrothesaurus.org/uat/54"}, {"name": "Solar atmospheric motions", "uri": "http://astrothesaurus.org/uat/1478"}]}, {"name": "Solar oscillations", "uri": "http://astrothesaurus.org/uat/1515", "children": [{"name": "Helioseismic pulsations", "uri": "http://astrothesaurus.org/uat/708"}]}, {"name": "Solar particle emission", "uri": "http://astrothesaurus.org/uat/1517", "children": [{"name": "Solar coronal mass ejection shocks", "uri": "http://astrothesaurus.org/uat/1997"}, {"name": "Solar energetic particles", "uri": "http://astrothesaurus.org/uat/1491"}, {"name": "Solar neutrons", "uri": "http://astrothesaurus.org/uat/1512"}]}, {"name": "Solar radiation", "uri": "http://astrothesaurus.org/uat/1521"}, {"name": "Solar radius", "uri": "http://astrothesaurus.org/uat/1488"}, {"name": "Solar rotation", "uri": "http://astrothesaurus.org/uat/1524", "children": [{"name": "Solar differential rotation", "uri": "http://astrothesaurus.org/uat/1996"}]}, {"name": "Solar spectral irradiance", "uri": "http://astrothesaurus.org/uat/1501"}, {"name": "Solar surface", "uri": "http://astrothesaurus.org/uat/1527"}, {"name": "Solar wind", "uri": "http://astrothesaurus.org/uat/1534", "children": [{"name": "Fast solar wind", "uri": "http://astrothesaurus.org/uat/1872"}, {"name": "Heliopause", "uri": "http://astrothesaurus.org/uat/707"}, {"name": "Slow solar wind", "uri": "http://astrothesaurus.org/uat/1873"}]}, {"name": "Sunspots", "uri": "http://astrothesaurus.org/uat/1653", "children": [{"name": "Delta sunspots", "uri": "http://astrothesaurus.org/uat/1979"}, {"name": "Ephemeral active regions", "uri": "http://astrothesaurus.org/uat/463"}, {"name": "Maunder minimum", "uri": "http://astrothesaurus.org/uat/1015"}, {"name": "Sunspot flow", "uri": "http://astrothesaurus.org/uat/1978"}, {"name": "Sunspot groups", "uri": "http://astrothesaurus.org/uat/1651", "children": [{"name": "Bipolar sunspot groups", "uri": "http://astrothesaurus.org/uat/156"}]}, {"name": "Sunspot number", "uri": "http://astrothesaurus.org/uat/1652"}, {"name": "Wilson effect", "uri": "http://astrothesaurus.org/uat/1803"}]}]}, {"name": "Solar system astronomy", "uri": "http://astrothesaurus.org/uat/1529", "children": [{"name": "Earth-moon system", "uri": "http://astrothesaurus.org/uat/436"}, {"name": "Lunar science", "uri": "http://astrothesaurus.org/uat/972", "children": [{"name": "Lunar atmosphere", "uri": "http://astrothesaurus.org/uat/947"}, {"name": "Lunar evolution", "uri": "http://astrothesaurus.org/uat/952"}, {"name": "Lunar origin", "uri": "http://astrothesaurus.org/uat/966"}, {"name": "Lunar phase", "uri": "http://astrothesaurus.org/uat/968"}, {"name": "Lunar theory", "uri": "http://astrothesaurus.org/uat/975", "children": [{"name": "Annual equation", "uri": "http://astrothesaurus.org/uat/41"}, {"name": "Anomalistic month", "uri": "http://astrothesaurus.org/uat/44"}, {"name": "Lunar node regression", "uri": "http://astrothesaurus.org/uat/964"}, {"name": "Lunation", "uri": "http://astrothesaurus.org/uat/2316"}]}, {"name": "Selenology", "uri": "http://astrothesaurus.org/uat/1441", "children": [{"name": "Lunar features", "uri": "http://astrothesaurus.org/uat/953", "children": [{"name": "Lunar craters", "uri": "http://astrothesaurus.org/uat/949"}, {"name": "Lunar domes", "uri": "http://astrothesaurus.org/uat/950"}, {"name": "Lunar highlands", "uri": "http://astrothesaurus.org/uat/957"}, {"name": "Lunar maria", "uri": "http://astrothesaurus.org/uat/961"}, {"name": "Lunar mountains", "uri": "http://astrothesaurus.org/uat/963"}, {"name": "Lunar rays", "uri": "http://astrothesaurus.org/uat/970"}, {"name": "Lunar rilles", "uri": "http://astrothesaurus.org/uat/971"}, {"name": "Lunar transient phenomena", "uri": "http://astrothesaurus.org/uat/976"}]}, {"name": "Lunar geodesy", "uri": "http://astrothesaurus.org/uat/955"}, {"name": "Lunar gravitational field", "uri": "http://astrothesaurus.org/uat/956"}, {"name": "Lunar interior", "uri": "http://astrothesaurus.org/uat/959", "children": [{"name": "Lunar composition", "uri": "http://astrothesaurus.org/uat/948"}, {"name": "Lunar seismology", "uri": "http://astrothesaurus.org/uat/973"}]}, {"name": "Lunar magnetic fields", "uri": "http://astrothesaurus.org/uat/960"}, {"name": "Lunar surface", "uri": "http://astrothesaurus.org/uat/974", "children": [{"name": "Lunar geochronology", "uri": "http://astrothesaurus.org/uat/954"}, {"name": "Lunar impacts", "uri": "http://astrothesaurus.org/uat/958", "children": [{"name": "Lunar craters", "uri": "http://astrothesaurus.org/uat/949"}]}, {"name": "Lunar mineralogy", "uri": "http://astrothesaurus.org/uat/962", "children": [{"name": "Lunar regolith", "uri": "http://astrothesaurus.org/uat/2315"}]}, {"name": "Lunar petrology", "uri": "http://astrothesaurus.org/uat/967"}]}]}]}, {"name": "Planetary science", "uri": "http://astrothesaurus.org/uat/1255", "children": [{"name": "Albedo", "uri": "http://astrothesaurus.org/uat/2321"}, {"name": "Asteroid dynamics", "uri": "http://astrothesaurus.org/uat/2210", "children": [{"name": "Asteroid rotation", "uri": "http://astrothesaurus.org/uat/2211"}]}, {"name": "Atmospheric science", "uri": "http://astrothesaurus.org/uat/116", "children": [{"name": "Aeronomy", "uri": "http://astrothesaurus.org/uat/22"}, {"name": "Atmospheric effects", "uri": "http://astrothesaurus.org/uat/113", "children": [{"name": "Seasonal phenomena", "uri": "http://astrothesaurus.org/uat/1437"}, {"name": "Sky brightness", "uri": "http://astrothesaurus.org/uat/1462", "children": [{"name": "Night sky brightness", "uri": "http://astrothesaurus.org/uat/1112", "children": [{"name": "Gegenschein", "uri": "http://astrothesaurus.org/uat/640"}, {"name": "Light pollution", "uri": "http://astrothesaurus.org/uat/2318"}]}, {"name": "Twilight", "uri": "http://astrothesaurus.org/uat/1722"}]}]}]}, {"name": "Collisional processes", "uri": "http://astrothesaurus.org/uat/2286"}, {"name": "Comet dynamics", "uri": "http://astrothesaurus.org/uat/2213"}, {"name": "Comet origins", "uri": "http://astrothesaurus.org/uat/2203"}, {"name": "Interplanetary magnetic fields", "uri": "http://astrothesaurus.org/uat/824"}, {"name": "Interplanetary physics", "uri": "http://astrothesaurus.org/uat/827", "children": [{"name": "Corotating streams", "uri": "http://astrothesaurus.org/uat/314"}, {"name": "Interplanetary discontinuities", "uri": "http://astrothesaurus.org/uat/820"}, {"name": "Interplanetary particle acceleration", "uri": "http://astrothesaurus.org/uat/826"}, {"name": "Interplanetary shocks", "uri": "http://astrothesaurus.org/uat/829"}, {"name": "Interplanetary turbulence", "uri": "http://astrothesaurus.org/uat/830"}, {"name": "Pickup ions", "uri": "http://astrothesaurus.org/uat/1239"}, {"name": "Planetary bow shocks", "uri": "http://astrothesaurus.org/uat/1246"}, {"name": "Solar energetic particles", "uri": "http://astrothesaurus.org/uat/1491"}, {"name": "Solar wind termination", "uri": "http://astrothesaurus.org/uat/1535"}]}, {"name": "Natural satellite atmospheres", "uri": "http://astrothesaurus.org/uat/2214"}, {"name": "Natural satellite dynamics", "uri": "http://astrothesaurus.org/uat/2212"}, {"name": "Natural satellite evolution", "uri": "http://astrothesaurus.org/uat/2297"}, {"name": "Natural satellite formation", "uri": "http://astrothesaurus.org/uat/1425"}, {"name": "Natural satellite surfaces", "uri": "http://astrothesaurus.org/uat/2208"}, {"name": "Planetary alignment", "uri": "http://astrothesaurus.org/uat/1243"}, {"name": "Planetary atmospheres", "uri": "http://astrothesaurus.org/uat/1244", "children": [{"name": "Atmospheric clouds", "uri": "http://astrothesaurus.org/uat/2180", "children": [{"name": "Earth's clouds", "uri": "http://astrothesaurus.org/uat/258"}]}, {"name": "Atmospheric composition", "uri": "http://astrothesaurus.org/uat/2120"}, {"name": "Atmospheric dynamics", "uri": "http://astrothesaurus.org/uat/2300"}, {"name": "Atmospheric evolution", "uri": "http://astrothesaurus.org/uat/2301"}, {"name": "Atmospheric structure", "uri": "http://astrothesaurus.org/uat/2309"}, {"name": "Atmospheric tides", "uri": "http://astrothesaurus.org/uat/118"}, {"name": "Atmospheric variability", "uri": "http://astrothesaurus.org/uat/2119"}, {"name": "Earth atmosphere", "uri": "http://astrothesaurus.org/uat/437", "children": [{"name": "Atmospheric circulation", "uri": "http://astrothesaurus.org/uat/112"}, {"name": "Atmospheric tides", "uri": "http://astrothesaurus.org/uat/118"}, {"name": "Diffuse radiation", "uri": "http://astrothesaurus.org/uat/383"}, {"name": "Earth ionosphere", "uri": "http://astrothesaurus.org/uat/860", "children": [{"name": "D layer", "uri": "http://astrothesaurus.org/uat/347"}, {"name": "E layer", "uri": "http://astrothesaurus.org/uat/427"}, {"name": "F layer", "uri": "http://astrothesaurus.org/uat/518"}]}, {"name": "Earth's clouds", "uri": "http://astrothesaurus.org/uat/258"}, {"name": "Earth's seasons", "uri": "http://astrothesaurus.org/uat/2311"}, {"name": "Exosphere", "uri": "http://astrothesaurus.org/uat/499", "children": [{"name": "Geocorona", "uri": "http://astrothesaurus.org/uat/644"}]}, {"name": "Greenhouse effect", "uri": "http://astrothesaurus.org/uat/2314", "children": [{"name": "Greenhouse gases", "uri": "http://astrothesaurus.org/uat/684", "children": [{"name": "Carbon dioxide", "uri": "http://astrothesaurus.org/uat/196"}, {"name": "Chlorofluorocarbons", "uri": "http://astrothesaurus.org/uat/227"}, {"name": "Methane", "uri": "http://astrothesaurus.org/uat/1042"}, {"name": "Nitrous oxide", "uri": "http://astrothesaurus.org/uat/1114"}, {"name": "Water vapor", "uri": "http://astrothesaurus.org/uat/1791"}]}]}, {"name": "Humidity", "uri": "http://astrothesaurus.org/uat/764"}, {"name": "Land-atmosphere interactions", "uri": "http://astrothesaurus.org/uat/900"}, {"name": "Mesopause", "uri": "http://astrothesaurus.org/uat/1029"}, {"name": "Mesosphere", "uri": "http://astrothesaurus.org/uat/1030"}, {"name": "Ocean-atmosphere interactions", "uri": "http://astrothesaurus.org/uat/1150"}, {"name": "Ozone layer", "uri": "http://astrothesaurus.org/uat/1194"}, {"name": "Stratopause", "uri": "http://astrothesaurus.org/uat/1639"}, {"name": "Stratosphere", "uri": "http://astrothesaurus.org/uat/1640"}, {"name": "Thermosphere", "uri": "http://astrothesaurus.org/uat/1694"}, {"name": "Tropopause", "uri": "http://astrothesaurus.org/uat/1717"}, {"name": "Troposphere", "uri": "http://astrothesaurus.org/uat/1718"}]}, {"name": "Lightning", "uri": "http://astrothesaurus.org/uat/2193"}, {"name": "Planetary boundary layers", "uri": "http://astrothesaurus.org/uat/1245"}, {"name": "Planetary ionospheres", "uri": "http://astrothesaurus.org/uat/2185"}, {"name": "Scale height", "uri": "http://astrothesaurus.org/uat/1429"}, {"name": "Upper atmosphere", "uri": "http://astrothesaurus.org/uat/1748"}, {"name": "Water vapor", "uri": "http://astrothesaurus.org/uat/1791"}]}, {"name": "Planetary climates", "uri": "http://astrothesaurus.org/uat/2184"}, {"name": "Planetary dynamics", "uri": "http://astrothesaurus.org/uat/2173", "children": [{"name": "Glaciation", "uri": "http://astrothesaurus.org/uat/2302"}, {"name": "Tectonics", "uri": "http://astrothesaurus.org/uat/2175", "children": [{"name": "Plate tectonics", "uri": "http://astrothesaurus.org/uat/1265"}]}, {"name": "Volcanism", "uri": "http://astrothesaurus.org/uat/2174"}]}, {"name": "Planetary magnetospheres", "uri": "http://astrothesaurus.org/uat/997", "children": [{"name": "Aurorae", "uri": "http://astrothesaurus.org/uat/2192"}, {"name": "Magnetic poles", "uri": "http://astrothesaurus.org/uat/2319"}, {"name": "Magnetic storms", "uri": "http://astrothesaurus.org/uat/2320"}, {"name": "Magnetospheric radio emissions", "uri": "http://astrothesaurus.org/uat/998"}, {"name": "Plasmapause", "uri": "http://astrothesaurus.org/uat/1264"}, {"name": "Van Allen radiation belts", "uri": "http://astrothesaurus.org/uat/1758"}]}, {"name": "Planetary migration", "uri": "http://astrothesaurus.org/uat/2206"}, {"name": "Planetary structure", "uri": "http://astrothesaurus.org/uat/1256", "children": [{"name": "Glaciers", "uri": "http://astrothesaurus.org/uat/2303"}, {"name": "Hydrosphere", "uri": "http://astrothesaurus.org/uat/770"}, {"name": "Lithosphere", "uri": "http://astrothesaurus.org/uat/928"}, {"name": "Mantle", "uri": "http://astrothesaurus.org/uat/1005"}, {"name": "Oblateness", "uri": "http://astrothesaurus.org/uat/1143"}, {"name": "Planetary cores", "uri": "http://astrothesaurus.org/uat/1247"}, {"name": "Planetary geology", "uri": "http://astrothesaurus.org/uat/2288", "children": [{"name": "Geological processes", "uri": "http://astrothesaurus.org/uat/2289"}, {"name": "Planetary mineralogy", "uri": "http://astrothesaurus.org/uat/2304"}]}, {"name": "Planetary interior", "uri": "http://astrothesaurus.org/uat/1248"}, {"name": "Planetary polar regions", "uri": "http://astrothesaurus.org/uat/1251"}, {"name": "Planetary surfaces", "uri": "http://astrothesaurus.org/uat/2113", "children": [{"name": "Impact phenomena", "uri": "http://astrothesaurus.org/uat/779", "children": [{"name": "Craters", "uri": "http://astrothesaurus.org/uat/2282"}, {"name": "Impact gardening", "uri": "http://astrothesaurus.org/uat/2299"}]}, {"name": "Regolith", "uri": "http://astrothesaurus.org/uat/2294"}, {"name": "Surface composition", "uri": "http://astrothesaurus.org/uat/2115"}, {"name": "Surface ices", "uri": "http://astrothesaurus.org/uat/2117"}, {"name": "Surface processes", "uri": "http://astrothesaurus.org/uat/2116"}, {"name": "Surface variability", "uri": "http://astrothesaurus.org/uat/2114"}]}, {"name": "Polar caps", "uri": "http://astrothesaurus.org/uat/1273"}, {"name": "Volcanoes", "uri": "http://astrothesaurus.org/uat/1780"}]}, {"name": "Planetary system evolution", "uri": "http://astrothesaurus.org/uat/2292", "children": [{"name": "Solar system evolution", "uri": "http://astrothesaurus.org/uat/2293"}]}, {"name": "Planetary system formation", "uri": "http://astrothesaurus.org/uat/1257", "children": [{"name": "Planet formation", "uri": "http://astrothesaurus.org/uat/1241"}, {"name": "Protoplanetary disks", "uri": "http://astrothesaurus.org/uat/1300", "children": [{"name": "Planetesimals", "uri": "http://astrothesaurus.org/uat/1259"}, {"name": "Proplyds", "uri": "http://astrothesaurus.org/uat/1296"}]}, {"name": "Solar system formation", "uri": "http://astrothesaurus.org/uat/1530"}]}, {"name": "Planetary theory", "uri": "http://astrothesaurus.org/uat/1258"}, {"name": "Planetary thermal histories", "uri": "http://astrothesaurus.org/uat/2290"}, {"name": "Planetary-disk interactions", "uri": "http://astrothesaurus.org/uat/2204"}, {"name": "Solar-planetary interactions", "uri": "http://astrothesaurus.org/uat/1472", "children": [{"name": "Solar-terrestrial interactions", "uri": "http://astrothesaurus.org/uat/1473"}]}, {"name": "Surface gravity", "uri": "http://astrothesaurus.org/uat/1669"}]}, {"name": "Solar system", "uri": "http://astrothesaurus.org/uat/1528", "children": [{"name": "Asteroid belt", "uri": "http://astrothesaurus.org/uat/70"}, {"name": "Dwarf planets", "uri": "http://astrothesaurus.org/uat/419", "children": [{"name": "Ceres", "uri": "http://astrothesaurus.org/uat/219"}, {"name": "Pluto", "uri": "http://astrothesaurus.org/uat/1267"}]}, {"name": "Heliosphere", "uri": "http://astrothesaurus.org/uat/711", "children": [{"name": "Heliopause", "uri": "http://astrothesaurus.org/uat/707"}, {"name": "Heliosheath", "uri": "http://astrothesaurus.org/uat/710"}, {"name": "Stellar bow shocks", "uri": "http://astrothesaurus.org/uat/1586"}, {"name": "Termination shock", "uri": "http://astrothesaurus.org/uat/1690"}]}, {"name": "Interplanetary medium", "uri": "http://astrothesaurus.org/uat/825", "children": [{"name": "Interplanetary dust", "uri": "http://astrothesaurus.org/uat/821", "children": [{"name": "Meteoroid dust clouds", "uri": "http://astrothesaurus.org/uat/1039"}, {"name": "Zodiacal cloud", "uri": "http://astrothesaurus.org/uat/1845", "children": [{"name": "Zodiacal dust bands", "uri": "http://astrothesaurus.org/uat/2194"}]}]}, {"name": "Interplanetary gas", "uri": "http://astrothesaurus.org/uat/822"}, {"name": "Interplanetary grains", "uri": "http://astrothesaurus.org/uat/823"}, {"name": "Protoplanetary disks", "uri": "http://astrothesaurus.org/uat/1300", "children": [{"name": "Planetesimals", "uri": "http://astrothesaurus.org/uat/1259"}, {"name": "Proplyds", "uri": "http://astrothesaurus.org/uat/1296"}]}]}, {"name": "Kuiper belt", "uri": "http://astrothesaurus.org/uat/893", "children": [{"name": "Trans-Neptunian objects", "uri": "http://astrothesaurus.org/uat/1705", "children": [{"name": "Classical Kuiper belt objects", "uri": "http://astrothesaurus.org/uat/250"}, {"name": "Detached objects", "uri": "http://astrothesaurus.org/uat/376"}, {"name": "Neptune trojans", "uri": "http://astrothesaurus.org/uat/1097"}, {"name": "Plutoids", "uri": "http://astrothesaurus.org/uat/1268"}, {"name": "Resonant Kuiper belt objects", "uri": "http://astrothesaurus.org/uat/1396", "children": [{"name": "Plutinos", "uri": "http://astrothesaurus.org/uat/1266"}, {"name": "Scattered disk objects", "uri": "http://astrothesaurus.org/uat/1430"}, {"name": "Twotinos", "uri": "http://astrothesaurus.org/uat/1727"}]}]}]}, {"name": "Meteoroids", "uri": "http://astrothesaurus.org/uat/1040", "children": [{"name": "Meteorites", "uri": "http://astrothesaurus.org/uat/1038", "children": [{"name": "Achondrites", "uri": "http://astrothesaurus.org/uat/15"}, {"name": "Aerolites", "uri": "http://astrothesaurus.org/uat/21"}, {"name": "Ataxites", "uri": "http://astrothesaurus.org/uat/109"}, {"name": "Chondrites", "uri": "http://astrothesaurus.org/uat/228", "children": [{"name": "Carbonaceous chondrites", "uri": "http://astrothesaurus.org/uat/200"}, {"name": "Chondrules", "uri": "http://astrothesaurus.org/uat/229"}]}, {"name": "Iron meteorites", "uri": "http://astrothesaurus.org/uat/863"}, {"name": "Meteorite composition", "uri": "http://astrothesaurus.org/uat/1037"}, {"name": "Micrometeorites", "uri": "http://astrothesaurus.org/uat/1047"}, {"name": "Tektites", "uri": "http://astrothesaurus.org/uat/1686", "children": [{"name": "Australites", "uri": "http://astrothesaurus.org/uat/120"}, {"name": "Bediasites", "uri": "http://astrothesaurus.org/uat/144"}, {"name": "Indochinites", "uri": "http://astrothesaurus.org/uat/783"}, {"name": "Moldavites", "uri": "http://astrothesaurus.org/uat/1070"}]}]}, {"name": "Meteors", "uri": "http://astrothesaurus.org/uat/1041", "children": [{"name": "Fireballs", "uri": "http://astrothesaurus.org/uat/538", "children": [{"name": "Bolides", "uri": "http://astrothesaurus.org/uat/172"}]}, {"name": "Meteor showers", "uri": "http://astrothesaurus.org/uat/1034", "children": [{"name": "Meteor radiants", "uri": "http://astrothesaurus.org/uat/1033"}, {"name": "Zenith hourly rate", "uri": "http://astrothesaurus.org/uat/1839"}]}, {"name": "Meteor streams", "uri": "http://astrothesaurus.org/uat/1035"}, {"name": "Meteor trails", "uri": "http://astrothesaurus.org/uat/1036"}]}, {"name": "Micrometeoroids", "uri": "http://astrothesaurus.org/uat/1048"}]}, {"name": "Natural satellites (Solar system)", "uri": "http://astrothesaurus.org/uat/1089", "children": [{"name": "Asteroid satellites", "uri": "http://astrothesaurus.org/uat/2207"}, {"name": "Irregular satellites", "uri": "http://astrothesaurus.org/uat/2027"}, {"name": "Jovian satellites", "uri": "http://astrothesaurus.org/uat/872", "children": [{"name": "Galilean satellites", "uri": "http://astrothesaurus.org/uat/627", "children": [{"name": "Callisto", "uri": "http://astrothesaurus.org/uat/2279"}, {"name": "Europa", "uri": "http://astrothesaurus.org/uat/2189"}, {"name": "Ganymede", "uri": "http://astrothesaurus.org/uat/2188"}, {"name": "Io", "uri": "http://astrothesaurus.org/uat/2190"}]}]}, {"name": "Martian satellites", "uri": "http://astrothesaurus.org/uat/1009"}, {"name": "Neptunian satellites", "uri": "http://astrothesaurus.org/uat/1098", "children": [{"name": "Triton", "uri": "http://astrothesaurus.org/uat/2187"}]}, {"name": "Plutonian satellites", "uri": "http://astrothesaurus.org/uat/2202"}, {"name": "Saturnian satellites", "uri": "http://astrothesaurus.org/uat/1427", "children": [{"name": "Enceladus", "uri": "http://astrothesaurus.org/uat/2280"}, {"name": "Titan", "uri": "http://astrothesaurus.org/uat/2186"}]}, {"name": "The Moon", "uri": "http://astrothesaurus.org/uat/1692"}, {"name": "Uranian satellites", "uri": "http://astrothesaurus.org/uat/1750"}]}, {"name": "Oort cloud", "uri": "http://astrothesaurus.org/uat/1157", "children": [{"name": "Oort cloud objects", "uri": "http://astrothesaurus.org/uat/1158"}]}, {"name": "Planetary rings", "uri": "http://astrothesaurus.org/uat/1254", "children": [{"name": "Ansae", "uri": "http://astrothesaurus.org/uat/45"}, {"name": "Planetary ring divisions", "uri": "http://astrothesaurus.org/uat/1253"}, {"name": "Ring resonance", "uri": "http://astrothesaurus.org/uat/2295"}, {"name": "Shepherd satellites", "uri": "http://astrothesaurus.org/uat/1451"}, {"name": "Spokes", "uri": "http://astrothesaurus.org/uat/1562"}]}, {"name": "Small Solar System bodies", "uri": "http://astrothesaurus.org/uat/1469", "children": [{"name": "Asteroids", "uri": "http://astrothesaurus.org/uat/72", "children": [{"name": "Asteroid satellites", "uri": "http://astrothesaurus.org/uat/2207"}, {"name": "Asteroid surfaces", "uri": "http://astrothesaurus.org/uat/2209"}, {"name": "Centaur group", "uri": "http://astrothesaurus.org/uat/215"}, {"name": "Hilda group", "uri": "http://astrothesaurus.org/uat/741"}, {"name": "Hirayama families", "uri": "http://astrothesaurus.org/uat/742"}, {"name": "Hungaria group", "uri": "http://astrothesaurus.org/uat/765"}, {"name": "Main belt asteroids", "uri": "http://astrothesaurus.org/uat/2036", "children": [{"name": "Ceres", "uri": "http://astrothesaurus.org/uat/219"}, {"name": "Pallas", "uri": "http://astrothesaurus.org/uat/2317"}, {"name": "Vesta", "uri": "http://astrothesaurus.org/uat/2183"}]}, {"name": "Trojan asteroids", "uri": "http://astrothesaurus.org/uat/1715", "children": [{"name": "Earth trojans", "uri": "http://astrothesaurus.org/uat/438"}, {"name": "Jupiter trojans", "uri": "http://astrothesaurus.org/uat/874"}, {"name": "Mars trojans", "uri": "http://astrothesaurus.org/uat/1008"}, {"name": "Neptune trojans", "uri": "http://astrothesaurus.org/uat/1097"}]}]}, {"name": "Comets", "uri": "http://astrothesaurus.org/uat/280", "children": [{"name": "Comae", "uri": "http://astrothesaurus.org/uat/271", "children": [{"name": "Coma dust", "uri": "http://astrothesaurus.org/uat/2159"}, {"name": "Ionized coma gases", "uri": "http://astrothesaurus.org/uat/277"}, {"name": "Neutral coma gases", "uri": "http://astrothesaurus.org/uat/2158"}]}, {"name": "Comet Halley", "uri": "http://astrothesaurus.org/uat/2181"}, {"name": "Comet nuclei", "uri": "http://astrothesaurus.org/uat/2160", "children": [{"name": "Comet interiors", "uri": "http://astrothesaurus.org/uat/272"}, {"name": "Comet surfaces", "uri": "http://astrothesaurus.org/uat/2161"}, {"name": "Comet volatiles ", "uri": "http://astrothesaurus.org/uat/2162"}]}, {"name": "Comet tails", "uri": "http://astrothesaurus.org/uat/274", "children": [{"name": "Comet dust tails", "uri": "http://astrothesaurus.org/uat/2312"}, {"name": "Comet ion tails", "uri": "http://astrothesaurus.org/uat/2313"}, {"name": "Comet tail streamers", "uri": "http://astrothesaurus.org/uat/273"}]}, {"name": "Dirty snowball model", "uri": "http://astrothesaurus.org/uat/388"}, {"name": "Long period comets", "uri": "http://astrothesaurus.org/uat/933", "children": [{"name": "Oort cloud", "uri": "http://astrothesaurus.org/uat/1157", "children": [{"name": "Oort cloud objects", "uri": "http://astrothesaurus.org/uat/1158"}]}]}, {"name": "Main-belt comets", "uri": "http://astrothesaurus.org/uat/2131"}, {"name": "Near-sun comets", "uri": "http://astrothesaurus.org/uat/2195", "children": [{"name": "Sundivers", "uri": "http://astrothesaurus.org/uat/2196"}, {"name": "Sungrazers", "uri": "http://astrothesaurus.org/uat/2197", "children": [{"name": "Kreutz group", "uri": "http://astrothesaurus.org/uat/890"}]}, {"name": "Sunskirters", "uri": "http://astrothesaurus.org/uat/2198", "children": [{"name": "Kracht group", "uri": "http://astrothesaurus.org/uat/2199"}, {"name": "Marsden group", "uri": "http://astrothesaurus.org/uat/2201"}, {"name": "Meyer group", "uri": "http://astrothesaurus.org/uat/2200"}]}]}, {"name": "Short period comets", "uri": "http://astrothesaurus.org/uat/1452"}]}, {"name": "Interstellar objects", "uri": "http://astrothesaurus.org/uat/52"}, {"name": "Near-Earth objects", "uri": "http://astrothesaurus.org/uat/1092", "children": [{"name": "Amor group", "uri": "http://astrothesaurus.org/uat/36", "children": [{"name": "Eros", "uri": "http://astrothesaurus.org/uat/2182"}]}, {"name": "Apollo group", "uri": "http://astrothesaurus.org/uat/58"}, {"name": "Aten group", "uri": "http://astrothesaurus.org/uat/110"}, {"name": "Atira group", "uri": "http://astrothesaurus.org/uat/111"}, {"name": "Earth trojans", "uri": "http://astrothesaurus.org/uat/438"}]}, {"name": "Trans-Neptunian objects", "uri": "http://astrothesaurus.org/uat/1705", "children": [{"name": "Classical Kuiper belt objects", "uri": "http://astrothesaurus.org/uat/250"}, {"name": "Detached objects", "uri": "http://astrothesaurus.org/uat/376"}, {"name": "Neptune trojans", "uri": "http://astrothesaurus.org/uat/1097"}, {"name": "Plutoids", "uri": "http://astrothesaurus.org/uat/1268"}, {"name": "Resonant Kuiper belt objects", "uri": "http://astrothesaurus.org/uat/1396", "children": [{"name": "Plutinos", "uri": "http://astrothesaurus.org/uat/1266"}, {"name": "Scattered disk objects", "uri": "http://astrothesaurus.org/uat/1430"}, {"name": "Twotinos", "uri": "http://astrothesaurus.org/uat/1727"}]}]}]}, {"name": "Solar neighborhood", "uri": "http://astrothesaurus.org/uat/1509"}, {"name": "Solar system planets", "uri": "http://astrothesaurus.org/uat/1260", "children": [{"name": "Solar system gas giant planets", "uri": "http://astrothesaurus.org/uat/1191", "children": [{"name": "Jupiter", "uri": "http://astrothesaurus.org/uat/873"}, {"name": "Neptune", "uri": "http://astrothesaurus.org/uat/1096"}, {"name": "Saturn", "uri": "http://astrothesaurus.org/uat/1426"}, {"name": "Uranus", "uri": "http://astrothesaurus.org/uat/1751"}]}, {"name": "Solar system terrestrial planets", "uri": "http://astrothesaurus.org/uat/797", "children": [{"name": "Earth (planet)", "uri": "http://astrothesaurus.org/uat/439"}, {"name": "Mars", "uri": "http://astrothesaurus.org/uat/1007"}, {"name": "Mercury (planet)", "uri": "http://astrothesaurus.org/uat/1024"}, {"name": "Venus", "uri": "http://astrothesaurus.org/uat/1763"}]}]}, {"name": "Space weather", "uri": "http://astrothesaurus.org/uat/2037"}, {"name": "The Moon", "uri": "http://astrothesaurus.org/uat/1692"}, {"name": "The Sun", "uri": "http://astrothesaurus.org/uat/1693"}]}]}, {"name": "Stellar astronomy", "uri": "http://astrothesaurus.org/uat/1583", "children": [{"name": "Asteroseismology", "uri": "http://astrothesaurus.org/uat/73", "children": [{"name": "Oblique rotators", "uri": "http://astrothesaurus.org/uat/1144"}, {"name": "Stellar magnetic fields", "uri": "http://astrothesaurus.org/uat/1610"}, {"name": "Stellar oscillations", "uri": "http://astrothesaurus.org/uat/1617", "children": [{"name": "Rapid stellar oscillations", "uri": "http://astrothesaurus.org/uat/1363"}]}]}, {"name": "Circumstellar matter", "uri": "http://astrothesaurus.org/uat/241", "children": [{"name": "Circumstellar clouds", "uri": "http://astrothesaurus.org/uat/234"}, {"name": "Circumstellar disks", "uri": "http://astrothesaurus.org/uat/235", "children": [{"name": "Debris disks", "uri": "http://astrothesaurus.org/uat/363", "children": [{"name": "Exozodiacal dust", "uri": "http://astrothesaurus.org/uat/500"}, {"name": "Planetesimals", "uri": "http://astrothesaurus.org/uat/1259"}]}, {"name": "Protoplanetary disks", "uri": "http://astrothesaurus.org/uat/1300", "children": [{"name": "Planetesimals", "uri": "http://astrothesaurus.org/uat/1259"}, {"name": "Proplyds", "uri": "http://astrothesaurus.org/uat/1296"}]}]}, {"name": "Circumstellar dust", "uri": "http://astrothesaurus.org/uat/236"}, {"name": "Circumstellar envelopes", "uri": "http://astrothesaurus.org/uat/237"}, {"name": "Circumstellar gas", "uri": "http://astrothesaurus.org/uat/238"}, {"name": "Circumstellar grains", "uri": "http://astrothesaurus.org/uat/239"}, {"name": "Circumstellar masers", "uri": "http://astrothesaurus.org/uat/240"}, {"name": "Circumstellar shells", "uri": "http://astrothesaurus.org/uat/242", "children": [{"name": "Dust shells", "uri": "http://astrothesaurus.org/uat/414"}, {"name": "Rotating shells", "uri": "http://astrothesaurus.org/uat/1407"}, {"name": "Shell burning", "uri": "http://astrothesaurus.org/uat/1450"}]}]}, {"name": "Galactic archaeology", "uri": "http://astrothesaurus.org/uat/2178"}, {"name": "Star clusters", "uri": "http://astrothesaurus.org/uat/1567", "children": [{"name": "Globular star clusters", "uri": "http://astrothesaurus.org/uat/656"}, {"name": "Moving clusters", "uri": "http://astrothesaurus.org/uat/1076"}, {"name": "Open star clusters", "uri": "http://astrothesaurus.org/uat/1160", "children": [{"name": "O clusters", "uri": "http://astrothesaurus.org/uat/1134"}, {"name": "Young star clusters", "uri": "http://astrothesaurus.org/uat/1833"}]}, {"name": "Protoclusters", "uri": "http://astrothesaurus.org/uat/1297"}, {"name": "Stellar associations", "uri": "http://astrothesaurus.org/uat/1582", "children": [{"name": "O associations", "uri": "http://astrothesaurus.org/uat/1133"}, {"name": "OB associations", "uri": "http://astrothesaurus.org/uat/1140"}, {"name": "R associations", "uri": "http://astrothesaurus.org/uat/1325"}, {"name": "T associations", "uri": "http://astrothesaurus.org/uat/1678"}]}, {"name": "Young massive clusters", "uri": "http://astrothesaurus.org/uat/2049"}]}, {"name": "Stellar physics", "uri": "http://astrothesaurus.org/uat/1621", "children": [{"name": "Star formation", "uri": "http://astrothesaurus.org/uat/1569", "children": [{"name": "Star forming regions", "uri": "http://astrothesaurus.org/uat/1565"}]}, {"name": "Starspots", "uri": "http://astrothesaurus.org/uat/1572"}, {"name": "Stellar abundances", "uri": "http://astrothesaurus.org/uat/1577"}, {"name": "Stellar atmospheres", "uri": "http://astrothesaurus.org/uat/1584", "children": [{"name": "Stellar chromospheres", "uri": "http://astrothesaurus.org/uat/230"}, {"name": "Stellar coronae", "uri": "http://astrothesaurus.org/uat/305", "children": [{"name": "Stellar E corona", "uri": "http://astrothesaurus.org/uat/426"}, {"name": "Stellar F corona", "uri": "http://astrothesaurus.org/uat/515"}, {"name": "Stellar K corona", "uri": "http://astrothesaurus.org/uat/875"}, {"name": "Stellar coronal dimming", "uri": "http://astrothesaurus.org/uat/306"}, {"name": "Stellar coronal holes", "uri": "http://astrothesaurus.org/uat/307"}, {"name": "Stellar coronal lines", "uri": "http://astrothesaurus.org/uat/308"}, {"name": "Stellar coronal loops", "uri": "http://astrothesaurus.org/uat/309"}, {"name": "Stellar coronal plumes", "uri": "http://astrothesaurus.org/uat/311"}]}, {"name": "Stellar photospheres", "uri": "http://astrothesaurus.org/uat/1237", "children": [{"name": "Stellar faculae", "uri": "http://astrothesaurus.org/uat/1601"}, {"name": "Stellar granules", "uri": "http://astrothesaurus.org/uat/659"}]}]}, {"name": "Stellar dynamics", "uri": "http://astrothesaurus.org/uat/1596", "children": [{"name": "Supernova dynamics", "uri": "http://astrothesaurus.org/uat/1664"}]}, {"name": "Stellar evolution", "uri": "http://astrothesaurus.org/uat/1599", "children": [{"name": "Carbon flashes", "uri": "http://astrothesaurus.org/uat/197"}, {"name": "Early stellar evolution", "uri": "http://astrothesaurus.org/uat/434"}, {"name": "Eruptive phenomena", "uri": "http://astrothesaurus.org/uat/475"}, {"name": "Helmholtz-Kelvin contraction", "uri": "http://astrothesaurus.org/uat/718"}, {"name": "Initial mass function", "uri": "http://astrothesaurus.org/uat/796"}, {"name": "Late stellar evolution", "uri": "http://astrothesaurus.org/uat/911", "children": [{"name": "Dredge-up", "uri": "http://astrothesaurus.org/uat/409"}, {"name": "Stellar accretion disks", "uri": "http://astrothesaurus.org/uat/1579"}]}, {"name": "Multiple star evolution", "uri": "http://astrothesaurus.org/uat/2153", "children": [{"name": "Common envelope evolution", "uri": "http://astrothesaurus.org/uat/2154"}, {"name": "Roche lobe overflow", "uri": "http://astrothesaurus.org/uat/2155"}]}, {"name": "Nonstandard evolution", "uri": "http://astrothesaurus.org/uat/1122"}]}, {"name": "Stellar granulation", "uri": "http://astrothesaurus.org/uat/2102"}, {"name": "Stellar phenomena", "uri": "http://astrothesaurus.org/uat/1619", "children": [{"name": "Astrosphere interstellar medium interactions", "uri": "http://astrothesaurus.org/uat/106"}, {"name": "Burst astrophysics", "uri": "http://astrothesaurus.org/uat/187", "children": [{"name": "Gamma-ray bursts", "uri": "http://astrothesaurus.org/uat/629"}, {"name": "Optical bursts", "uri": "http://astrothesaurus.org/uat/1164"}, {"name": "Radio bursts", "uri": "http://astrothesaurus.org/uat/1339"}, {"name": "Rapid bursts", "uri": "http://astrothesaurus.org/uat/1362"}, {"name": "X-ray bursts", "uri": "http://astrothesaurus.org/uat/1814"}]}, {"name": "Stellar coronal mass ejections", "uri": "http://astrothesaurus.org/uat/1881"}, {"name": "Stellar flares", "uri": "http://astrothesaurus.org/uat/1603", "children": [{"name": "Disk flaring", "uri": "http://astrothesaurus.org/uat/390"}, {"name": "Optical flares", "uri": "http://astrothesaurus.org/uat/1166"}, {"name": "Stellar x-ray flares", "uri": "http://astrothesaurus.org/uat/1637"}]}, {"name": "Stellar mass loss", "uri": "http://astrothesaurus.org/uat/1613", "children": [{"name": "Plasma jets", "uri": "http://astrothesaurus.org/uat/1263"}]}, {"name": "Stellar pulsations", "uri": "http://astrothesaurus.org/uat/1625", "children": [{"name": "Multi-periodic pulsation", "uri": "http://astrothesaurus.org/uat/1078", "children": [{"name": "Double-mode pulsation", "uri": "http://astrothesaurus.org/uat/403"}]}, {"name": "Non-radial pulsations", "uri": "http://astrothesaurus.org/uat/1117"}, {"name": "Pulsation modes", "uri": "http://astrothesaurus.org/uat/1309"}, {"name": "Radial pulsations", "uri": "http://astrothesaurus.org/uat/1331"}]}]}, {"name": "Stellar processes", "uri": "http://astrothesaurus.org/uat/1623", "children": [{"name": "Stellar diffusion", "uri": "http://astrothesaurus.org/uat/1593"}]}, {"name": "Stellar properties", "uri": "http://astrothesaurus.org/uat/1624", "children": [{"name": "Expanding stellar envelopes", "uri": "http://astrothesaurus.org/uat/501"}, {"name": "Starlight polarization", "uri": "http://astrothesaurus.org/uat/1571"}, {"name": "Stellar accretion", "uri": "http://astrothesaurus.org/uat/1578"}, {"name": "Stellar activity", "uri": "http://astrothesaurus.org/uat/1580"}, {"name": "Stellar ages", "uri": "http://astrothesaurus.org/uat/1581"}, {"name": "Stellar colors", "uri": "http://astrothesaurus.org/uat/1590"}, {"name": "Stellar effective temperatures", "uri": "http://astrothesaurus.org/uat/1597"}, {"name": "Stellar luminosities", "uri": "http://astrothesaurus.org/uat/1609"}, {"name": "Stellar magnetic fields", "uri": "http://astrothesaurus.org/uat/1610"}, {"name": "Stellar mass functions", "uri": "http://astrothesaurus.org/uat/1612"}, {"name": "Stellar masses", "uri": "http://astrothesaurus.org/uat/1614"}, {"name": "Stellar oscillations", "uri": "http://astrothesaurus.org/uat/1617", "children": [{"name": "Rapid stellar oscillations", "uri": "http://astrothesaurus.org/uat/1363"}]}, {"name": "Stellar radii", "uri": "http://astrothesaurus.org/uat/1626"}, {"name": "Stellar rotation", "uri": "http://astrothesaurus.org/uat/1629", "children": [{"name": "Gravity darkening", "uri": "http://astrothesaurus.org/uat/680"}, {"name": "Radiative braking", "uri": "http://astrothesaurus.org/uat/1334"}]}, {"name": "Stellar spectral lines", "uri": "http://astrothesaurus.org/uat/1630"}]}, {"name": "Stellar structures", "uri": "http://astrothesaurus.org/uat/1631", "children": [{"name": "Circumstellar shells", "uri": "http://astrothesaurus.org/uat/242", "children": [{"name": "Dust shells", "uri": "http://astrothesaurus.org/uat/414"}, {"name": "Rotating shells", "uri": "http://astrothesaurus.org/uat/1407"}, {"name": "Shell burning", "uri": "http://astrothesaurus.org/uat/1450"}]}, {"name": "Polytropes", "uri": "http://astrothesaurus.org/uat/1281"}, {"name": "Stellar convection envelopes", "uri": "http://astrothesaurus.org/uat/299", "children": [{"name": "Stellar convective shells", "uri": "http://astrothesaurus.org/uat/300"}]}, {"name": "Stellar convective zones", "uri": "http://astrothesaurus.org/uat/301"}, {"name": "Stellar gas distribution", "uri": "http://astrothesaurus.org/uat/1604"}, {"name": "Stellar interiors", "uri": "http://astrothesaurus.org/uat/1606", "children": [{"name": "Stellar cores", "uri": "http://astrothesaurus.org/uat/1592", "children": [{"name": "Stellar inner cores", "uri": "http://astrothesaurus.org/uat/1605"}]}]}, {"name": "Stellar surfaces", "uri": "http://astrothesaurus.org/uat/1632"}, {"name": "Str\u00f6mgren spheres", "uri": "http://astrothesaurus.org/uat/1642"}]}, {"name": "Stellar winds", "uri": "http://astrothesaurus.org/uat/1636"}]}, {"name": "Stellar populations", "uri": "http://astrothesaurus.org/uat/1622", "children": [{"name": "Population I stars", "uri": "http://astrothesaurus.org/uat/1282"}, {"name": "Population II stars", "uri": "http://astrothesaurus.org/uat/1284", "children": [{"name": "Population II Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/1283"}]}, {"name": "Population III stars", "uri": "http://astrothesaurus.org/uat/1285"}]}, {"name": "Stellar remnants", "uri": "http://astrothesaurus.org/uat/1627", "children": [{"name": "AM Herculis stars", "uri": "http://astrothesaurus.org/uat/32"}, {"name": "Compact objects", "uri": "http://astrothesaurus.org/uat/288", "children": [{"name": "Black holes", "uri": "http://astrothesaurus.org/uat/162", "children": [{"name": "Astrophysical black holes", "uri": "http://astrothesaurus.org/uat/98", "children": [{"name": "Intermediate-mass black holes", "uri": "http://astrothesaurus.org/uat/816"}, {"name": "Primordial black holes", "uri": "http://astrothesaurus.org/uat/1292"}, {"name": "Stellar mass black holes", "uri": "http://astrothesaurus.org/uat/1611"}, {"name": "Supermassive black holes", "uri": "http://astrothesaurus.org/uat/1663", "children": [{"name": "Quasars", "uri": "http://astrothesaurus.org/uat/1319", "children": [{"name": "Broad-absorption line quasar", "uri": "http://astrothesaurus.org/uat/183"}, {"name": "Double quasars", "uri": "http://astrothesaurus.org/uat/406"}, {"name": "Quasar-galaxy pairs", "uri": "http://astrothesaurus.org/uat/1316"}, {"name": "Radio loud quasars", "uri": "http://astrothesaurus.org/uat/1349"}, {"name": "Radio quiet quasars", "uri": "http://astrothesaurus.org/uat/1354"}, {"name": "X-ray quasars", "uri": "http://astrothesaurus.org/uat/1821"}]}]}]}, {"name": "Classical black holes", "uri": "http://astrothesaurus.org/uat/249", "children": [{"name": "Charged black holes", "uri": "http://astrothesaurus.org/uat/223", "children": [{"name": "Kerr-Newman black holes", "uri": "http://astrothesaurus.org/uat/885"}, {"name": "Reissner-Nordstr\u00f6m black holes", "uri": "http://astrothesaurus.org/uat/1384"}]}, {"name": "Nonrotating black holes", "uri": "http://astrothesaurus.org/uat/1121", "children": [{"name": "Reissner-Nordstr\u00f6m black holes", "uri": "http://astrothesaurus.org/uat/1384"}, {"name": "Schwarzschild black holes", "uri": "http://astrothesaurus.org/uat/1433"}]}, {"name": "Rotating black holes", "uri": "http://astrothesaurus.org/uat/1406", "children": [{"name": "Kerr black holes", "uri": "http://astrothesaurus.org/uat/886", "children": [{"name": "Maximal Kerr black holes", "uri": "http://astrothesaurus.org/uat/1016"}]}, {"name": "Kerr-Newman black holes", "uri": "http://astrothesaurus.org/uat/885"}]}, {"name": "Uncharged black holes", "uri": "http://astrothesaurus.org/uat/1746", "children": [{"name": "Kerr black holes", "uri": "http://astrothesaurus.org/uat/886", "children": [{"name": "Maximal Kerr black holes", "uri": "http://astrothesaurus.org/uat/1016"}]}, {"name": "Schwarzschild black holes", "uri": "http://astrothesaurus.org/uat/1433"}]}]}]}, {"name": "Neutron stars", "uri": "http://astrothesaurus.org/uat/1108", "children": [{"name": "Magnetars", "uri": "http://astrothesaurus.org/uat/992", "children": [{"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}]}, {"name": "Neutron star cores", "uri": "http://astrothesaurus.org/uat/1107"}, {"name": "Pulsars", "uri": "http://astrothesaurus.org/uat/1306", "children": [{"name": "Binary pulsars", "uri": "http://astrothesaurus.org/uat/153"}, {"name": "Millisecond pulsars", "uri": "http://astrothesaurus.org/uat/1062"}, {"name": "Optical pulsars", "uri": "http://astrothesaurus.org/uat/1173"}, {"name": "Radio pulsars", "uri": "http://astrothesaurus.org/uat/1353"}, {"name": "Rotation powered pulsars", "uri": "http://astrothesaurus.org/uat/1408"}]}, {"name": "Relativistic stars", "uri": "http://astrothesaurus.org/uat/1392", "children": [{"name": "Relativistic binary stars", "uri": "http://astrothesaurus.org/uat/1386"}]}]}, {"name": "White dwarf stars", "uri": "http://astrothesaurus.org/uat/1799", "children": [{"name": "DA stars", "uri": "http://astrothesaurus.org/uat/348"}, {"name": "DB stars", "uri": "http://astrothesaurus.org/uat/358"}, {"name": "DC stars", "uri": "http://astrothesaurus.org/uat/0"}, {"name": "DO stars", "uri": "http://astrothesaurus.org/uat/397", "children": [{"name": "PG 1159 stars", "uri": "http://astrothesaurus.org/uat/1216"}]}, {"name": "DQ stars", "uri": "http://astrothesaurus.org/uat/1849"}, {"name": "DZ stars", "uri": "http://astrothesaurus.org/uat/1848"}, {"name": "ZZ Ceti stars", "uri": "http://astrothesaurus.org/uat/1847"}]}]}, {"name": "Degenerate matter", "uri": "http://astrothesaurus.org/uat/367"}, {"name": "Ejecta", "uri": "http://astrothesaurus.org/uat/453"}, {"name": "Nova-like variable stars", "uri": "http://astrothesaurus.org/uat/1126", "children": [{"name": "UX Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1757"}, {"name": "VY Sculptoris stars", "uri": "http://astrothesaurus.org/uat/1782"}]}, {"name": "Novae", "uri": "http://astrothesaurus.org/uat/1127", "children": [{"name": "Classical novae", "uri": "http://astrothesaurus.org/uat/251"}, {"name": "DQ Herculis stars", "uri": "http://astrothesaurus.org/uat/407"}, {"name": "Dwarf novae", "uri": "http://astrothesaurus.org/uat/418", "children": [{"name": "SU Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1645"}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}, {"name": "U Geminorum stars", "uri": "http://astrothesaurus.org/uat/1732"}, {"name": "WZ Sagittae stars", "uri": "http://astrothesaurus.org/uat/1809"}, {"name": "Z Camelopardalis stars", "uri": "http://astrothesaurus.org/uat/1836"}]}, {"name": "Fast novae", "uri": "http://astrothesaurus.org/uat/530"}, {"name": "Recurrent novae", "uri": "http://astrothesaurus.org/uat/1366"}, {"name": "Slow novae", "uri": "http://astrothesaurus.org/uat/1467"}, {"name": "Symbiotic novae", "uri": "http://astrothesaurus.org/uat/1675"}, {"name": "X-ray novae", "uri": "http://astrothesaurus.org/uat/1818"}]}, {"name": "Supernovae", "uri": "http://astrothesaurus.org/uat/1668", "children": [{"name": "Core-collapse supernovae", "uri": "http://astrothesaurus.org/uat/304", "children": [{"name": "Type II supernovae", "uri": "http://astrothesaurus.org/uat/1731"}, {"name": "Type Ib supernovae", "uri": "http://astrothesaurus.org/uat/1729"}, {"name": "Type Ic supernovae", "uri": "http://astrothesaurus.org/uat/1730"}]}, {"name": "Hypernovae", "uri": "http://astrothesaurus.org/uat/775"}, {"name": "Type Ia supernovae", "uri": "http://astrothesaurus.org/uat/1728"}]}]}, {"name": "Stellar types", "uri": "http://astrothesaurus.org/uat/1634", "children": [{"name": "Chemically peculiar stars", "uri": "http://astrothesaurus.org/uat/226", "children": [{"name": "Am stars", "uri": "http://astrothesaurus.org/uat/33"}, {"name": "Ap stars", "uri": "http://astrothesaurus.org/uat/50", "children": [{"name": "Holmium stars", "uri": "http://astrothesaurus.org/uat/744"}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "Rapidly oscillating Ap star", "uri": "http://astrothesaurus.org/uat/27"}, {"name": "Silicon stars", "uri": "http://astrothesaurus.org/uat/1459"}]}, {"name": "Bp stars", "uri": "http://astrothesaurus.org/uat/178"}, {"name": "CEMP stars", "uri": "http://astrothesaurus.org/uat/2105"}, {"name": "Carbon stars", "uri": "http://astrothesaurus.org/uat/199", "children": [{"name": "N stars", "uri": "http://astrothesaurus.org/uat/1085"}, {"name": "R stars", "uri": "http://astrothesaurus.org/uat/1328"}]}, {"name": "Chemically peculiar giant stars", "uri": "http://astrothesaurus.org/uat/1201"}, {"name": "Heavy metal stars", "uri": "http://astrothesaurus.org/uat/705", "children": [{"name": "Barium stars", "uri": "http://astrothesaurus.org/uat/135", "children": [{"name": "Semi-barium stars", "uri": "http://astrothesaurus.org/uat/1442"}]}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "S stars", "uri": "http://astrothesaurus.org/uat/1421", "children": [{"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}, {"name": "Strontium stars", "uri": "http://astrothesaurus.org/uat/1644"}, {"name": "Technetium stars", "uri": "http://astrothesaurus.org/uat/1683"}]}, {"name": "Helium-rich stars", "uri": "http://astrothesaurus.org/uat/715", "children": [{"name": "DB stars", "uri": "http://astrothesaurus.org/uat/358"}]}, {"name": "Helium-weak stars", "uri": "http://astrothesaurus.org/uat/717", "children": [{"name": "BW stars", "uri": "http://astrothesaurus.org/uat/189"}]}, {"name": "Hydrogen deficient stars", "uri": "http://astrothesaurus.org/uat/769", "children": [{"name": "AM Canum Venaticorum stars", "uri": "http://astrothesaurus.org/uat/31"}]}, {"name": "Lithium stars", "uri": "http://astrothesaurus.org/uat/927"}, {"name": "Magnetic stars", "uri": "http://astrothesaurus.org/uat/995", "children": [{"name": "Am stars", "uri": "http://astrothesaurus.org/uat/33"}, {"name": "Bp stars", "uri": "http://astrothesaurus.org/uat/178"}, {"name": "Magnetars", "uri": "http://astrothesaurus.org/uat/992", "children": [{"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}]}, {"name": "Magnetic variable stars", "uri": "http://astrothesaurus.org/uat/996", "children": [{"name": "Am stars", "uri": "http://astrothesaurus.org/uat/33"}, {"name": "Rapidly oscillating Ap star", "uri": "http://astrothesaurus.org/uat/27"}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}]}, {"name": "Mercury-manganese stars", "uri": "http://astrothesaurus.org/uat/1025"}]}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "Mercury-manganese stars", "uri": "http://astrothesaurus.org/uat/1025"}, {"name": "Peculiar variable stars", "uri": "http://astrothesaurus.org/uat/1202"}, {"name": "Shell stars", "uri": "http://astrothesaurus.org/uat/1850"}, {"name": "Strontium stars", "uri": "http://astrothesaurus.org/uat/1644"}, {"name": "Technetium stars", "uri": "http://astrothesaurus.org/uat/1683"}, {"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}, {"name": "Early-type stars", "uri": "http://astrothesaurus.org/uat/430", "children": [{"name": "A stars", "uri": "http://astrothesaurus.org/uat/5", "children": [{"name": "A dwarf stars", "uri": "http://astrothesaurus.org/uat/3"}, {"name": "A giant stars", "uri": "http://astrothesaurus.org/uat/4"}, {"name": "A subdwarf stars", "uri": "http://astrothesaurus.org/uat/6"}, {"name": "A subgiant stars", "uri": "http://astrothesaurus.org/uat/7"}, {"name": "A supergiant stars", "uri": "http://astrothesaurus.org/uat/8"}, {"name": "Ae stars", "uri": "http://astrothesaurus.org/uat/20", "children": [{"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}]}, {"name": "Am stars", "uri": "http://astrothesaurus.org/uat/33"}, {"name": "Ap stars", "uri": "http://astrothesaurus.org/uat/50", "children": [{"name": "Holmium stars", "uri": "http://astrothesaurus.org/uat/744"}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "Rapidly oscillating Ap star", "uri": "http://astrothesaurus.org/uat/27"}, {"name": "Silicon stars", "uri": "http://astrothesaurus.org/uat/1459"}]}]}, {"name": "B stars", "uri": "http://astrothesaurus.org/uat/128", "children": [{"name": "53 Persei stars", "uri": "http://astrothesaurus.org/uat/2"}, {"name": "B dwarf stars", "uri": "http://astrothesaurus.org/uat/126"}, {"name": "B giant stars", "uri": "http://astrothesaurus.org/uat/127"}, {"name": "B subdwarf stars", "uri": "http://astrothesaurus.org/uat/129"}, {"name": "B subgiant stars", "uri": "http://astrothesaurus.org/uat/125"}, {"name": "B supergiant stars", "uri": "http://astrothesaurus.org/uat/130"}, {"name": "BW stars", "uri": "http://astrothesaurus.org/uat/189"}, {"name": "Be stars", "uri": "http://astrothesaurus.org/uat/142", "children": [{"name": "B(e) stars", "uri": "http://astrothesaurus.org/uat/2104"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Lambda Eridani stars", "uri": "http://astrothesaurus.org/uat/899"}]}, {"name": "Bp stars", "uri": "http://astrothesaurus.org/uat/178"}, {"name": "Mercury-manganese stars", "uri": "http://astrothesaurus.org/uat/1025"}]}, {"name": "Early-type emission stars", "uri": "http://astrothesaurus.org/uat/428", "children": [{"name": "Ae stars", "uri": "http://astrothesaurus.org/uat/20", "children": [{"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}]}, {"name": "Be stars", "uri": "http://astrothesaurus.org/uat/142", "children": [{"name": "B(e) stars", "uri": "http://astrothesaurus.org/uat/2104"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Lambda Eridani stars", "uri": "http://astrothesaurus.org/uat/899"}]}, {"name": "Oe stars", "uri": "http://astrothesaurus.org/uat/1153"}, {"name": "Oef stars", "uri": "http://astrothesaurus.org/uat/1154"}, {"name": "Of stars", "uri": "http://astrothesaurus.org/uat/1155"}, {"name": "Wolf-Rayet stars", "uri": "http://astrothesaurus.org/uat/1806", "children": [{"name": "WC stars", "uri": "http://astrothesaurus.org/uat/1793"}, {"name": "WCN stars", "uri": "http://astrothesaurus.org/uat/1794"}, {"name": "WN stars", "uri": "http://astrothesaurus.org/uat/1805"}]}]}, {"name": "Early-type supergiant stars", "uri": "http://astrothesaurus.org/uat/431", "children": [{"name": "A supergiant stars", "uri": "http://astrothesaurus.org/uat/8"}, {"name": "B supergiant stars", "uri": "http://astrothesaurus.org/uat/130"}, {"name": "O supergiant stars", "uri": "http://astrothesaurus.org/uat/1139"}, {"name": "OB supergiant stars", "uri": "http://astrothesaurus.org/uat/1142"}]}, {"name": "Early-type variable stars", "uri": "http://astrothesaurus.org/uat/432", "children": [{"name": "Beta Cephei variable stars", "uri": "http://astrothesaurus.org/uat/148"}, {"name": "Luminous blue variable stars", "uri": "http://astrothesaurus.org/uat/944", "children": [{"name": "S Doradus stars", "uri": "http://astrothesaurus.org/uat/1420"}]}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}]}, {"name": "Faint blue stars", "uri": "http://astrothesaurus.org/uat/525"}, {"name": "O stars", "uri": "http://astrothesaurus.org/uat/1137", "children": [{"name": "O dwarf stars", "uri": "http://astrothesaurus.org/uat/1135"}, {"name": "O giant stars", "uri": "http://astrothesaurus.org/uat/1136"}, {"name": "O subdwarf stars", "uri": "http://astrothesaurus.org/uat/1138"}, {"name": "O subgiant stars", "uri": "http://astrothesaurus.org/uat/1132"}, {"name": "O supergiant stars", "uri": "http://astrothesaurus.org/uat/1139"}, {"name": "Oe stars", "uri": "http://astrothesaurus.org/uat/1153"}, {"name": "Oef stars", "uri": "http://astrothesaurus.org/uat/1154"}, {"name": "Of stars", "uri": "http://astrothesaurus.org/uat/1155"}]}, {"name": "OB stars", "uri": "http://astrothesaurus.org/uat/1141", "children": [{"name": "OB supergiant stars", "uri": "http://astrothesaurus.org/uat/1142"}]}]}, {"name": "Emission line stars", "uri": "http://astrothesaurus.org/uat/460", "children": [{"name": "Be stars", "uri": "http://astrothesaurus.org/uat/142", "children": [{"name": "B(e) stars", "uri": "http://astrothesaurus.org/uat/2104"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Lambda Eridani stars", "uri": "http://astrothesaurus.org/uat/899"}]}, {"name": "Early-type emission stars", "uri": "http://astrothesaurus.org/uat/428", "children": [{"name": "Ae stars", "uri": "http://astrothesaurus.org/uat/20", "children": [{"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}]}, {"name": "Be stars", "uri": "http://astrothesaurus.org/uat/142", "children": [{"name": "B(e) stars", "uri": "http://astrothesaurus.org/uat/2104"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Lambda Eridani stars", "uri": "http://astrothesaurus.org/uat/899"}]}, {"name": "Oe stars", "uri": "http://astrothesaurus.org/uat/1153"}, {"name": "Oef stars", "uri": "http://astrothesaurus.org/uat/1154"}, {"name": "Of stars", "uri": "http://astrothesaurus.org/uat/1155"}, {"name": "Wolf-Rayet stars", "uri": "http://astrothesaurus.org/uat/1806", "children": [{"name": "WC stars", "uri": "http://astrothesaurus.org/uat/1793"}, {"name": "WCN stars", "uri": "http://astrothesaurus.org/uat/1794"}, {"name": "WN stars", "uri": "http://astrothesaurus.org/uat/1805"}]}]}, {"name": "FU Orionis stars", "uri": "http://astrothesaurus.org/uat/553"}, {"name": "Flash stars", "uri": "http://astrothesaurus.org/uat/542"}, {"name": "Gamma Cassiopeiae stars", "uri": "http://astrothesaurus.org/uat/635"}, {"name": "H-alpha stars", "uri": "http://astrothesaurus.org/uat/689"}, {"name": "Luminous blue variable stars", "uri": "http://astrothesaurus.org/uat/944", "children": [{"name": "S Doradus stars", "uri": "http://astrothesaurus.org/uat/1420"}]}, {"name": "Me stars", "uri": "http://astrothesaurus.org/uat/1017", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}, {"name": "Mira variable stars", "uri": "http://astrothesaurus.org/uat/1066"}, {"name": "S Doradus stars", "uri": "http://astrothesaurus.org/uat/1420"}, {"name": "Symbiotic binary stars", "uri": "http://astrothesaurus.org/uat/1674", "children": [{"name": "Symbiotic novae", "uri": "http://astrothesaurus.org/uat/1675"}, {"name": "Z Andromedae stars", "uri": "http://astrothesaurus.org/uat/1835"}]}, {"name": "T Tauri stars", "uri": "http://astrothesaurus.org/uat/1681", "children": [{"name": "Classical T Tauri stars", "uri": "http://astrothesaurus.org/uat/252"}, {"name": "Weak-line T Tauri stars", "uri": "http://astrothesaurus.org/uat/1795"}]}, {"name": "X-ray stars", "uri": "http://astrothesaurus.org/uat/1823", "children": [{"name": "Single x-ray stars", "uri": "http://astrothesaurus.org/uat/1461"}]}, {"name": "Z Andromedae stars", "uri": "http://astrothesaurus.org/uat/1835"}]}, {"name": "Field stars", "uri": "http://astrothesaurus.org/uat/2103"}, {"name": "Intermediate-type stars", "uri": "http://astrothesaurus.org/uat/818", "children": [{"name": "F stars", "uri": "http://astrothesaurus.org/uat/519", "children": [{"name": "F dwarf stars", "uri": "http://astrothesaurus.org/uat/516"}, {"name": "F giant stars", "uri": "http://astrothesaurus.org/uat/517"}, {"name": "F subdwarf stars", "uri": "http://astrothesaurus.org/uat/520"}, {"name": "F subgiant stars", "uri": "http://astrothesaurus.org/uat/521"}, {"name": "F supergiant stars", "uri": "http://astrothesaurus.org/uat/522", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}]}, {"name": "G stars", "uri": "http://astrothesaurus.org/uat/558", "children": [{"name": "G dwarf stars", "uri": "http://astrothesaurus.org/uat/556"}, {"name": "G giant stars", "uri": "http://astrothesaurus.org/uat/557"}, {"name": "G subdwarf stars", "uri": "http://astrothesaurus.org/uat/559"}, {"name": "G subgiant stars", "uri": "http://astrothesaurus.org/uat/560"}, {"name": "G supergiant stars", "uri": "http://astrothesaurus.org/uat/561"}]}]}, {"name": "Late-type stars", "uri": "http://astrothesaurus.org/uat/909", "children": [{"name": "K stars", "uri": "http://astrothesaurus.org/uat/878", "children": [{"name": "K dwarf stars", "uri": "http://astrothesaurus.org/uat/876"}, {"name": "K giant stars", "uri": "http://astrothesaurus.org/uat/877"}, {"name": "K subdwarf stars", "uri": "http://astrothesaurus.org/uat/879"}, {"name": "K subgiant stars", "uri": "http://astrothesaurus.org/uat/880"}, {"name": "K supergiant stars", "uri": "http://astrothesaurus.org/uat/881"}]}, {"name": "Late-type dwarf stars", "uri": "http://astrothesaurus.org/uat/906", "children": [{"name": "K dwarf stars", "uri": "http://astrothesaurus.org/uat/876"}, {"name": "L dwarfs", "uri": "http://astrothesaurus.org/uat/894"}, {"name": "M dwarf stars", "uri": "http://astrothesaurus.org/uat/982"}, {"name": "T dwarfs", "uri": "http://astrothesaurus.org/uat/1679"}]}, {"name": "Late-type giant stars", "uri": "http://astrothesaurus.org/uat/908", "children": [{"name": "Heavy metal stars", "uri": "http://astrothesaurus.org/uat/705", "children": [{"name": "Barium stars", "uri": "http://astrothesaurus.org/uat/135", "children": [{"name": "Semi-barium stars", "uri": "http://astrothesaurus.org/uat/1442"}]}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "S stars", "uri": "http://astrothesaurus.org/uat/1421", "children": [{"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}, {"name": "Strontium stars", "uri": "http://astrothesaurus.org/uat/1644"}, {"name": "Technetium stars", "uri": "http://astrothesaurus.org/uat/1683"}]}, {"name": "Irregular variable stars", "uri": "http://astrothesaurus.org/uat/865", "children": [{"name": "Lc variable stars", "uri": "http://astrothesaurus.org/uat/913"}, {"name": "R Coronae Borealis variable stars", "uri": "http://astrothesaurus.org/uat/1327"}, {"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}, {"name": "T Tauri stars", "uri": "http://astrothesaurus.org/uat/1681", "children": [{"name": "Classical T Tauri stars", "uri": "http://astrothesaurus.org/uat/252"}, {"name": "Weak-line T Tauri stars", "uri": "http://astrothesaurus.org/uat/1795"}]}]}, {"name": "K giant stars", "uri": "http://astrothesaurus.org/uat/877"}, {"name": "M giant stars", "uri": "http://astrothesaurus.org/uat/983", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}, {"name": "Mira variable stars", "uri": "http://astrothesaurus.org/uat/1066"}, {"name": "Semi-regular variable stars", "uri": "http://astrothesaurus.org/uat/1444", "children": [{"name": "SRS variable stars", "uri": "http://astrothesaurus.org/uat/2014"}, {"name": "SRa variable stars", "uri": "http://astrothesaurus.org/uat/2010"}, {"name": "SRb variable stars", "uri": "http://astrothesaurus.org/uat/2011"}, {"name": "SRc variable stars", "uri": "http://astrothesaurus.org/uat/2012"}, {"name": "SRd variable stars", "uri": "http://astrothesaurus.org/uat/2013", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}]}]}, {"name": "Late-type supergiant stars", "uri": "http://astrothesaurus.org/uat/910", "children": [{"name": "K supergiant stars", "uri": "http://astrothesaurus.org/uat/881"}, {"name": "M supergiant stars", "uri": "http://astrothesaurus.org/uat/988"}, {"name": "Red supergiant stars", "uri": "http://astrothesaurus.org/uat/1375"}]}, {"name": "M stars", "uri": "http://astrothesaurus.org/uat/985", "children": [{"name": "M dwarf stars", "uri": "http://astrothesaurus.org/uat/982"}, {"name": "M giant stars", "uri": "http://astrothesaurus.org/uat/983", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}, {"name": "M subdwarf stars", "uri": "http://astrothesaurus.org/uat/986"}, {"name": "M subgiant stars", "uri": "http://astrothesaurus.org/uat/987"}, {"name": "M supergiant stars", "uri": "http://astrothesaurus.org/uat/988"}, {"name": "Me stars", "uri": "http://astrothesaurus.org/uat/1017", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}]}, {"name": "N stars", "uri": "http://astrothesaurus.org/uat/1085"}, {"name": "R stars", "uri": "http://astrothesaurus.org/uat/1328"}, {"name": "S stars", "uri": "http://astrothesaurus.org/uat/1421", "children": [{"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}]}, {"name": "Low mass stars", "uri": "http://astrothesaurus.org/uat/2050"}, {"name": "Massive stars", "uri": "http://astrothesaurus.org/uat/732", "children": [{"name": "High mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/733"}]}, {"name": "Multiple stars", "uri": "http://astrothesaurus.org/uat/1081", "children": [{"name": "Binary stars", "uri": "http://astrothesaurus.org/uat/154", "children": [{"name": "Astrometric binary stars", "uri": "http://astrothesaurus.org/uat/79"}, {"name": "Close binary stars", "uri": "http://astrothesaurus.org/uat/254", "children": [{"name": "Compact binary stars", "uri": "http://astrothesaurus.org/uat/283", "children": [{"name": "Binary pulsars", "uri": "http://astrothesaurus.org/uat/153"}, {"name": "X-ray binary stars", "uri": "http://astrothesaurus.org/uat/1811", "children": [{"name": "High mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/733"}, {"name": "Low-mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/939", "children": [{"name": "Hz Herculis x-ray binary stars", "uri": "http://astrothesaurus.org/uat/777"}]}, {"name": "X-ray bursters", "uri": "http://astrothesaurus.org/uat/1813"}]}]}, {"name": "Ellipsoidal variable stars", "uri": "http://astrothesaurus.org/uat/455", "children": [{"name": "Beta Lyrae stars", "uri": "http://astrothesaurus.org/uat/149"}, {"name": "FK Comae stars", "uri": "http://astrothesaurus.org/uat/2015"}]}, {"name": "Interacting binary stars", "uri": "http://astrothesaurus.org/uat/801", "children": [{"name": "Common envelope binary stars", "uri": "http://astrothesaurus.org/uat/2156"}, {"name": "Compact binary stars", "uri": "http://astrothesaurus.org/uat/283", "children": [{"name": "Binary pulsars", "uri": "http://astrothesaurus.org/uat/153"}, {"name": "X-ray binary stars", "uri": "http://astrothesaurus.org/uat/1811", "children": [{"name": "High mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/733"}, {"name": "Low-mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/939", "children": [{"name": "Hz Herculis x-ray binary stars", "uri": "http://astrothesaurus.org/uat/777"}]}, {"name": "X-ray bursters", "uri": "http://astrothesaurus.org/uat/1813"}]}]}, {"name": "Contact binary stars", "uri": "http://astrothesaurus.org/uat/297", "children": [{"name": "W Ursae Majoris variable stars", "uri": "http://astrothesaurus.org/uat/1783"}]}, {"name": "Semi-detached binary stars", "uri": "http://astrothesaurus.org/uat/1443", "children": [{"name": "Algol variable stars", "uri": "http://astrothesaurus.org/uat/24"}, {"name": "Cataclysmic variable stars", "uri": "http://astrothesaurus.org/uat/203", "children": [{"name": "AM Canum Venaticorum stars", "uri": "http://astrothesaurus.org/uat/31"}, {"name": "AM Herculis stars", "uri": "http://astrothesaurus.org/uat/32"}, {"name": "Nova-like variable stars", "uri": "http://astrothesaurus.org/uat/1126", "children": [{"name": "UX Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1757"}, {"name": "VY Sculptoris stars", "uri": "http://astrothesaurus.org/uat/1782"}]}, {"name": "Novae", "uri": "http://astrothesaurus.org/uat/1127", "children": [{"name": "Classical novae", "uri": "http://astrothesaurus.org/uat/251"}, {"name": "DQ Herculis stars", "uri": "http://astrothesaurus.org/uat/407"}, {"name": "Dwarf novae", "uri": "http://astrothesaurus.org/uat/418", "children": [{"name": "SU Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1645"}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}, {"name": "U Geminorum stars", "uri": "http://astrothesaurus.org/uat/1732"}, {"name": "WZ Sagittae stars", "uri": "http://astrothesaurus.org/uat/1809"}, {"name": "Z Camelopardalis stars", "uri": "http://astrothesaurus.org/uat/1836"}]}, {"name": "Fast novae", "uri": "http://astrothesaurus.org/uat/530"}, {"name": "Recurrent novae", "uri": "http://astrothesaurus.org/uat/1366"}, {"name": "Slow novae", "uri": "http://astrothesaurus.org/uat/1467"}, {"name": "Symbiotic novae", "uri": "http://astrothesaurus.org/uat/1675"}, {"name": "X-ray novae", "uri": "http://astrothesaurus.org/uat/1818"}]}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}, {"name": "UV Persei stars", "uri": "http://astrothesaurus.org/uat/1756"}, {"name": "WZ Sagittae stars", "uri": "http://astrothesaurus.org/uat/1809"}]}, {"name": "X-ray binary stars", "uri": "http://astrothesaurus.org/uat/1811", "children": [{"name": "High mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/733"}, {"name": "Low-mass x-ray binary stars", "uri": "http://astrothesaurus.org/uat/939", "children": [{"name": "Hz Herculis x-ray binary stars", "uri": "http://astrothesaurus.org/uat/777"}]}, {"name": "X-ray bursters", "uri": "http://astrothesaurus.org/uat/1813"}]}]}, {"name": "Stellar mergers", "uri": "http://astrothesaurus.org/uat/2157"}, {"name": "Symbiotic binary stars", "uri": "http://astrothesaurus.org/uat/1674", "children": [{"name": "Symbiotic novae", "uri": "http://astrothesaurus.org/uat/1675"}, {"name": "Z Andromedae stars", "uri": "http://astrothesaurus.org/uat/1835"}]}]}, {"name": "Z Andromedae stars", "uri": "http://astrothesaurus.org/uat/1835"}]}, {"name": "Companion stars", "uri": "http://astrothesaurus.org/uat/291", "children": [{"name": "Substellar companion stars", "uri": "http://astrothesaurus.org/uat/1648"}, {"name": "Tertiary stars", "uri": "http://astrothesaurus.org/uat/1691"}]}, {"name": "Detached binary stars", "uri": "http://astrothesaurus.org/uat/375"}, {"name": "Double periodic variable stars", "uri": "http://astrothesaurus.org/uat/2111"}, {"name": "Eclipsing binary stars", "uri": "http://astrothesaurus.org/uat/444", "children": [{"name": "Algol variable stars", "uri": "http://astrothesaurus.org/uat/24"}, {"name": "Beta Lyrae stars", "uri": "http://astrothesaurus.org/uat/149"}, {"name": "Upsilon Sagittarii stars", "uri": "http://astrothesaurus.org/uat/1749"}, {"name": "W Ursae Majoris variable stars", "uri": "http://astrothesaurus.org/uat/1783"}]}, {"name": "Interferometric binary stars", "uri": "http://astrothesaurus.org/uat/806"}, {"name": "Relativistic binary stars", "uri": "http://astrothesaurus.org/uat/1386"}, {"name": "Spectroscopic binary stars", "uri": "http://astrothesaurus.org/uat/1557"}, {"name": "Visual binary stars", "uri": "http://astrothesaurus.org/uat/1777"}, {"name": "Wide binary stars", "uri": "http://astrothesaurus.org/uat/1801"}]}, {"name": "Trinary stars", "uri": "http://astrothesaurus.org/uat/1714"}]}, {"name": "Novae", "uri": "http://astrothesaurus.org/uat/1127", "children": [{"name": "Classical novae", "uri": "http://astrothesaurus.org/uat/251"}, {"name": "DQ Herculis stars", "uri": "http://astrothesaurus.org/uat/407"}, {"name": "Dwarf novae", "uri": "http://astrothesaurus.org/uat/418", "children": [{"name": "SU Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1645"}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}, {"name": "U Geminorum stars", "uri": "http://astrothesaurus.org/uat/1732"}, {"name": "WZ Sagittae stars", "uri": "http://astrothesaurus.org/uat/1809"}, {"name": "Z Camelopardalis stars", "uri": "http://astrothesaurus.org/uat/1836"}]}, {"name": "Fast novae", "uri": "http://astrothesaurus.org/uat/530"}, {"name": "Recurrent novae", "uri": "http://astrothesaurus.org/uat/1366"}, {"name": "Slow novae", "uri": "http://astrothesaurus.org/uat/1467"}, {"name": "Symbiotic novae", "uri": "http://astrothesaurus.org/uat/1675"}, {"name": "X-ray novae", "uri": "http://astrothesaurus.org/uat/1818"}]}, {"name": "Protostars", "uri": "http://astrothesaurus.org/uat/1302", "children": [{"name": "Bok globules", "uri": "http://astrothesaurus.org/uat/171"}, {"name": "Cocoon stars", "uri": "http://astrothesaurus.org/uat/263"}, {"name": "Cometary nebulae", "uri": "http://astrothesaurus.org/uat/278"}, {"name": "Protoplanetary disks", "uri": "http://astrothesaurus.org/uat/1300", "children": [{"name": "Planetesimals", "uri": "http://astrothesaurus.org/uat/1259"}, {"name": "Proplyds", "uri": "http://astrothesaurus.org/uat/1296"}]}, {"name": "Young stellar objects", "uri": "http://astrothesaurus.org/uat/1834", "children": [{"name": "FU Orionis stars", "uri": "http://astrothesaurus.org/uat/553"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Herbig-Haro objects", "uri": "http://astrothesaurus.org/uat/722"}, {"name": "T Tauri stars", "uri": "http://astrothesaurus.org/uat/1681", "children": [{"name": "Classical T Tauri stars", "uri": "http://astrothesaurus.org/uat/252"}, {"name": "Weak-line T Tauri stars", "uri": "http://astrothesaurus.org/uat/1795"}]}]}]}, {"name": "Solar analogs", "uri": "http://astrothesaurus.org/uat/1941"}, {"name": "Stellar evolutionary types", "uri": "http://astrothesaurus.org/uat/2052", "children": [{"name": "Asymptotic giant branch stars", "uri": "http://astrothesaurus.org/uat/2100"}, {"name": "Blue straggler stars", "uri": "http://astrothesaurus.org/uat/168"}, {"name": "Brown dwarfs", "uri": "http://astrothesaurus.org/uat/185", "children": [{"name": "L dwarfs", "uri": "http://astrothesaurus.org/uat/894"}, {"name": "L subdwarfs", "uri": "http://astrothesaurus.org/uat/896"}, {"name": "T dwarfs", "uri": "http://astrothesaurus.org/uat/1679"}, {"name": "T subdwarfs", "uri": "http://astrothesaurus.org/uat/1680"}, {"name": "Y dwarfs", "uri": "http://astrothesaurus.org/uat/1827"}]}, {"name": "Dwarf stars", "uri": "http://astrothesaurus.org/uat/2053", "children": [{"name": "A dwarf stars", "uri": "http://astrothesaurus.org/uat/3"}, {"name": "B dwarf stars", "uri": "http://astrothesaurus.org/uat/126"}, {"name": "F dwarf stars", "uri": "http://astrothesaurus.org/uat/516"}, {"name": "G dwarf stars", "uri": "http://astrothesaurus.org/uat/556"}, {"name": "K dwarf stars", "uri": "http://astrothesaurus.org/uat/876"}, {"name": "M dwarf stars", "uri": "http://astrothesaurus.org/uat/982"}, {"name": "O dwarf stars", "uri": "http://astrothesaurus.org/uat/1135"}, {"name": "T dwarfs", "uri": "http://astrothesaurus.org/uat/1679"}]}, {"name": "Evolved stars", "uri": "http://astrothesaurus.org/uat/481", "children": [{"name": "Giant stars", "uri": "http://astrothesaurus.org/uat/655", "children": [{"name": "A giant stars", "uri": "http://astrothesaurus.org/uat/4"}, {"name": "B giant stars", "uri": "http://astrothesaurus.org/uat/127"}, {"name": "CH stars", "uri": "http://astrothesaurus.org/uat/220"}, {"name": "CN stars", "uri": "http://astrothesaurus.org/uat/260"}, {"name": "Chemically peculiar giant stars", "uri": "http://astrothesaurus.org/uat/1201"}, {"name": "Extreme carbon stars", "uri": "http://astrothesaurus.org/uat/512"}, {"name": "F giant stars", "uri": "http://astrothesaurus.org/uat/517"}, {"name": "G giant stars", "uri": "http://astrothesaurus.org/uat/557"}, {"name": "Late-type giant stars", "uri": "http://astrothesaurus.org/uat/908", "children": [{"name": "Heavy metal stars", "uri": "http://astrothesaurus.org/uat/705", "children": [{"name": "Barium stars", "uri": "http://astrothesaurus.org/uat/135", "children": [{"name": "Semi-barium stars", "uri": "http://astrothesaurus.org/uat/1442"}]}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "S stars", "uri": "http://astrothesaurus.org/uat/1421", "children": [{"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}, {"name": "Strontium stars", "uri": "http://astrothesaurus.org/uat/1644"}, {"name": "Technetium stars", "uri": "http://astrothesaurus.org/uat/1683"}]}, {"name": "Irregular variable stars", "uri": "http://astrothesaurus.org/uat/865", "children": [{"name": "Lc variable stars", "uri": "http://astrothesaurus.org/uat/913"}, {"name": "R Coronae Borealis variable stars", "uri": "http://astrothesaurus.org/uat/1327"}, {"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}, {"name": "T Tauri stars", "uri": "http://astrothesaurus.org/uat/1681", "children": [{"name": "Classical T Tauri stars", "uri": "http://astrothesaurus.org/uat/252"}, {"name": "Weak-line T Tauri stars", "uri": "http://astrothesaurus.org/uat/1795"}]}]}, {"name": "K giant stars", "uri": "http://astrothesaurus.org/uat/877"}, {"name": "M giant stars", "uri": "http://astrothesaurus.org/uat/983", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}, {"name": "Mira variable stars", "uri": "http://astrothesaurus.org/uat/1066"}, {"name": "Semi-regular variable stars", "uri": "http://astrothesaurus.org/uat/1444", "children": [{"name": "SRS variable stars", "uri": "http://astrothesaurus.org/uat/2014"}, {"name": "SRa variable stars", "uri": "http://astrothesaurus.org/uat/2010"}, {"name": "SRb variable stars", "uri": "http://astrothesaurus.org/uat/2011"}, {"name": "SRc variable stars", "uri": "http://astrothesaurus.org/uat/2012"}, {"name": "SRd variable stars", "uri": "http://astrothesaurus.org/uat/2013", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}]}]}, {"name": "Lb variable stars", "uri": "http://astrothesaurus.org/uat/912"}, {"name": "O giant stars", "uri": "http://astrothesaurus.org/uat/1136"}, {"name": "OH/IR stars", "uri": "http://astrothesaurus.org/uat/1156"}, {"name": "R stars", "uri": "http://astrothesaurus.org/uat/1328"}, {"name": "Red giant stars", "uri": "http://astrothesaurus.org/uat/1372", "children": [{"name": "OGLE small amplitude red giant stars", "uri": "http://astrothesaurus.org/uat/2123"}, {"name": "Red straggler stars", "uri": "http://astrothesaurus.org/uat/1374"}]}, {"name": "S stars", "uri": "http://astrothesaurus.org/uat/1421", "children": [{"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}, {"name": "Weak G band stars", "uri": "http://astrothesaurus.org/uat/1796"}]}, {"name": "Hypergiant stars", "uri": "http://astrothesaurus.org/uat/774", "children": [{"name": "Yellow hypergiant stars", "uri": "http://astrothesaurus.org/uat/1828"}]}, {"name": "Subgiant stars", "uri": "http://astrothesaurus.org/uat/1646", "children": [{"name": "A subgiant stars", "uri": "http://astrothesaurus.org/uat/7"}, {"name": "B subgiant stars", "uri": "http://astrothesaurus.org/uat/125"}, {"name": "F subgiant stars", "uri": "http://astrothesaurus.org/uat/521"}, {"name": "G subgiant stars", "uri": "http://astrothesaurus.org/uat/560"}, {"name": "K subgiant stars", "uri": "http://astrothesaurus.org/uat/880"}, {"name": "M subgiant stars", "uri": "http://astrothesaurus.org/uat/987"}, {"name": "O subgiant stars", "uri": "http://astrothesaurus.org/uat/1132"}]}, {"name": "Supergiant stars", "uri": "http://astrothesaurus.org/uat/1661", "children": [{"name": "Early-type supergiant stars", "uri": "http://astrothesaurus.org/uat/431", "children": [{"name": "A supergiant stars", "uri": "http://astrothesaurus.org/uat/8"}, {"name": "B supergiant stars", "uri": "http://astrothesaurus.org/uat/130"}, {"name": "O supergiant stars", "uri": "http://astrothesaurus.org/uat/1139"}, {"name": "OB supergiant stars", "uri": "http://astrothesaurus.org/uat/1142"}]}, {"name": "F supergiant stars", "uri": "http://astrothesaurus.org/uat/522", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}, {"name": "G supergiant stars", "uri": "http://astrothesaurus.org/uat/561"}, {"name": "Late-type supergiant stars", "uri": "http://astrothesaurus.org/uat/910", "children": [{"name": "K supergiant stars", "uri": "http://astrothesaurus.org/uat/881"}, {"name": "M supergiant stars", "uri": "http://astrothesaurus.org/uat/988"}, {"name": "Red supergiant stars", "uri": "http://astrothesaurus.org/uat/1375"}]}, {"name": "Red supergiant stars", "uri": "http://astrothesaurus.org/uat/1375"}]}]}, {"name": "Horizontal branch stars", "uri": "http://astrothesaurus.org/uat/746", "children": [{"name": "Extreme horizontal branch stars", "uri": "http://astrothesaurus.org/uat/513"}, {"name": "Zero-age horizontal branch stars", "uri": "http://astrothesaurus.org/uat/1842"}]}, {"name": "Main sequence stars", "uri": "http://astrothesaurus.org/uat/1000", "children": [{"name": "Zero-age main sequence stars", "uri": "http://astrothesaurus.org/uat/1843"}]}, {"name": "Post-asymptotic giant branch stars", "uri": "http://astrothesaurus.org/uat/2121"}, {"name": "Pre-main sequence stars", "uri": "http://astrothesaurus.org/uat/1290"}, {"name": "Subdwarf stars", "uri": "http://astrothesaurus.org/uat/2054", "children": [{"name": "A subdwarf stars", "uri": "http://astrothesaurus.org/uat/6"}, {"name": "B subdwarf stars", "uri": "http://astrothesaurus.org/uat/129"}, {"name": "F subdwarf stars", "uri": "http://astrothesaurus.org/uat/520"}, {"name": "G subdwarf stars", "uri": "http://astrothesaurus.org/uat/559"}, {"name": "O subdwarf stars", "uri": "http://astrothesaurus.org/uat/1138"}, {"name": "T subdwarfs", "uri": "http://astrothesaurus.org/uat/1680"}]}, {"name": "White dwarf stars", "uri": "http://astrothesaurus.org/uat/1799", "children": [{"name": "DA stars", "uri": "http://astrothesaurus.org/uat/348"}, {"name": "DB stars", "uri": "http://astrothesaurus.org/uat/358"}, {"name": "DC stars", "uri": "http://astrothesaurus.org/uat/0"}, {"name": "DO stars", "uri": "http://astrothesaurus.org/uat/397", "children": [{"name": "PG 1159 stars", "uri": "http://astrothesaurus.org/uat/1216"}]}, {"name": "DQ stars", "uri": "http://astrothesaurus.org/uat/1849"}, {"name": "DZ stars", "uri": "http://astrothesaurus.org/uat/1848"}, {"name": "ZZ Ceti stars", "uri": "http://astrothesaurus.org/uat/1847"}]}, {"name": "Yellow straggler stars", "uri": "http://astrothesaurus.org/uat/1829"}]}, {"name": "Stellar spectral types", "uri": "http://astrothesaurus.org/uat/2051", "children": [{"name": "A stars", "uri": "http://astrothesaurus.org/uat/5", "children": [{"name": "A dwarf stars", "uri": "http://astrothesaurus.org/uat/3"}, {"name": "A giant stars", "uri": "http://astrothesaurus.org/uat/4"}, {"name": "A subdwarf stars", "uri": "http://astrothesaurus.org/uat/6"}, {"name": "A subgiant stars", "uri": "http://astrothesaurus.org/uat/7"}, {"name": "A supergiant stars", "uri": "http://astrothesaurus.org/uat/8"}, {"name": "Ae stars", "uri": "http://astrothesaurus.org/uat/20", "children": [{"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}]}, {"name": "Am stars", "uri": "http://astrothesaurus.org/uat/33"}, {"name": "Ap stars", "uri": "http://astrothesaurus.org/uat/50", "children": [{"name": "Holmium stars", "uri": "http://astrothesaurus.org/uat/744"}, {"name": "Manganese stars", "uri": "http://astrothesaurus.org/uat/1004"}, {"name": "Rapidly oscillating Ap star", "uri": "http://astrothesaurus.org/uat/27"}, {"name": "Silicon stars", "uri": "http://astrothesaurus.org/uat/1459"}]}]}, {"name": "B stars", "uri": "http://astrothesaurus.org/uat/128", "children": [{"name": "53 Persei stars", "uri": "http://astrothesaurus.org/uat/2"}, {"name": "B dwarf stars", "uri": "http://astrothesaurus.org/uat/126"}, {"name": "B giant stars", "uri": "http://astrothesaurus.org/uat/127"}, {"name": "B subdwarf stars", "uri": "http://astrothesaurus.org/uat/129"}, {"name": "B subgiant stars", "uri": "http://astrothesaurus.org/uat/125"}, {"name": "B supergiant stars", "uri": "http://astrothesaurus.org/uat/130"}, {"name": "BW stars", "uri": "http://astrothesaurus.org/uat/189"}, {"name": "Be stars", "uri": "http://astrothesaurus.org/uat/142", "children": [{"name": "B(e) stars", "uri": "http://astrothesaurus.org/uat/2104"}, {"name": "Herbig Ae/Be stars", "uri": "http://astrothesaurus.org/uat/723"}, {"name": "Lambda Eridani stars", "uri": "http://astrothesaurus.org/uat/899"}]}, {"name": "Bp stars", "uri": "http://astrothesaurus.org/uat/178"}, {"name": "Mercury-manganese stars", "uri": "http://astrothesaurus.org/uat/1025"}]}, {"name": "F stars", "uri": "http://astrothesaurus.org/uat/519", "children": [{"name": "F dwarf stars", "uri": "http://astrothesaurus.org/uat/516"}, {"name": "F giant stars", "uri": "http://astrothesaurus.org/uat/517"}, {"name": "F subdwarf stars", "uri": "http://astrothesaurus.org/uat/520"}, {"name": "F subgiant stars", "uri": "http://astrothesaurus.org/uat/521"}, {"name": "F supergiant stars", "uri": "http://astrothesaurus.org/uat/522", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}]}, {"name": "G stars", "uri": "http://astrothesaurus.org/uat/558", "children": [{"name": "G dwarf stars", "uri": "http://astrothesaurus.org/uat/556"}, {"name": "G giant stars", "uri": "http://astrothesaurus.org/uat/557"}, {"name": "G subdwarf stars", "uri": "http://astrothesaurus.org/uat/559"}, {"name": "G subgiant stars", "uri": "http://astrothesaurus.org/uat/560"}, {"name": "G supergiant stars", "uri": "http://astrothesaurus.org/uat/561"}]}, {"name": "K stars", "uri": "http://astrothesaurus.org/uat/878", "children": [{"name": "K dwarf stars", "uri": "http://astrothesaurus.org/uat/876"}, {"name": "K giant stars", "uri": "http://astrothesaurus.org/uat/877"}, {"name": "K subdwarf stars", "uri": "http://astrothesaurus.org/uat/879"}, {"name": "K subgiant stars", "uri": "http://astrothesaurus.org/uat/880"}, {"name": "K supergiant stars", "uri": "http://astrothesaurus.org/uat/881"}]}, {"name": "M stars", "uri": "http://astrothesaurus.org/uat/985", "children": [{"name": "M dwarf stars", "uri": "http://astrothesaurus.org/uat/982"}, {"name": "M giant stars", "uri": "http://astrothesaurus.org/uat/983", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}, {"name": "M subdwarf stars", "uri": "http://astrothesaurus.org/uat/986"}, {"name": "M subgiant stars", "uri": "http://astrothesaurus.org/uat/987"}, {"name": "M supergiant stars", "uri": "http://astrothesaurus.org/uat/988"}, {"name": "Me stars", "uri": "http://astrothesaurus.org/uat/1017", "children": [{"name": "Me variable stars", "uri": "http://astrothesaurus.org/uat/1018"}]}]}, {"name": "O stars", "uri": "http://astrothesaurus.org/uat/1137", "children": [{"name": "O dwarf stars", "uri": "http://astrothesaurus.org/uat/1135"}, {"name": "O giant stars", "uri": "http://astrothesaurus.org/uat/1136"}, {"name": "O subdwarf stars", "uri": "http://astrothesaurus.org/uat/1138"}, {"name": "O subgiant stars", "uri": "http://astrothesaurus.org/uat/1132"}, {"name": "O supergiant stars", "uri": "http://astrothesaurus.org/uat/1139"}, {"name": "Oe stars", "uri": "http://astrothesaurus.org/uat/1153"}, {"name": "Oef stars", "uri": "http://astrothesaurus.org/uat/1154"}, {"name": "Of stars", "uri": "http://astrothesaurus.org/uat/1155"}]}, {"name": "OB stars", "uri": "http://astrothesaurus.org/uat/1141", "children": [{"name": "OB supergiant stars", "uri": "http://astrothesaurus.org/uat/1142"}]}, {"name": "R stars", "uri": "http://astrothesaurus.org/uat/1328"}, {"name": "S stars", "uri": "http://astrothesaurus.org/uat/1421", "children": [{"name": "Zirconium stars", "uri": "http://astrothesaurus.org/uat/1844"}]}]}, {"name": "Supernovae", "uri": "http://astrothesaurus.org/uat/1668", "children": [{"name": "Core-collapse supernovae", "uri": "http://astrothesaurus.org/uat/304", "children": [{"name": "Type II supernovae", "uri": "http://astrothesaurus.org/uat/1731"}, {"name": "Type Ib supernovae", "uri": "http://astrothesaurus.org/uat/1729"}, {"name": "Type Ic supernovae", "uri": "http://astrothesaurus.org/uat/1730"}]}, {"name": "Hypernovae", "uri": "http://astrothesaurus.org/uat/775"}, {"name": "Type Ia supernovae", "uri": "http://astrothesaurus.org/uat/1728"}]}, {"name": "Variable stars", "uri": "http://astrothesaurus.org/uat/1761", "children": [{"name": "Extrinsic variable stars", "uri": "http://astrothesaurus.org/uat/514", "children": [{"name": "Eclipsing binary stars", "uri": "http://astrothesaurus.org/uat/444", "children": [{"name": "Algol variable stars", "uri": "http://astrothesaurus.org/uat/24"}, {"name": "Beta Lyrae stars", "uri": "http://astrothesaurus.org/uat/149"}, {"name": "Upsilon Sagittarii stars", "uri": "http://astrothesaurus.org/uat/1749"}, {"name": "W Ursae Majoris variable stars", "uri": "http://astrothesaurus.org/uat/1783"}]}, {"name": "Ellipsoidal variable stars", "uri": "http://astrothesaurus.org/uat/455", "children": [{"name": "Beta Lyrae stars", "uri": "http://astrothesaurus.org/uat/149"}, {"name": "FK Comae stars", "uri": "http://astrothesaurus.org/uat/2015"}]}]}, {"name": "Intrinsic variable stars", "uri": "http://astrothesaurus.org/uat/859", "children": [{"name": "Cataclysmic variable stars", "uri": "http://astrothesaurus.org/uat/203", "children": [{"name": "AM Canum Venaticorum stars", "uri": "http://astrothesaurus.org/uat/31"}, {"name": "AM Herculis stars", "uri": "http://astrothesaurus.org/uat/32"}, {"name": "Nova-like variable stars", "uri": "http://astrothesaurus.org/uat/1126", "children": [{"name": "UX Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1757"}, {"name": "VY Sculptoris stars", "uri": "http://astrothesaurus.org/uat/1782"}]}, {"name": "Novae", "uri": "http://astrothesaurus.org/uat/1127", "children": [{"name": "Classical novae", "uri": "http://astrothesaurus.org/uat/251"}, {"name": "DQ Herculis stars", "uri": "http://astrothesaurus.org/uat/407"}, {"name": "Dwarf novae", "uri": "http://astrothesaurus.org/uat/418", "children": [{"name": "SU Ursae Majoris stars", "uri": "http://astrothesaurus.org/uat/1645"}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}, {"name": "U Geminorum stars", "uri": "http://astrothesaurus.org/uat/1732"}, {"name": "WZ Sagittae stars", "uri": "http://astrothesaurus.org/uat/1809"}, {"name": "Z Camelopardalis stars", "uri": "http://astrothesaurus.org/uat/1836"}]}, {"name": "Fast novae", "uri": "http://astrothesaurus.org/uat/530"}, {"name": "Recurrent novae", "uri": "http://astrothesaurus.org/uat/1366"}, {"name": "Slow novae", "uri": "http://astrothesaurus.org/uat/1467"}, {"name": "Symbiotic novae", "uri": "http://astrothesaurus.org/uat/1675"}, {"name": "X-ray novae", "uri": "http://astrothesaurus.org/uat/1818"}]}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}, {"name": "UV Persei stars", "uri": "http://astrothesaurus.org/uat/1756"}, {"name": "WZ Sagittae stars", "uri": "http://astrothesaurus.org/uat/1809"}]}, {"name": "Eruptive variable stars", "uri": "http://astrothesaurus.org/uat/476", "children": [{"name": "BY Draconis stars", "uri": "http://astrothesaurus.org/uat/190"}, {"name": "Flare stars", "uri": "http://astrothesaurus.org/uat/540", "children": [{"name": "FU Orionis stars", "uri": "http://astrothesaurus.org/uat/553"}, {"name": "R Coronae Borealis variable stars", "uri": "http://astrothesaurus.org/uat/1327"}, {"name": "RS Canum Venaticorum variable stars", "uri": "http://astrothesaurus.org/uat/1416"}, {"name": "Red dwarf flare stars", "uri": "http://astrothesaurus.org/uat/1367"}, {"name": "UV Ceti stars", "uri": "http://astrothesaurus.org/uat/1755"}]}, {"name": "Gamma Cassiopeiae stars", "uri": "http://astrothesaurus.org/uat/635"}, {"name": "Luminous blue variable stars", "uri": "http://astrothesaurus.org/uat/944", "children": [{"name": "S Doradus stars", "uri": "http://astrothesaurus.org/uat/1420"}]}]}, {"name": "Herbig-Haro objects", "uri": "http://astrothesaurus.org/uat/722"}, {"name": "Magnetic variable stars", "uri": "http://astrothesaurus.org/uat/996", "children": [{"name": "Am stars", "uri": "http://astrothesaurus.org/uat/33"}, {"name": "Rapidly oscillating Ap star", "uri": "http://astrothesaurus.org/uat/27"}, {"name": "SX Arietis variable stars", "uri": "http://astrothesaurus.org/uat/1672"}]}, {"name": "Pulsating variable stars", "uri": "http://astrothesaurus.org/uat/1307", "children": [{"name": "53 Persei stars", "uri": "http://astrothesaurus.org/uat/2"}, {"name": "Alpha Cygni variable stars", "uri": "http://astrothesaurus.org/uat/2122"}, {"name": "Beta Cephei variable stars", "uri": "http://astrothesaurus.org/uat/148"}, {"name": "Blue large-amplitude pulsators", "uri": "http://astrothesaurus.org/uat/2112"}, {"name": "Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/218", "children": [{"name": "Anomalous Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/2106"}, {"name": "Delta Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/368"}, {"name": "Double-mode Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/402"}, {"name": "Type II Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/2124", "children": [{"name": "BL Herculis variable stars", "uri": "http://astrothesaurus.org/uat/157"}, {"name": "RV Tauri variable stars", "uri": "http://astrothesaurus.org/uat/1418"}, {"name": "W Virginis variable stars", "uri": "http://astrothesaurus.org/uat/1784"}]}, {"name": "Young disk Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/1832"}]}, {"name": "Delta Delphini variable stars", "uri": "http://astrothesaurus.org/uat/369"}, {"name": "Delta Scuti variable stars", "uri": "http://astrothesaurus.org/uat/370"}, {"name": "Double-mode variable stars", "uri": "http://astrothesaurus.org/uat/404", "children": [{"name": "Double-mode Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/402"}, {"name": "RRd variable stars", "uri": "http://astrothesaurus.org/uat/1876"}, {"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}, {"name": "Gamma Doradus variable stars", "uri": "http://astrothesaurus.org/uat/2101"}, {"name": "Irregular variable stars", "uri": "http://astrothesaurus.org/uat/865", "children": [{"name": "Lc variable stars", "uri": "http://astrothesaurus.org/uat/913"}, {"name": "R Coronae Borealis variable stars", "uri": "http://astrothesaurus.org/uat/1327"}, {"name": "Soft gamma-ray repeaters", "uri": "http://astrothesaurus.org/uat/1471"}, {"name": "T Tauri stars", "uri": "http://astrothesaurus.org/uat/1681", "children": [{"name": "Classical T Tauri stars", "uri": "http://astrothesaurus.org/uat/252"}, {"name": "Weak-line T Tauri stars", "uri": "http://astrothesaurus.org/uat/1795"}]}]}, {"name": "Lambda Eridani stars", "uri": "http://astrothesaurus.org/uat/899"}, {"name": "Long period variable stars", "uri": "http://astrothesaurus.org/uat/935", "children": [{"name": "Mira variable stars", "uri": "http://astrothesaurus.org/uat/1066"}, {"name": "OGLE small amplitude red giant stars", "uri": "http://astrothesaurus.org/uat/2123"}, {"name": "Semi-regular variable stars", "uri": "http://astrothesaurus.org/uat/1444", "children": [{"name": "SRS variable stars", "uri": "http://astrothesaurus.org/uat/2014"}, {"name": "SRa variable stars", "uri": "http://astrothesaurus.org/uat/2010"}, {"name": "SRb variable stars", "uri": "http://astrothesaurus.org/uat/2011"}, {"name": "SRc variable stars", "uri": "http://astrothesaurus.org/uat/2012"}, {"name": "SRd variable stars", "uri": "http://astrothesaurus.org/uat/2013", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}]}, {"name": "Slow irregular variable stars", "uri": "http://astrothesaurus.org/uat/1466", "children": [{"name": "Lb variable stars", "uri": "http://astrothesaurus.org/uat/912"}]}]}, {"name": "Mira variable stars", "uri": "http://astrothesaurus.org/uat/1066"}, {"name": "Multi-periodic variable stars", "uri": "http://astrothesaurus.org/uat/1079", "children": [{"name": "Beta Cephei variable stars", "uri": "http://astrothesaurus.org/uat/148"}, {"name": "Delta Scuti variable stars", "uri": "http://astrothesaurus.org/uat/370"}, {"name": "Double periodic variable stars", "uri": "http://astrothesaurus.org/uat/2111"}, {"name": "Double-mode variable stars", "uri": "http://astrothesaurus.org/uat/404", "children": [{"name": "Double-mode Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/402"}, {"name": "RRd variable stars", "uri": "http://astrothesaurus.org/uat/1876"}, {"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}, {"name": "OGLE small amplitude red giant stars", "uri": "http://astrothesaurus.org/uat/2123"}, {"name": "PG 1159 stars", "uri": "http://astrothesaurus.org/uat/1216"}, {"name": "SX Phoenicis variable stars", "uri": "http://astrothesaurus.org/uat/1673"}, {"name": "ZZ Ceti stars", "uri": "http://astrothesaurus.org/uat/1847"}]}, {"name": "PV Telescopii variable stars", "uri": "http://astrothesaurus.org/uat/1311"}, {"name": "RR Lyrae variable stars", "uri": "http://astrothesaurus.org/uat/1410", "children": [{"name": "RRab variable stars", "uri": "http://astrothesaurus.org/uat/1413", "children": [{"name": "Blazhko effect", "uri": "http://astrothesaurus.org/uat/2110"}]}, {"name": "RRc variable stars", "uri": "http://astrothesaurus.org/uat/1415", "children": [{"name": "Blazhko effect", "uri": "http://astrothesaurus.org/uat/2110"}]}, {"name": "RRd variable stars", "uri": "http://astrothesaurus.org/uat/1876"}]}]}]}, {"name": "Peculiar variable stars", "uri": "http://astrothesaurus.org/uat/1202"}, {"name": "Periodic variable stars", "uri": "http://astrothesaurus.org/uat/1213", "children": [{"name": "Long period variable stars", "uri": "http://astrothesaurus.org/uat/935", "children": [{"name": "Mira variable stars", "uri": "http://astrothesaurus.org/uat/1066"}, {"name": "OGLE small amplitude red giant stars", "uri": "http://astrothesaurus.org/uat/2123"}, {"name": "Semi-regular variable stars", "uri": "http://astrothesaurus.org/uat/1444", "children": [{"name": "SRS variable stars", "uri": "http://astrothesaurus.org/uat/2014"}, {"name": "SRa variable stars", "uri": "http://astrothesaurus.org/uat/2010"}, {"name": "SRb variable stars", "uri": "http://astrothesaurus.org/uat/2011"}, {"name": "SRc variable stars", "uri": "http://astrothesaurus.org/uat/2012"}, {"name": "SRd variable stars", "uri": "http://astrothesaurus.org/uat/2013", "children": [{"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}]}, {"name": "Slow irregular variable stars", "uri": "http://astrothesaurus.org/uat/1466", "children": [{"name": "Lb variable stars", "uri": "http://astrothesaurus.org/uat/912"}]}]}, {"name": "Multi-periodic variable stars", "uri": "http://astrothesaurus.org/uat/1079", "children": [{"name": "Beta Cephei variable stars", "uri": "http://astrothesaurus.org/uat/148"}, {"name": "Delta Scuti variable stars", "uri": "http://astrothesaurus.org/uat/370"}, {"name": "Double periodic variable stars", "uri": "http://astrothesaurus.org/uat/2111"}, {"name": "Double-mode variable stars", "uri": "http://astrothesaurus.org/uat/404", "children": [{"name": "Double-mode Cepheid variable stars", "uri": "http://astrothesaurus.org/uat/402"}, {"name": "RRd variable stars", "uri": "http://astrothesaurus.org/uat/1876"}, {"name": "UU Herculis stars", "uri": "http://astrothesaurus.org/uat/1754"}]}, {"name": "OGLE small amplitude red giant stars", "uri": "http://astrothesaurus.org/uat/2123"}, {"name": "PG 1159 stars", "uri": "http://astrothesaurus.org/uat/1216"}, {"name": "SX Phoenicis variable stars", "uri": "http://astrothesaurus.org/uat/1673"}, {"name": "ZZ Ceti stars", "uri": "http://astrothesaurus.org/uat/1847"}]}, {"name": "Short period variable stars", "uri": "http://astrothesaurus.org/uat/1453", "children": [{"name": "Beta Cephei variable stars", "uri": "http://astrothesaurus.org/uat/148"}, {"name": "Delta Scuti variable stars", "uri": "http://astrothesaurus.org/uat/370"}]}]}]}]}]}]}