Progenitors of low-mass binary black-hole mergers in the isolated binary evolution scenario

This repository contains the MESA template used to obtain the population of BBH mergers in García, Simaz Bunzel, Chaty et al. 2021, accepted in A&A.

Pre-requisites

For computing detailed binary evolutionary models, MESA must be installed (supported version: r10398), and MESASDK (version: 20180822).

Repository organization

.
├── README.md
└── template_r10398
    ├── column_lists
    ├── make
    └── src
        ├── ce
        │   ├── make
        │   ├── private
        │   └── public
        └── core_collapse
            ├── make
            ├── private
            └── public

Inside the src folder two modules, ce and core_collapse, can be found which were developed in this work.

The ce module handles the evolution during a common-envelope phase (using the energy formalism, Ivanova et al. 2003) while the core_collapse simply computes relevant masses at the core-collapse stage of a massive star (Fryer et al. 2012).

ce is controlled via the file inlist_ce while core_collapse with controls found in inlist_cc, both using namelist as every MESA user control.

How to run

To compile and run this template, set up the environment variables needed by MESA: MESA_DIR, MESASDK_ROOT, source the correspoding mesasdk_init.* and run ./mk_mods && ./mk. This will create the proper libraries for the ce and core_collapse modules and link everything, creating a binary file called bin2dco. Finally, run a binary model with ./rn