Developed for the TARDIS connector workshop 2025 at CCA/Flatiron.
The setup template is in <./template_binary>. It computes the evolution of a 15M☉ donor star + 12M☉ point-mass companion with an initial period of 20 days through case B (post donor-main-sequence) fully conservative mass transfer until carbon core depletion and core-collapse.
Originally developed for Renzo et al.
2021,
2023,
ported to MESA r24.03.1 or later by
@neevshah101. The post-carbon
depletion evolution (see below) is based on a template inlist provided
by @Debraheem. These have been
iterated upon by trial-and-error until viable models run.
Output files generated by using this setup are saved in the runoutputs dir for each directory.
At carbon depletion (extras_finish_step in run_star_extras.f90) we read on-the-fly a
star_job and controls from an inlist whose path is hard coded.
This inlist lives in
inlisttocc.
and it helps to reach the onset of core collapse.
As usual, most computing time is spent post-carbon depletion. This
model uses use_drag = .true. post-carbon depletion to successfully go
to core-collapse without spurious envelope velocities. It also uses
op_split = .true. for T≥4×109 K, and changes overshooting parameters
for late burning (this has been found to be necessary through a
non-systematic but extensive experimentation).
- test it reaches onset of core-collapse with MESA
r24.08.1- 22 iso network
- large network (work in progress in separate folder/branches)
- check CPUh cost: ∼ 3h on 12 cores
