[mesa-users] Keplerian angular momentum for accreted material

[Héctor MR]

  Hola Pablo,

  Sure! I will give you more details.

  I am trying to implement accretion+rotation in a WD, for which I am
relaxing the initial omega_div_omega_crit (plus mass_change).

  If I use the control use_accreted_material_j = .true., I will have
serious trouble to relax the initial mass change, which I have not managed
to do this way. However, if I implement it in run_star_extras.f (via s%
use_accreted_material_j = .true. in extras_finish_step plus my desired
value for j), things seem to work. This, I do not understand.

  If I do not relax the initial mass change, I will get "stop set_omega"
plus the model number after relax_initial_omega_div_omega_crit, terminal
output that I have located in adjust_mass.f90.

  Finally, if I manage to relax both of them, my model will get stuck in
small time steps <1 s ("failed in mixing angular momentum"), and then the
usual "stopping because of convergence problems dt < min_timestep_limit".

  I wish I could provide you with some plots, but I honestly do not know
how to tackle debugging during the relaxation processes, and all the bugs I
am reporting are difficult to diagnose for me. I am attaching the inlist I
am using plus the model, the nuclear network, run_star_extras and the
history+profile files hoping that you can find a solution (please, let me
know if I forgot to include something). I would be quite grateful if you
could lend me a helping hand with these issues.

  Thanks!


  --
  H.
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