[Mesa-users] Changing metallicity for binary stars

aite kaci aitekaci at gmail.com
Sun Feb 11 17:55:28 EST 2018

Thank you for your suggestions.

I followed your advice and did the same thing as done in
$MESA_DIR/binary/test_suite_binary_bh  i did not have a result.

The error is:

 000E-02 -0.124E-01    varcontrol

                                                    klo           1
                                                    khi         994

 ERROR: failed to find age in history data

 ERROR: failed to find period_days in history data

 History_Track1 ierr          -1
 onScreen_Plots ierr          -1

                                 finished doing relax z

 star_relax_Z ierr          -1
 do_star_job_controls_after ierr          -1
DATE: 2018-02-11
TIME: 17:50:53

I want to start the run directly with z = 0.03 so i need to do
relax_initial_z = 0.03  ?

Thank you

2018-02-11 13:06 GMT-05:00 Pablo Marchant <pamarca at gmail.com>:

> One detail is, if you try to create a model with a different metallicity
> by creating new pre main sequence models, that won't work very well fro
> binary. Mostly because your pre-main sequence models will have extreme
> overflow for most close binaries.
> You can check the test_suite case $MESA_DIR/binary/test_suite/double_bh,
> where inlist1 and inlist2 have a relaxation to a different metallicity.
> This is done via options in star_job.
> Cheers
> On Sun, Feb 11, 2018 at 11:52 AM, Josiah Schwab via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
>> Hi Ait,
>> > How i can change the metallicity for a binary star ?
>> You change the metallicity of each star in the binary individually.
>> So you use the flags for single stars that you've already discovered.
>> Josiah
>> _______________________________________________
>> mesa-users at lists.mesastar.org
>> https://lists.mesastar.org/mailman/listinfo/mesa-users
> --
> Pablo Marchant Campos
> M.Sc on Astrophysics, Universidad Católica de Chile
> PhD on Astrophysics, Argelander-Institut für Astronomie, Universität Bonn
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