[Mesa-users] Changing metallicity for binary stars

Pablo Marchant pamarca at gmail.com
Sun Feb 11 18:19:05 EST 2018


Hi Aite, try turning off pgstar.

Cheers

On Feb 11, 2018 4:55 PM, "aite kaci" <aitekaci at gmail.com> wrote:

> 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
> 1.0000000000000000D+00
>                                                     khi         994
> 0.0000000000000000D+00
>                                                   new_z
> 2.9999999999999999D-02
>                                               current_z
> 3.0000000000001137D-02
>
>  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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