[Mesa-users] [EXTERNAL] Re: Evolving star in user-specified medium

[Cheng, Roseanne Marie]

Hi Frank,


Thank you so much!  We will work with this option!


-Roseanne


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________________________________
From: Francis Timmes <fxt44 at mac.com>
Sent: Thursday, January 19, 2023 9:44 PM
To: Cheng, Roseanne Marie
Cc: Frank Timmes; mesa-users
Subject: [EXTERNAL] Re: [Mesa-users] Evolving star in user-specified medium

hi roseanne,

one option might be to change the outer boundary conditions to be the user-specified medium.
examples of modifying the outer boundary condition include star/test_suite/conductive_flame
(used in https://urldefense.com/v3/__https://ui.adsabs.harvard.edu/abs/2020ApJ...891....5S/abstract__;!!Bt8fGhp8LhKGRg!EluF7R9X2W-toAyNxq1n2pMFFXWlPde8PzARmDuHYzCbT3bWqddQOp8lw1zMXT2xXdCqxfc1jQw$ ),
and https://urldefense.com/v3/__https://doi.org/10.5281/zenodo.4437705__;!!Bt8fGhp8LhKGRg!EluF7R9X2W-toAyNxq1n2pMFFXWlPde8PzARmDuHYzCbT3bWqddQOp8lw1zMXT2xXdCqUMBBMjg$
(used in https://urldefense.com/v3/__https://ui.adsabs.harvard.edu/abs/2021ApJ...910...94C/abstract__;!!Bt8fGhp8LhKGRg!EluF7R9X2W-toAyNxq1n2pMFFXWlPde8PzARmDuHYzCbT3bWqddQOp8lw1zMXT2xXdCqM1J0_M0$ ).

fxt



> On Jan 19, 2023, at 12:01 PM, Cheng, Roseanne Marie via Mesa-users <mesa-users at lists.mesastar.org> wrote:
>
> Hi everyone,
>
> Thank you so much again for answering our questions!  We were wondering if it is possible evolve a star (such as with make_zams) in a user-specified medium.  In looking at the atmosphere controls, choices can be made at the boundary conditions.  We would like to evolve the system with a domain that extends past the surface of the star by several radii to include a user-specified medium which could be consistent with the current atmosphere BCs.  Is this possible?  Is there a test we could look at to create an artificial "envelope" or medium around the star?
>
> Thanks,
> Roseanne
>
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> T-3: Fluid Dynamics and Solid Mechanics
> Theoretical Division
> Los Alamos National Laboratory
> +1 505 667 1607
>
> Pronouns: She/Her/Hers
>
> This email is a safe space
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>
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