[Mesa-users] How to set the initial deuterium abundance?

[Cao, Kaili]

Hi Meridith and Frank,

Thank you for your quick replies. I realized that I should have also searched in &star_job.

A follow-up question: Can the &star_job settings (initial_h1, initial_h2, initial_he3, initial_he4) be combined with the &controls settings (initial_y and initial_z)? For instance, if I only set initial_h2, initial_y, initial_z and initial_zfracs, can MESA calculate the initial abundance of all the isotopes in the nuclear network? Thanks a lot.

Cheers,
Kaili

________________________________
From: Francis Timmes <fxt44 at mac.com>
Sent: Wednesday, June 29, 2022 2:27 PM
To: Cao, Kaili <cao.1191 at buckeyemail.osu.edu>
Cc: Frank Timmes <fxt44 at mac.com>; mesa-users <mesa-users at lists.mesastar.org>
Subject: Re: [Mesa-users] How to set the initial deuterium abundance?

assuming a uniform composition and h2 is in the network,

https://urldefense.com/v3/__https://docs.mesastar.org/en/release-r22.05.1/reference/star_job.html*set-uniform-initial-composition__;Iw!!KGKeukY!z0virTNSc9SSn2_oYI_M-rFTCZAuu8_rEaUrh5LjwmS8VFY7FlYJ224gvwnfhZvt3JVZyR5OGz17TVXZNkIT-qk$

or if more contyrol is needed, again assuming an isotope is in the network

https://urldefense.com/v3/__https://docs.mesastar.org/en/release-r22.05.1/reference/star_job.html*set-uniform-xa-from-file__;Iw!!KGKeukY!z0virTNSc9SSn2_oYI_M-rFTCZAuu8_rEaUrh5LjwmS8VFY7FlYJ224gvwnfhZvt3JVZyR5OGz17TVXZDMgz1EQ$

fxt






> On Jun 29, 2022, at 11:14 AM, Cao, Kaili via Mesa-users <mesa-users at lists.mesastar.org> wrote:
>
> Dear MESA Users,
>
> I wish to set the deuterium abundance of my starting models. However, I did not find something like initial_h2. Could you please tell me how to set the initial deuterium abundance? Thank you for your time and I look forward to your response.
>
> Best regards,
> Kaili Cao
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://urldefense.com/v3/__https://lists.mesastar.org/mailman/listinfo/mesa-users__;!!KGKeukY!z0virTNSc9SSn2_oYI_M-rFTCZAuu8_rEaUrh5LjwmS8VFY7FlYJ224gvwnfhZvt3JVZyR5OGz17TVXZO-ZRpFg$

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