[Mesa-users] eps_grav is always 0

[Zhao Guo]

Dear Huaiyu,

This issue was addressed in a lab developed by Susmita Das for the MESA
Summer School 2025; see
https://mesa-leuven.4d-star.org/tutorials/thursday/lab-1/ for details.

Best,
Zhao

Huaiyu Duan via Mesa-users <mesa-users at lists.mesastar.org> 于2025年8月15日周五
13:28写道：

> Hello,
>
> Sorry for asking a probably simple question. I ran the latest MESA code to
> evolve a 30 Msun model to ZAMS. I copied “profile_columns.list” from the
> default and uncommented line "eps_grav ! -T*ds/dt (negative for
> expansion)”. To my surprise, its values are exactly 0 even for the first
> profile. Is this expected?
>
> — Huaiyu (Mike)
>
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>

-- 
Zhao Guo
www.astro.gsu.edu/~guo
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