[Mesa-users] Rotation in MESA r22.11.1

[Pablo Marchant]

Hi Guillermo,

looking at your inlist, you do include rotation, which will give you the
associated centrifugal effect, but you don't have something specified for
rotational mixing, which I presume dominates the luminosity boost in the
PARSEC tracks. By default no rotational mixing effects are included, so you
need to turn them on. You can take a look at the section commented
"rotation" in the inlist:

$MESA_DIR/star/test_suite/20M_z2m2_high_rotation/vim
inlist_to_end_core_he_burn

as an example.

Cheers

On Sun, Nov 17, 2024 at 9:22 PM Torres, Guillermo via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Dear all,
>
> I am new to MESA, and I'm trying to compute main-sequence models with
> r22.11.1 for a range of degrees of rotation (omega/omega_crit), for a star
> with 4.8 MSun. However, the tracks don't seem to change much as I increase
> the rotation, compared to tracks from the PARSEC v2.0 series computed for
> the same mass and composition (see plot attached). In particular, I get
> very little change in luminosity. So I figure I must be doing something
> wrong. I looked at previous threads on rotation, and tried several things I
> saw there, but with no luck. I wonder if someone can tell me what I need to
> change in my inlist to make this work. I attach my main-sequence inlist
> (which loads a previously computed pre-main-sequence model for the same
> mass and composition, and no rotation), as well as my PMS inlist.
>
> Thanks,
> Willie
> _______________________________________________
> 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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