[Mesa-users] Error in CCSN Test-Suite

[Jared Goldberg]

Hi Prathmesh,

As others have said, by default the example_ccsn_IIp test case does not
incorporate the effects of rotation, but this is in principle something you
might be able to add yourself (such as in the ways suggested).

Does this imply that I can't use rotating models with Stella?
>

Example_ccsn_IIp does not, itself, run Stella at all. Rather, it explodes
the star in MESA and writes out profiles at shock breakout which can be
input into Stella: mesa.hyd, which includes hydrodynamical/thermal
information about the ejecta (such as velocities, temperatures, densities),
and mesa.abn, which includes chemical/isotopic information. These .hyd and
.abn files do not contain rotation information, so Stella, by design, does
not include rotation. After going through example_ccsn_IIp, one must still
run Stella using those mesa.hyd and mesa.abn files in order to get light
curves and other information about evolution post-shock-breakout (you may
already know this, but it is important to state for other interested
users).

However, to echo what Frank said, rotation should matter most *before* a
model gets to the point where it is ready to input into example_ccsn_IIp.
It should generally not be an issue during the explosion, as rotation
timescales pre-collapse should hopefully be much slower than the explosion
timescale.

Hope this helps!

~Jared


On Wed, Dec 19, 2018 at 7:15 AM Aaron Dotter via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Hi Prathamesh,
>
> Thanks for the reply. Does this imply that I can't use rotating models
>> with Stella?
>>
>
> I'm not sure that this is the logical conclusion.  Let's wait for someone
> with experience using Stella weigh in on this question.
>
> I'll add, though, that the fact that split_merge_amr used in
> example_ccsn_IIp doesn't accept rotating models does not necessarily mean
> that you can't run example_ccsn_IIp with a rotating model.  You might try
> simply setting use_split_merge_amr = .false. and seeing what happens.
>
> Aaron
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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