[Mesa-users] CCSN_IIp module: infall up to what radius?

[Jared Goldberg]

The *_pre_ms_to_core_collapse models end with an Fe core infall velocity
stopping condition -- to get to smaller radii, you can increase that
velocity (see fe_core_infall_limit). However, MESA often chokes at higher
and higher core densities, which is why the rest of the core infall is
carried out *after *excising the proto-NS core in inlist_infall in the
ccsn_IIp setup.

~Jared

On Thu, Jul 3, 2025 at 2:22 PM Mandal, Soham (uqa7ur) via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Dear all,
>
> I am running into an issue while trying to use the CCSN_IIp test_suite
> problem. So the inlist_infall continues evolution of the star till the
> inner radius falls below 400 km. I'm not sure how to compute this value
> (400 km) for any arbitrary model.
>
> For example, in a pre-core-collapse model I ran, the inner radius won't go
> below ~1600 km (found by trial and error). Is there a way to compute the
> lower threshold of the inner radius and set the center_R_lower_limit parameter
> to that before the test problem is run? Any insight will be
> greatly appreciated!
>
> Thanks,
> Soham
>
>
>
> ------------------------------------------------
> Dr. Soham Mandal
> VITA postdoctoral research fellow
> Department of Astronomy
> University of Virginia
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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