[Mesa-users] How to detect a radiative core

Josiah Schwab jwschwab at ucsc.edu
Mon Mar 11 11:38:35 EDT 2019


Hi Roque,

> I'm looking a way for detecting when the star develops a radiative core.
> Among the parameters available in the history_column.list file I couldn't
> find any which informs about this stage. On the contrary, I have found the
> following:
>
> *mass_conv_core ! (Msun) mass coord of top of convective core.  0 if core
> is not convective*
>
> Is it correct to assume that if this value is 0 the star has radiative
> core? If that isn't the right way for deriving this condition, I'd highly
> appreciate any further suggestion.
>
Yes, that seems like a reasonable approach to me.

If you need more information than "yes/no", you  could get it by iterating
through s% mixing_type(k) from the center outwards in your
run_star_extras.  You could look at star/private/report.f90
(set_mass_conv_core or set_mass_semiconv_core) for inspiration.

Josiah
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