[Mesa-users] Checking whether a star is in the Herzsprung gap

[Francis Timmes]

hi roberto,

perhaps define the beginning of the hertzsprung gap at core hydrogen depletion, 
say when the center hydrogen mass fraction X_c(1h) < 1e-3 ?

fxt




> On Dec 24, 2020, at 9:28 PM, trobolo dinni via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> 
> Dear MESA users,
> 
> I would like to ask if you could suggest the best way to verify if a star has entered the Hertzsprung gap from the mesa outputs.
> 
> So far I have tried to use the power of H burning, which should be at its minimum during the Hertzsprung gap. However, I cannot find any point where it is substantially lower than,  e.g., the main sequence, up to the end of the RGB.
> 
> Thanks in advance.
> Cheers,
> Roberto
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