[Mesa-users] lithium abundance in convective core

[Sébastien Deheuvels]

Dear MESA users,

I noticed that when Li7 and Be7 are not considered to be at equilibrium (i.e., using the pp_and_cno_extras nuclear reaction network), the abundance of Li7 is not homogeneous in the convective core of a ~ 1.3 Msun star using mesa-r10108. I assume that this is due to the fact that the timescale of lithium burning is shorter than the timescale of convective mixing. If it is indeed the case, I was wondering how MESA handles these very short timescales numerically. Thanks for your help,

Best wishes,

Sebastien. 

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Sébastien Deheuvels
Associate Professor
University Paul Sabatier - IRAP - OMP
14 Avenue Edouard Belin 31400 Toulouse
Tel. : +33 (0)5 61 33 28 20
Mail : sebastien.deheuvels at irap.omp.eu

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