[Mesa-users] Binaries and wide orbital separation

[Amedeo Romagnolo]

Hi all,

I have a problem when simulating the evolution of a binary system.
My goal would be to make the more massive star to go into RLOF, which is
easily doable when I'm not setting a wide orbital separation (like a period
in the order of 10^5 yr). In this case, instead, whatever I do, it seems
that the code stops because a too small timestep has been reached, and
therefore the star's radius has no time to grow enough to go beyond its
Roche Lobe radius.

Do you have any recommendations in this regard?

Additionally, just another small question: is there an output in MESA that
shows at the end of the simulation the final total metallicity of the
simulated star?

Thanks in advance,

Amedeo

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