[Mesa-users] Building He layer in ns_h test suite problem

[David Neto]

Hello all,

In the ns_h test suite problem during the first part of the simulation
(inlist_add_he_layer), was there a specific reason or motivation for the
accretion rate used during this part of the simulation? With the default
values, Mdot is 1E-9 Msun/yr, and you simulate for 0.5 seconds, which gives
lots of retries and a fairly long compute time when run. If one cuts mdot
in half and doubles the simulation time (so, building up the same outer
helium layer mass), the number of retries and computation time drops
dramatically. This is all in preparation for the second step, testing
steady hydrogen burning.

I was just wondering if this choice of parameters in the test suite was to
"stress test" parts of MESA or if there was another astrophysical reason
for the choice of mdot and simulation time.

For reference, this is using MESA version 23.05.1 and MESA SDK version
22.6.1.

Cheers,
David
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