[Mesa-users] Convergence issues when modeling small planets in MESA 15140

[Josiah Schwab]

Hi Bridget,

I have discussed this with Isaac, and after looking into the EOS issues he
> and I were seeing in more detail, I determined that the main source of the
> problems was the PTEH equation of state, not the ideal gas EOS as we had
> initially suspected. Since PTEH was removed in 15140 and replaced with
> FreeEOS, I would like to investigate whether these new tables produce
> different results from what I was seeing before. I am still very
> interested to see whether the CMS EOS provides even more improvement.
>

Whoa, I just tried the model you sent and something goes catastrophically
wrong when it is loaded.  I don't fully understand what's happening yet,
but I suspect a bug on our end.

Where does the initial 0.0005 solar mass model that you are relaxing come
from?  One suggestion is to regenerate that model in r15140.  (I'm guessing
it was generated with a past version?)

Josiah
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