[Mesa-users] Planet Radius and EOS question (Isaac Malsky)

[Bill Paxton]

> On May 11, 2020, at 3:58 AM, Daria Kubyshkina via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> 
> The problem disappears if setting use_eosDT2 = .false. In controls.defaults it is actually stated that this option does not apply if lnPgas_flag is true, but it seems to be wrong. With the use_eosDT2 flag being false, the radii behave as in older versions of MESA.
> 

Thanks for the excellent advice.  Concerning the strange need to turn off DT2 even when lnPgas_flag is true - it was a surprise to me too!   Turns out in certain situations the system decides to bail out of the lnPgas tables to search for an answer using the non-lnPgas eos.  And those are the cases that cause the problems since they seems to fail with DT2 but are ok without it.

You might try the current public release of mesa (12778).  You should be pleased to find that DT2 has gone away (and will not be coming back!). 

-B


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