[mesa-users] Dependence of EOS on mixture

[Francis Timmes]

hi aaron,

also slow as molasses, but http://cococubed.asu.edu/code_pages/eos_ionize.shtml
is a worthy competitor to freeeos. and yea, addressing partial ionization 
in a helmholtz-like manner is on my hit list.

fxt




> On Oct 26, 2015, at 11:59 PM, Aaron Dotter <aaron.dotter at gmail.com> wrote:
> 
> Hi Rich,
> 
> My sense is that you will have a hard time finding this explicitly in the literature.  If you want to do specific EOS comparisons, I highly recommend the FreeEOS code
> 
> FreeEOS.sourcforge.net
> 
> Not actively developed anymore, alas, but still the best available code for on-the-fly EOS calculations that deal with partial ionisation and neutral species.  If you're only interested in fully-ionized region then Frank's codes are the way to go.
> 
> I have used FreeEOS in MESA and it works, but very slowly ( not thread-safe).  We even used to distribute tables made with it, back in the Dark Ages.
> 
> Aaron
> 
> 
> 
> On Wednesday, October 21, 2015, Richard Townsend <rhtownsend at icloud.com> wrote:
> Hi folks —
> 
> I believe the MESA EOS tables are calculated for one specific metal mixture. Has anyone ever examined the effect this might have on stellar structure, especially on the presence (or absence) of convection in partial ionization zones?
> 
> cheers,
> 
> Rich
> 
> 
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