[Mesa-users] Sommerfeld enhancement

Francis Timmes fxt44 at mac.com
Thu Sep 3 18:39:54 EDT 2020

the helmeos includes the effects of e+e- production in its 
thermodynamic quantities, with the actual physics coming from
the eos that builds the helmholtz free energy tables. 

that e+e- physics is solved by taking both the fermi-dirac integrals
and the root find on the electron chemical potential to the limits
of the arithmetic; no expansions are used or needed.



> On Sep 3, 2020, at 1:22 PM, Jeremy Sakstein <sakstein at hawaii.edu> wrote:
> Hi everyone,
> I’ve been trying to figure out if Sommerfeld enhancement is included in the electron-positron pair production rates but I seem to be failing miserably.
> I think the correct EOS of relevance is HELM.
> Does anyone know if this is included, possibly with a reference?
> Cheers,
> Jeremy
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