[Mesa-users] Simulation-calibrated MLT parameters and atmospheric T(tau) relations

[Warrick Ball]

Hi everyone,

In a pair of 2014 papers [1][2], Regner Trampedach and collaborators fit 
mixing-length theory (MLT) parameters (usually \alpha_\mathrm{MLT} or 
similar) and the corresponding atmospheric T(tau) relations to a suite of 
3D radiation-coupled hydrodynamic (3D RHD) simulations.  I've implemented 
these MLT parameters and T(tau) relations for MESA r9575 in the attached 
archive and the results will be presented in a just-submitted paper led by 
Jakob Mosumgaard.  (Jakob has implemented the same thing in GARSTEC.)

The attached tarball (hydro_Ttau.tar.gz) contains the code, data, examples 
and a short readme, which I've also attached separately (README.md).  If 
you have any comments (including on the README file), let me know.

The idea behind the code is that, as long as you're within the logg-Teff 
range covered by the grid and believe the 3D RHD simulation results 
(bearing in mind they're computed at solar metallicity for a roughly GN93 
mixture), then the MLT parameter is no longer free and your stellar model 
will be computed with the matching atmospheric structure.

Cheers,
Warrick

[1] http://adsabs.harvard.edu/abs/2014MNRAS.442..805T
[2] http://adsabs.harvard.edu/abs/2014MNRAS.445.4366T

------------
Warrick Ball
Postdoc, School of Physics and Astronomy
University of Birmingham, Edgbaston, Birmingham B15 2TT
wball at bison.ph.bham.ac.uk
+44 (0)121 414 4552
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