[mesa-users] mesa bug fix round 2 -- 3251

Bill Paxton paxton at kitp.ucsb.edu
Sat Apr 30 10:41:55 EDT 2011


gfortran didn't like the changes I made for round 1 of the bug fix, so we're going a second round.
3251 seems happy with both ifort and gfortran, at least on my mac.
as usual, I regret the bugs, but I can promise to give them top priority.
sorry for the inconvenience.

I should also mention a change in the opacity tables.   
We now have a separate set of tables for folks who'd like to use
the Freedman low T tables -- 
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request them by setting 
	kappa_file_prefix = 'gs98f'
that will give you tables that are like gs98 except at low T
where they use Freedman values where possible.
this is a huge improvement for brown dwarfs & planets
since it gives us real data to go on for logR > 1 whereas
without it we were forced to hope that convection would
make the opacities irrelevant.

this plot shows the new regions for gs98f.
the excellent coverage at low T is an enabling step
for modeling irradiated giant planets that have
large isothermal regions at the surface that are
radiative and therefore require accurate opacities.
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if you want Freedman + some abundances other than gs98,
let me know -- you can easily produce other combinations
in the kap/preprocessor. 


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