[Mesa-users] Reformatting MESA mod models

Pau A.S. lamarededeusenyor at googlemail.com
Sun Aug 18 10:23:10 UTC 2024


Dear all,

I am running a code which uses as input a stellar model which was evolved
with tycho. I am using MESA now and I need to give the output of MESA the
tycho ordering, which was an ascii file with this information (14 columns).

# 1:Enclosed mass m 2:Radius at m 3:Pressure at m 4:Density at m 5:H fraction chem.
abundance by mass 6: Same metals 7: Same He3 8: Same C12 9: Same C13
10:Same N14 11:Same N15 12:Same O16 13:SameO17 14:Same O18

I am not sure where is this information in the MESA models. For instance, I
have this file "5M_at_TAMS.mod" with the following columns:

1: lnd 2:lnT 3:lnR 4:L 5:dq 6:mlt_vc 7:h1 8:he3 9:he4 10:c12 11:n14 12:o16
13:ne20 14:mg24

The information in the header explains that:

lnd=ln(density), lnT=ln(temperature), lnR=ln(radius), L=luminosity,
dq=fraction of total mstar in cell; remaining cols are mass fractions.

I am not sure how to convert MESA's information into the information I
need. Could anyone help me here a bit out?

Thanks!
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