[Mesa-users] Si burning on TRho plot

Francis Timmes fxt44 at mac.com
Thu Oct 4 14:45:37 EDT 2018


i believe the burning lines in the Trho plot show when 
the energy generation rate is 1 erg/g/s for a pure composition.
the data is in $MESA_DIR/data/star_data/plot_info .

they were constructed by running a network on a sparse grid 
of temperatures and densities and finding the 1 erg/g/s contour.
their purpose is to provide approximate, visual indicators.

as you note, this was not was not done for silicon burning.
one could create a $MESA_DIR/data/star_data/plot_info/silicon_burn.data
from analytical approximations to silicon burning, and then with a 
tweak or two of the relevant pgstar routines, have the si burn contour shown.

fxt






> On Oct 4, 2018, at 10:07 AM, Nicholas Proietti via Mesa-users <mesa-users at lists.mesastar.org> wrote:
> 
> Hello, I am attempting to run a track that will display the very brief
> sequence of Silicon burning for a 20 solar mass star. The TRho plot
> defaults up to the O line, but I cannot find any options that can
> display a Si line. Any help would be greatly appreciated.
> 
> Nick Proietti
> -- 
> Nicholas Proietti
> Undergraduate Major in Physics and Minor in Astronomy
> State University of New York at Oswego
> nproiett@ <nproiett at oswego.edu>oswego.edu <nproiett at oswego.edu> |
> 518-952-5002
> _______________________________________________
> mesa-users at lists.mesastar.org
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