[Mesa-users] An error in extras file for branching ratios of pp2 and pp3

[Thomas Steindl]

Hello,

sorry for turning in very late to this discussion. 
Maybe to clear things up a little: The original run_star_extras file was created by Frank Timmes at the summer school 2019 because I was interested in the burning rate of one specific reaction and it has been of great help. But, in a private mail discussion it turned out, that the output of the run_star_extras file would not fit with the output from pp, cno and other reaction categories implemented in MESA. We found that the rate put out by the run_star_extras had to be modified by the abundance of the reaction partners and other factors.
There exists a run_star_extras file that corrects for these factors but unfortunately this is not the file that you have used. I apologize for not pointing that out earlier. I hope to come back to you with a corrected run_star extras file tomorrow morning.

Thomas


> Am 23.01.2020 um 23:03 schrieb Jaime Montes Norniella via Mesa-users <mesa-users at lists.mesastar.org>:
> 
> The last run.extras.f for the branching ratios of pp chain was a minor mistake: 
> The profile returns the log of eps_nuc  of pp2 and pp3 but the names of the new columns are eps_nuc. of  pp2 and pp3 
> The bug is corrected in this new file.
> 
> A big question is: 
> The values returned for a 1 solar mass star  and solar luminosity in mean sequence for log_eps_nuc of pp2 and pp3 are very high compared with the values returned in log10 of the ‘pp’ variable. Why?
> 
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> 
> <run_star_extras.f>

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