[Mesa-users] Model a star in the HR diagram

[Evan Bauer]

Oops, that directory for the test suite was supposed to be
	$MESA_DIR/star/test_suite/simplex_solar_calibration

> On Apr 9, 2018, at 12:06 PM, Evan Bauer <ebauer at physics.ucsb.edu> wrote:
> 
> Hi All,
> 
> Now seems like a good time to mention that newer versions of MESA (10108 and onward) contain an example designed to show general purpose simplex calibration without using the astero module:
> 	$MESA_DIR/test_suite/simplex_solar_calibration
> 
> This probably would serve as a better starting template in the future, especially if you don’t care about oscillations.
> 
> See also Appendix D.5 in instrument paper 4.
> 
> Cheers,
> Evan
> 
> 
>> On Apr 9, 2018, at 7:06 AM, Gonçalo Andrade via Mesa-users <mesa-users at lists.mesastar.org <mailto:mesa-users at lists.mesastar.org>> wrote:
>> 
>> Dear all,
>> 
>> 
>> I am currently using MESA and I need to make a model of a star as close as possible to a given T_eff and log(L).
>> 
>> Up to this moment I have been trying to use the solar_calibration example in the test_suite and the example in the Astero folder that is available inside the star directory, but I have encountered two main problems:
>> 
>> 1) I have tried to remove the oscillation computation, since I don't need it and it consumes time, by removing all the frequencies in the file "inlist_astero_search_controls" and by commenting the &mode sections in the gyre.in file but, once the models get close to the expected, it begins calculating the frequencies anyway.
>> 
>> 2) Ignoring the frequencies problem, I have managed to make small physics changes I needed and the calibration by simplex still functions perfectly fine. However, the moment I change the target T_eff and log(L) and the starting mass, alpha, etc, the code runs but always says it could not find chi^2 in that run, and does not present the results in the output file.
>> I have even tried doing a single run with a given mass, alpha, etc, and copying the resulting parameters to the target in the "inlist_astero_search_controls" and I still get the same result.
>> 
>> Are there any useful commands I might be missing?
>> If needed I can attach the inlists I am using. 
>> 
>> 
>> I grateful for any help you could give.
>> 
>> Best regards,
>> Gonçalo Andrade
>> 
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