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

Warrick Ball wball at bison.ph.bham.ac.uk
Mon Apr 9 10:38:38 EDT 2018


Hi Gon\E7alo,

You only sent the inlist for the astero module, not for MESA star itself 
(i.e. the file with &star_job and &controls).  I can't guarantee that I'm 
running the same thing as you unless you send that inlist too.

W


------------
Warrick Ball
Postdoc, School of Physics and Astronomy
University of Birmingham, Edgbaston, Birmingham B15 2TT
wball at bison.ph.bham.ac.uk
+44 (0)121 414 4552

On Mon, 9 Apr 2018, gnmandrade at hotmail.com wrote:

> Hi Warrick,
>
>
> I had already done that!
>
> I leave my inlist as an attachment. Thanks for your help!
>
>
> Cheers,
>
> Gon\E7alo Andrade
>
>
> ________________________________
> De: Warrick Ball <wball at bison.ph.bham.ac.uk>
> Enviado: 9 de abril de 2018 15:21
> Para: Gon\E7alo Andrade
> Cc: mesa-users at lists.mesastar.org
> Assunto: Re: [Mesa-users] Model a star in the HR diagram
>
> Hi Gon\E7alo,
>
> First, make sure that the \chi^2 has no seismic component by setting
> `chi2_seismo_fraction` to 0 in `&astero_search_controls`.
>
> Second, make sure that you're telling the `astero` module that there
> aren't any frequencies by setting `nl0`, `nl1`, `nl2` and `nl3` all to 0
> (same inlist).  I haven't tested but I suspect that if you won't need this
> after the first step above.
>
> I'm hoping that resolves your issues.  Please do share your inlists anyway
> though, in case that isn't the solution.  Don't hesitate to include
> inlists with your opening emails.  They're small and it saves us having to
> ask for them, which we probably will!
>
> Cheers,
> Warrick
>
>
> ------------
> Warrick Ball
> Postdoc, School of Physics and Astronomy
> University of Birmingham, Edgbaston, Birmingham B15 2TT
> wball at bison.ph.bham.ac.uk
> +44 (0)121 414 4552
>
> On Mon, 9 Apr 2018, 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,
>>
>> Gon\E7alo Andrade
>>
>>
>


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