[mesa-users] Creating model grids with frequencies

[Dennis Stello]

Hi Warrick,

For what you want to do it sounds to me you need to follow the same 
approach you used for your CESAM grid (save e.g. FGONG files 
and run your favorite pulsation code on them).

Cheers
Dennis/

-- 
DENNIS STELLO | Senior Lecturer
School of Physics A28 | Faculty of Science

THE UNIVERSITY OF SYDNEY
Rm225, K90 | The University of Sydney | NSW | 2006
T +61 2 9036 5108  | F +61 2 9351 7726
E stello at physics.usyd.edu.au  | W http://www.physics.usyd.edu.au/~stello/


On Fri, 17 Jan 2014, Warrick Ball wrote:

> Anne,
>
> This is mostly to cover the main sequence and early subgiant branch, for 
> masses between about 0.8 and 1.8.  I'd usually be looking for the l = 0,1,2 
> with about 4 radial orders either side of the mode closest to nu_max from 
> scaling relations.  The primary purpose would currently be grid-based 
> modelling with large and small separations computed from the oscillation 
> spectra.
>
> I previously constructed smaller grids like this using CESAM, but the method 
> there was to save the FGONG model for each step and compute the oscillation 
> frequencies after the evolution was complete.
>
> I hope that helps answer the questions!
>
> W
>
> On Fri, 17 Jan 2014, Anne Thoul wrote:
>
>>  Dear Warrick,
>>
>>  I am not sure I understand what you want to do. What is the purpose of the
>>  grid? What mass range are you talking about? What frequency ranges
>>  do you want to include in your grid? Which modes? Depending on what you
>>  want to do, you have to choose carefully how and what frequencies you want
>>  to calculate.
>>
>>  Cheers,
>>  Anne
>>
>>  Le 17 janv. 2014 à 11:05, Warrick Ball
>>  <wball at astro.physik.uni-goettingen.de> a écrit :
>> 
>> >  Hi MESAlians,
>> > 
>> >  I'm about to try to use MESA to construct some model grids with 
>> >  oscillation frequencies.  I thought I'd ask if anyone has already 
>> >  developed tools for doing so before I try my own thing.  That is, just 
>> >  as one would have a collection of evolutionary tracks, for e.g. 
>> >  different metallicity, with, say, Teff, L and other observables, I'm 
>> >  going to construct grids that have oscillation frequencies, too.
>> > 
>> >  My basic strategy will be to start with the "pulse" test case.  I'll 
>> >  modify the inputs in the code for the desired ell and frequency ranges, 
>> >  then tinker with the ADIPLS input files for any other parameters I want 
>> >  to fix (e.g. how the normalized mode energy is normalized).  Because I'm 
>> >  not master coder, I'll probably just dump the output to some sort of 
>> >  text file, of which I'll make sense later, probably in Python.
>> > 
>> >  If anyone can offer some points, I'll be super grateful.  And, by the 
>> >  same token, I'll share what I end up doing and where I find any 
>> >  stumbling blocks.
>> > 
>> >  (Currently, I've got the output being spewed out for a given 
>> >  evolutionary run but I'm not choosing the frequency range wisely and 
>> >  getting a ton of stuff on the pre-MS.  I'll probably start from the ZAMS 
>> >  for now instead.)
>> > 
>> >  Cheers,
>> >  Warrick
>> > 
>> > 
>> > 
>> > 
>> >  ------------
>> >  Warrick Ball
>> >  Postdoc, Institut für Astrophysik Göttingen
>> >  wball at astro.physik.uni-goettingen.de
>> >  +49 (0) 551 39 
>> >  5069------------------------------------------------------------------------------
>> >  CenturyLink Cloud: The Leader in Enterprise Cloud Services.
>> >  Learn Why More Businesses Are Choosing CenturyLink Cloud For
>> >  Critical Workloads, Development Environments & Everything In Between.
>> >  Get a Quote or Start a Free Trial Today.
>> >  http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk_______________________________________________
>> >  mesa-users mailing list
>> >  mesa-users at lists.sourceforge.net
>> >  https://lists.sourceforge.net/lists/listinfo/mesa-users
>> 
>> 
>
>
> ------------
> Warrick Ball
> Postdoc, Institut für Astrophysik Göttingen
> wball at astro.physik.uni-goettingen.de
> +49 (0) 551 39 5069
>