[Mesa-users] Initializing angle-averaged hydro model in MESA

[Pablo Marchant]

Hi Manos,

did you check this warning in star_job.defaults?

          ! NOTE: it is up to you to ensure that the current net isotopes
match
          ! the species in the composition file.
          ! You can set `show_net_species_info = .true.` to check the
isotopes in the net.

I can see that your compositions lists 19 isotopes. MESA has no way to know
what those isotopes are, and apparently you don't switch the network in
your inlist.

Cheers

On Tue, Dec 5, 2017 at 1:12 PM, Manos Chatzopoulos <
chatzopoulos at phys.lsu.edu> wrote:

> Dear mesa-users,
>
> We have been trying to use the great new feature offered by MESA to
> initialize an angle-averaged post-merger model using results from a
> three-dimensional hydrodynamics simulation of a merger. We extract the
> angle-averaged (in theta and phi) entropy.dat, composition.dat and j_rot
> (specific angular momentum) data from the simulation output (that was done
> in 3D), and then import the attached files in the attached inlist file
> taken from the relax_composition_j_entropy test_suite that we are using as
> a reference for this new MESA capability. The relaxations routines fail at
> the relax_inititial_composition step and we have been unable to figure out
> a work-around to the issue as of yet, so any help would be appreciated. We
> have made sure that we are using the proper units for the entropy, angular
> momentum profiles as described in the star_job.defaults file and as
> indicated in the supplied relax_composition_j_entropy problem but we might
> still be missing something simple as it's the first time we are playing
> around with this exciting new capability.
>
> Also, in addition to that question; in the latest MESA instrument paper
> there are references in the Appendix of using this new capability to evolve
> a post star-collision simulation done with the STARSMASHER code; is there a
> corresponding test_suite problem we may consult on that result, just in
> case that will help us too?
>
> Thank you all in advance,
>
> --
> Dr. Manos Chatzopoulos
> Assistant Professor
> Department of Physics & Astronomy
> Louisiana State University
> Nicholson #275
> Office # 225-578-2907
> Baton Rouge, LA 70803
> United States of America
> http://www.lsu.edu/physics/people/faculty/chatzopoulos.php
>
>


-- 
Pablo Marchant Campos
M.Sc on Astrophysics, Universidad Católica de Chile
PhD on Astrophysics, Argelander-Institut für Astronomie, Universität Bonn
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