[Mesa-users] Evolution of a 9M_sun ZAMS star up to to core collapse

[Amar Aryan]

Dear fxt,

Here I attach the png plot almost at the end of the evolution
(inlist_finish).

[image: grid_H_046755.png]


With best regards,
Amar

On Sun, Apr 4, 2021 at 8:24 AM Francis Timmes <fxt44 at mac.com> wrote:

> hi amar,
>
> will you share a plot of the final mass fractions from this 9 msun run?
>
> fxt
>
>
>
>
>
>
> > On Apr 3, 2021, at 10:29 AM, Amar Aryan via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
> >
> > Dear Bill,
> >
> > Many thanks for your prompt reply. Here I wish to mention that a few
> months back, we were struggling to get going with a 12M_sun ZAMS star
> progenitor but with some changes, we could successfully model ( with
> excessive bits of help from Jared Goldberg ) the 12M_sun ZAMS star and
> further got successful STELLA calculations providing the light curves and
> velocity evolutions.
> >
> > With best regards,
> > Amar
> >
> >
> > From: paxton at kitp.ucsb.edu
> > To: amar at aries.res.in
> > Cc: mesa-users at lists.mesastar.org, Amararyan941 at gmail.com
> > Sent: Saturday, April 3, 2021 10:48:21 PM
> > Subject: Re: [Mesa-users] Evolution of a 9M_sun ZAMS star up to to core
> collapse
> >
> > just a quick comment:  i’ve never been able to get 9M beyond the
> off-center Neon flash.  Perhaps i’m just too impatient, but it takes longer
> than I’m willing to wait for the burning to make its way slowly to the
> center.  with more massive models, the neon ignition is at the center so
> things go smoothly.   you are welcome to try, but it might go easier if you
> can redefine your problem to 12M or more.
> >
> > cheers,
> > bill
> >
> >
> > On Apr 3, 2021, at 10:12 AM, Amar Aryan via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
> >
> > Dear MESA user team,
> >
> > I am trying to make a 9M_sun ZAMS model with Z=0.02 that explodes as a
> type IIb SN. Gladly, I could evolve the star up to the stage of Fe core
> infall, using the default star/test_suit/example_make_pre_ccsn with few
> modifications. Although I could evolve the model up to Fe core infall, I am
> not sure about a few parameters to be physical :
> >
> > Now here I briefly mention the changes in the inlist_files of
> example_make_pre_ccsn directory :
> >
> > a) In inlist_common, varcontrol_target = 1d-3,
> >                            mixing_length_alpha = 2.0
> >             mixing_delta_coeff_for_highT = 2.5
> >                                                               f = 0.007
>   (Not sure if this is allowed!)
> >                                                              f0= 0.001
> >
> > b) In  inlist_set_alpha_mlt, x_ctrl(21) = 2.5
> >                                            x_ctrl(22) = 1.5
> >                                            x_ctrl(23) = 0.5
> >
> > 1) In Inlist_to_zams, varcontrol_target = 1d-5
> >
> > 2) In inlist_to_zams, varcontrol_target = 1d-5
> >
> > 3) In inlist_remove, varcontrol_target = 1d-5,
> >                                      mass_change = -1d-4
> >                      star_H_mass_min_limit = 0.013
> >
> > 4) In inlist_before_remove,  ! varcontrol_target = 1d-2   (Not used)
> >                      Steps_to_take_before_terminate = 2
> >
> > 5) In inlist_to_si_burn, varcontrol_target = 5d-4,
> >                               mixing_length_alpha = 0.01 (seems to be
> too low but anything greater than 0.01 did not worked, setting this to 0
> also failed!!)
> > 6) In inlist_to_lgT9.9, varcontrol_target = 5d-4
> >
> > Please provide your valuable suggestions regarding f, f0,
> mixing_lenth_alpha, and other major mistakes if any in the above parameters.
> >
> > With best regards,
> > Amar
> >
> >
> >
> > _______________________________________________
> > mesa-users at lists.mesastar.org
> > https://lists.mesastar.org/mailman/listinfo/mesa-users
> >
> >
> >
> >
> >
> > _______________________________________________
> > mesa-users at lists.mesastar.org
> > https://lists.mesastar.org/mailman/listinfo/mesa-users
> >
>
>
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