[Mesa-users] Question regarding differences between version 10398 and version 15140

[Earl Bellinger]

Dear Bear,

Yes indeed:
https://docs.mesastar.org/en/release-r21.12.1/changelog.html

Best wishes,
Earl

On Tue, Feb 8, 2022 at 11:51 AM Bear Ealeal via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Dear Warrick,
> Thank you very much, I will try that. Is there a list of all the
> differences between versions?
> Thanks,
> Ealeal
>
>
>
>
> On Monday, February 7, 2022, 11:51:32 AM GMT+2, Warrick Ball <
> w.h.ball at bham.ac.uk> wrote:
>
>
> Hi Ealeal,
>
> I haven't run the two cases to compare but I would guess that this is
> because of the new option
>
>     pre_ms_relax_to_start_radiative_core = .true.
>
> which was added to `&star_job` in r15140.  After creating the pre-MS
> model, this control lets the model contract down the Hayashi track until a
> radiative core first forms.  This is certainly what's happening if you see
> output like
>
>     waiting for fully convective core to develop
>
> at the start of the run.
>
> Depending what you want to do, this may or not be what you want.  If not,
> you can disable it by setting that control to `.false.`.
>
> Cheers,
> Warrick
>
> ___________
>
> Warrick Ball
> Postdoc, School of Physics and Astronomy
> University of Birmingham, Edgbaston, Birmingham B15 2TT
> W.H.Ball at bham.ac.uk
> +44 (0)121 414 4552
>
> On Sun, 6 Feb 2022, mesa-users at lists.mesastar.org wrote:
>
> >
> >
> > Dear MESA users,
> >
> > I am trying to get into the new version of MESA (version 15140). So I
> run a simple comparison:
> >
> > I run test suits of 1MS_pre_MS to WD in both the old version I had:
> 10398 and the version of 15140.
> >
> > I understand differences can occur since the examples are not
> necessarily the same in the inlist or in the defaults of controls or star
> jobs.
> >
> > So, I looked at the first value of the radius  in the history file at
> the first time of 10^-5 year in both versions:
> >
> > In 15140 version it is:  logR = 2.8239618681609757E-001
> >
> > In the 10398 version it is:  logR = 1.4680706932337271E+000
> >
> > Does anyone know why? It is a significant difference, and it appears to
> be a change in the preliminary conditions of MESA, or am I missing
> something?
> >
> > Thank you very much,
> >
> > Ealeal
> >
> >
> >
> >
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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