[Mesa-users] inlist for ~2Ms star terminating on the TP-AGB, mesa v10398

amber lauer amberlauer at gmail.com
Wed Sep 5 12:46:32 EDT 2018


Hey Warrick, just a quick question about your minimal inlist_project.

Can you give me a rough idea how far you ran it before you reached 34
thermal pulses?

I ran the attached inlist, modeled after yours, and at 2.98e9 yrs, 50K
models, and a log L/L=~4, log Teff=!~3.6 it is still hung on the second
pulse. FYI it stays roughly at that position for about 30
k models, see attached images. I'm running v 10398, sdk from 1/18.  Thanks



[image: grid1_020000.png][image: grid1_030000.png]
[image: grid1_020000.png]


[image: grid1_050000.png]



On Tue, Apr 24, 2018 at 3:17 AM Warrick Ball via Mesa-users <
mesa-users at lists.mesastar.org> wrote:

> Hi,
>
> I realise this is basically resolved but the question piqued my curiosity.
> In my relatively-limited experience of modelling post-RGB stars, I thought
> low-mass MESA models usually started going through the TP-AGB without any
> special input.  So I spun up a default run in r10398 with the following
> almost trivial `inlist_project`:
>
>
> &star_job
>      create_pre_main_sequence_model = .true.
> / !end of star_job namelist
>
>
> &controls
>      initial_mass = 1.5 ! in Msun units
> / ! end of controls namelist
>
>
> Sure, it's slow, but I left it running overnight and after 18 hours on 2
> cores I count 34 thermal pulses.
>
> 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, 23 Apr 2018, mesa-users at lists.mesastar.org wrote:
>
> > Hi all,
> > Would anyone be able to point me to an inlist which generates a TP-AGB
> star (terminating during the thermal pulsations) that runs with MESA v
> 10398? I had success with the attached inlist ('inlist_tashibu_2017a') used
> by Tashibu et al (2017) in mesa version 8118, but it produces a number of
> parameter name and convergence issues in v10398. I have guessed at the
> appropriate changes when MESA points out a naming conflict, but have thus
> far failed to produce a converged model. One of my attempted adjusted
> inlists is attached as 'inlist_tashibu_editing_attempt'
> >
> > At the moment, I am not so interested in diagnosing why Tashibu's exact
> physical prescription no longer works, I would just like to be able to run
> a generic TP-AGB model *without* using one of MESA's pre-built prems models
> to start.
> >
> > Any insight is greatly appreciated,
> >
> >
> > Meridith Joyce
> > Ph.D. Candidate, Wilder Lab
> > Department of Physics and Astronomy
> > Dartmouth College
> >
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>

-- 
Amber Lauer
Postdoctoral Researcher
Triangle Universities Nuclear Lab
Duke University
amber.lauer at tunl.duke.edu <amber.lauer at duke.edu>
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