[Mesa-users] Li depletion due to thermohaline mixing

[Matteo Cantiello]

Hi Debasish,

That's great to hear!
Do you want to share what was missing / how did you figure things out?
That could be useful for other MESA users trying similar things.

Cheers,

Matteo


--
Matteo Cantiello - https://www.stellarphysics.org/
Research Scientist,  CCA, Flatiron Institute
Visiting Associate Researcher, Princeton University

Sent via Superhuman <https://sprh.mn/?vip=matteo.cantiello@gmail.com>


On Wed, Nov 23, 2022 at 11:34 PM, Debasish Dutta <
debasishdutta1707 at gmail.com> wrote:

> Thank you very much for your help. I was able to get the plots.
>
> Regards,
> Debasish
>
> On Fri, 18 Nov 2022 at 00:22, Debasish Dutta <debasishdutta1707 at gmail.com>
> wrote:
>
> I am trying to get a qualitative comparison with Schwab 2020.  My initial
> conditions are a bit different than Schwab has used. The A(Li) I have
> plotted is the astronomical scale for logarithmic abundances.
>
> Thanks,
> Debasish
>
> On Fri, 18 Nov 2022 at 00:13, Matteo Cantiello <matteo.cantiello at gmail.com>
> wrote:
>
> If you want to reproduce/compare  Fig.1 from Schwab 2020, first you might
> want to plot the same quantities. Are you plotting A(Li) on the x-axis
> (astronomical scale for logarithmic abundances)?
>
>
>
> --
> Matteo Cantiello - https://www.stellarphysics.org/
> Research Scientist,  CCA, Flatiron Institute
> Visiting Associate Researcher, Princeton University
>
> Sent via Superhuman <https://sprh.mn/?vip=matteo.cantiello@gmail.com>
>
>
> On Thu, Nov 17, 2022 at 10:17 AM, Debasish Dutta <debasishdutta1707 at gmail.
> com> wrote:
>
> Sir,
> I am getting a plot like this
>
>
> I am expecting something like this: (from a paper by Josiah Schwab)
>
>
> As can be seen, there are two Li dilution episodes, whereas I am unable to
> get the second dip, after invoking thermohaline mixing. I would be thankful
> if you could suggest where I am going wrong.
>
> Thanks,
> Debasish
>
> On Thu, 17 Nov 2022 at 23:03, Matteo Cantiello <matteo.cantiello at gmail.com>
> wrote:
>
> It would be useful to show a plot of what you are seeing (e.g. Surface
> Lithium as function of stellar luminosity) and explain a bit better why
> this is not matching your expectations. That way it will be easier to give
> you suggestions on how to move forward.
> Cheers,
>
> Matteo
>
>
> --
> Matteo Cantiello - https://www.stellarphysics.org/
> Research Scientist,  CCA, Flatiron Institute
> Visiting Associate Researcher, Princeton University
>
> Sent via Superhuman <https://sprh.mn/?vip=matteo.cantiello@gmail.com>
>
>
> On Thu, Nov 17, 2022 at 7:54 AM, Debasish Dutta <mesa-users at lists.
> mesastar.org> wrote:
>
> Hi,
> I am fairly new to MESA and I am trying to see the surface Li depletion in
> the RGB phase in low mass stars due to thermohaline mixing. I used the
> 1M_pre_ms_to_wd test suite and accordingly made the necessary changes to
> incorporate thermohaline mixing. However, I am not getting the desired
> result. I could see some further depletion, but it occurs as an overall
> depletion and not in stages (like first due to the FDU and then due to
> thermohaline mixing; I should have seen Li depletion in two stages).  I
> have attached my inslists.
>
> Thanks and regards
> Debasish
>
> _______________________________________________
> mesa-users at lists.mesastar.org
> https://lists.mesastar.org/mailman/listinfo/mesa-users
>
>
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