[Mesa-users] Question about modelling a star with neutron star at its core

[Sushovan Mondal]

Hello everyone,

I am going through these instructions and trying to understand step by
step. I have a question regarding the general relativistic effects near the
neutron star core. In the original paper by Thorne and Zytkow (and later by
others), the general relativistic effect is incorporated in the stellar
structure. But the general relativistic effects (like TOV equations, and
others) are not included in MESA. Can someone please guide me on how to
incorporate general relativistic effects?

Thanking you in advance,

Regards,
Sushovan

On Sat, Nov 7, 2020 at 12:16 AM Francis Timmes <fxt44 at mac.com> wrote:

> one should walk through "getting started"
> http://mesa.sourceforge.net/starting.html
> https://youtu.be/b0bZ9FAgyrg
>
> and "using pgstar"
> http://mesa.sourceforge.net/pgstar.html
> https://youtu.be/JZFa4WURztI
>
> and the "beyond inlists" mesa summer school material
> https://jschwab.github.io/mesa-2019/
>
> fxt
>
>
>
>
> > On Nov 6, 2020, at 10:58 AM, Sushovan Mondal via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
> >
> > Dear Sir,
> >
> > Thank you for your kind response. I have gone through the emails and it
> will help me a lot. As I am very new to MESA, so I have a very trivial
> doubt about the working process of MESA. I think there are various options
> available in the default files, and if I want to change those values then I
> have to make inlists to include those changes (otherwise the model will
> take the default values). Is this the way the process works? If I am wrong,
> please correct me. Is there any tutorial available for beginners? Though
> this is a very basic question, it will help me to understand the process
> better.
> >
> > Thanks in advance,
> >
> > Regards,
> > Sushovan
> >
> > On Wed, Nov 4, 2020 at 7:58 PM Aaron Dotter <aaron.dotter at gmail.com>
> wrote:
> > Hi Sushovan,
> >
> > The answer is that there is no existing framework to make such an object
> but it may be possible to do.
> >
> > There is a recent thread about this here:
> >
> > https://lists.mesastar.org/pipermail/mesa-users/2020-August/011763.html
> >
> > Please read through those emails and then come back to us if you have
> further questions.
> >
> > Cheers,
> > Aaron
> >
> > On Wed, Nov 4, 2020 at 9:13 AM Sushovan Mondal via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
> > Hello everyone,
> >
> > I am a new user of MESA and trying to learn from MESA website. I want to
> model a star which has a neutron star at its core and a gaseous envelope
> (about the size of solar radius or more) over it (more or less like a
> Thorne Zytkow object). Is it possible to model this type of star in MESA?
> As I am new here, can someone please guide me how do I do that (or any
> specific tutorial available to handle this problem)?
> >
> > Thanking you in advance,
> >
> > Regards,
> > Sushovan
> > _______________________________________________
> > 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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