[Mesa-users] create a neutron star model

[Farag, Ebraheem]

Hello,

My limited understanding is that to model a neutron star core, one would need to solve the TOV equation directly with a nuclear EOS, both of which are not contained within MESA in its current form. There are perhaps better software instruments suited to modeling neutron star cores, maybe GR1D, NSCool, or some python tools like TOVsolver for static NS cores from an EOS? Other MESA-users community members might be able to offer better suggestions.

-EbF
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From: Mesa-users <mesa-users-bounces at lists.mesastar.org> on behalf of 吴涛 <wutao at ynao.ac.cn>
Sent: Sunday, July 13, 2025 9:48 PM
To: mesa-users at lists.mesastar.org <mesa-users at lists.mesastar.org>
Subject: [Mesa-users] create a neutron star model

Dear colleagues,

I'm reaching out to seek your guidance on creating a neutron star model. I'm currently teaching my students about stellar structure and evolution, and I'm particularly interested in demonstrating the inner profiles of neutron stars as an example.

I'm wondering how to create a neutron star model using MESA. I've noticed that in the star/test_suite, there are three packages (ns_h, ns_he, and ns_c in r24) which are used in building envelopes, but they don't seem to include the inner structure. Could you provide some guidance on this?

I truly appreciate any suggestions or guidance you can provide on this matter. Thank you in advance for your help.


Best wishes!

Tao


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Dr. WU Tao (吴涛)

Stellar Astrophysics Group<https://ynao.cas.cn/zzq/hxwlz/index.html>,

Yunnan Observatories, Chinese Academy of Sciences<https://ynao.cas.cn/>

中国科学院云南天文台，恒星物理研究组
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