Stellar structure equations in Matlab?

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Discussion Overview

The discussion revolves around the use of Matlab to solve stellar structure equations, particularly in the context of neutron stars. Participants explore the applicability of these equations to neutron stars compared to conventional stars, as well as the challenges associated with programming and modeling in Matlab.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Alex requests a Matlab file for solving stellar structure equations to address a disagreement about their applicability to neutron stars.
  • Some participants question the effectiveness of a Matlab file in resolving the argument, suggesting that understanding the differences in stellar structures is more crucial.
  • One participant expresses a desire for numerical values under specific conditions to compare with reality.
  • Concerns are raised about the applicability of stellar structure equations to neutron stars, noting that the input terms would differ significantly from those of conventional stars.
  • A suggestion is made to write code for a "cold" neutron star, referencing specific papers that discuss the necessary modifications to the equations of state.

Areas of Agreement / Disagreement

Participants generally do not agree on the utility of Matlab files for the intended purpose, with multiple competing views on how to approach modeling neutron stars and the relevance of the stellar structure equations.

Contextual Notes

There are limitations regarding the assumptions about the input terms for neutron stars versus conventional stars, as well as the unresolved nature of how to effectively modify the equations for accurate modeling.

ctcah
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Does anyone have a Matlab file for solving the stellar structure equations that they wouldn't mind passing along? I'm trying to settle an argument with a friend that they can't really be used to describe nuetron stars and I don't have much programming experience.

Thanks,

Alex
 
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ctcah said:
Does anyone have a Matlab file for solving the stellar structure equations that they wouldn't mind passing along? I'm trying to settle an argument with a friend that they can't really be used to describe nuetron stars and I don't have much programming experience.

Thanks,

Alex

It's not clear how a Matlab file is going to settle your argument. If your friend doesn't understand how the structure of a neutron star differs from that of a conventional star, I don't think he will be swayed by the file.
 
SteamKing said:
It's not clear how a Matlab file is going to settle your argument. If your friend doesn't understand how the structure of a neutron star differs from that of a conventional star, I don't think he will be swayed by the file.

I just want something that can be used to give a numerical value for a given set of conditions and see how it differs from reality.
 
How do you plan on applying the stellar structure equations to a neutron star though? It's not like a neutron star has all the same input terms as a regular star, but a different result arises due to different physics. The input terms would all (almost all) be different. If you modify the equations enough, you might as well just model a neutron star. I don't see how a MATLAB file is going to help in this case either...
 
Nevermind, forget I asked anything.
 
You can write code for a "cold" neutron star. Take a look at the paper, "Astrophysical APL - Diamonds in the Sky," hosted at http://nicmosis.as.arizona.edu:8000/PUBLICATIONS/WHITEDWARF_TOTV.pdf. Although the paper is for a "cold" white dwarf, you'll need to use the equation of state for a degenerate neutron gas instead of a degenerate electron gas. An additional paper to loock at is "Structure of neutron stars with unified equations of state" hosted at http://arxiv.org/abs/1206.6922.

Hope this helps.
 

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