Relativistic stars with polytropic equation of state
Sifiso A. Ngubelanga, Sunil D. Maharaj
TL;DR
This paper derives new exact solutions for relativistic stars with anisotropic matter and electric fields using a polytropic equation of state, matching observed stellar masses including PSR J1903+327.
Contribution
It introduces novel classes of solutions for polytropic stars with anisotropy and electric fields within Einstein-Maxwell equations.
Findings
Generated new exact solutions for various polytropic indices.
Model can reproduce observed stellar masses, including PSR J1903+327.
Solutions are physically well-behaved.
Abstract
We consider the Einstein-Maxwell system of equations in the context of isotropic coordinates for matter distributions with anisotropy in the presence of an electric field. We assume a polytropic equation of state for the matter configuration. New classes of exact solutions are generated for different polytropic indices. The model is well behaved and we can regain masses of several observed objects, in particular we obtain the mass of the star PSR J1903+327.
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Taxonomy
TopicsCosmology and Gravitation Theories · Geophysics and Gravity Measurements · Material Science and Thermodynamics