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- Title
A generalized polytropic equation of state stellar model with anisotropic charged fluid.
- Authors
Afzal, Wardah Aroosh; Feroze, Tooba
- Abstract
In this article, assuming the generalized polytropic equation of state and suitable form of electric field intensity, new classes of anisotropic charged fluid solutions to the Einstein-Maxwell equations in paraboloidal geometry are obtained, representing relativistic charged compact stellar objects. These exact polytropic solutions for different variations of the adjustable parameter, known as the polytropic index η (η = 1/2, 1, 2), satisfy all physically admissible conditions. Furthermore, a comprehensive graphical analysis of neutron star PSR J 0740 + 6620 is provided. The matter composition obeys stability conditions; the hydrostatic equilibrium by means of the Tolman–Oppenheimer–Volkoff equation, viable trends of stability through Harrison–Zeldovich–Novikov criterion, the relativistic adiabatic index and Abreu's criterion.
- Subjects
EINSTEIN, Albert, 1879-1955; EINSTEIN-Maxwell equations; HYDROSTATIC equilibrium; EQUATIONS of state; NEUTRON stars; ELECTRIC fields; FLUIDS
- Publication
Astrophysics & Space Science, 2024, Vol 369, Issue 1, p1
- ISSN
0004-640X
- Publication type
Article
- DOI
10.1007/s10509-024-04273-y