Relativistic compact stars with charged anisotropic matter

被引:33
作者
Maurya, S. K. [1 ]
Banerjee, Ayan [2 ]
Channuie, Phongpichit [3 ]
机构
[1] Univ Nizwa, Coll Arts & Sci, Dept Math & Phys Sci, Nizwa, Oman
[2] Durban Univ Technol, Fac Appl Sci, Dept Math, Durban, South Africa
[3] Walailak Univ, Sch Sci, Nakhon Si Thammarat 80160, Thailand
关键词
Class I spacetime; exact solutions; compact objects; electromagnetic mass models; ONE-PARAMETER GROUP; EQUATION-OF-STATE; GENERAL-RELATIVITY; FLUID SPHERES; CONFORMAL MOTIONS; MODELS; MASS; OBJECTS; INTERIOR; FAMILY;
D O I
10.1088/1674-1137/42/5/055101
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In this article, we perform a detailed theoretical analysis of new exact solutions with anisotropic fluid distribution of matter for compact objects subject to hydrostatic equilibrium. We present a family solution to the Einstein-Maxwell equations describing a spherically symmetric, static distribution of a fluid with pressure anisotropy. We implement an embedding class one condition to obtain a relation between the metric functions. We generalize the properties of a spherical star with hydrostatic equilibrium using the generalised Tolman-Oppenheimer-Volkoff (TOV) equation. We match the interior solution to an exterior Reissner-Nordstrom one, and study the energy conditions, speed of sound, and mass-radius relation of the star. We also show that the obtained solutions are compatible with observational data for the compact object Her X-l. Regarding our results, the physical behaviour of the present model may serve for the modeling of ultra compact objects.
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页数:13
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