A Class of Super Dense Stars Models Using Charged Analogues of Hajj-Boutros Type Relativistic Fluid Solutions

被引:9
作者
Pant, Neeraj [1 ]
Pradhan, N. [2 ]
Murad, Mohammad Hassan [3 ]
机构
[1] Natl Def Acad, Dept Math, Pune 411023, Maharashtra, India
[2] Natl Def Acad, Dept Phys, Pune 411023, Maharashtra, India
[3] BRAC Univ, Dept Math & Nat Sci, Dhaka 1215, Bangladesh
关键词
General relativity; Relativistic astrophysics; Exact solution; Reissner-Nordstrom; Isotropic coordinates; Perfect fluid sphere; Charged fluid sphere; Compact stars; Relativistic stars; Equation of state; GENERAL-RELATIVITY; PERFECT FLUID; SPHERES;
D O I
10.1007/s10773-014-2147-0
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a spherically symmetric solution of the general relativistic field equations in isotropic coordinates for perfect charged fluid, compatible with a super dense star modeling. The solution is well behaved for all the values of Schwarzschild parameter u lying in the range 0 < u < 0.1727 for the maximum value of charge parameter K = 0.08163. The maximum mass of the fluid distribution is calculated by using stellar surface density was rho(b) = 4.6888 x 10(14)g cm(-3). Corresponding to K = 0.08 and u(max) = 0.1732, the resulting well behaved solution has a maximum mass M = 0.9324M(circle dot) and radius R = 8.00 and by assuming rho(b) = 2 x 10(14)g cm(-3) the solution results a stellar configuration with maximum mass M = 1.43M(circle dot) and radius R-b = 12.25 km. The maximum mass is found increasing with increasing K up to 0.08. The well behaved class of relativistic stellar models obtained in this work might has astrophysical significance in the study of internal structure of compact star such as neutron star or self-bound strange quark star like Her X-1.
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页码:3958 / 3969
页数:12
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