Compact star modeling with quadratic equation of state in Tolman VII space-time

被引：45

作者：

Bhar, P. ^{[1
]}

Singh, K. N. ^{[2
]}

Pant, N. ^{[3
]}

机构：

[1] Govt Gen Degree Coll, Dept Math, Hooghly 712409, W Bengal, India

[2] Natl Def Acad, Dept Phys, Pune 411023, Maharashtra, India

[3] Natl Def Acad, Dept Math, Pune 411023, Maharashtra, India

来源：

INDIAN JOURNAL OF PHYSICS | 2017年 / 91卷 / 06期

关键词：

General relativity; Compact stars; Quadratic EoS; Anisotropy; EMBEDDING CLASS-I; DYNAMICAL INSTABILITY; GENERAL-RELATIVITY; SKEA SPACETIME; NEUTRON-STAR; QUARK STARS; SPHERES; MASS; FLUID; STABILITY;

D O I：

10.1007/s12648-017-0963-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In present article we extend one of our earlier works Bhar et al. (Astrophys. Space Sci. 359: 13, 2015) by considering quadratic equation of state for the matter distribution. The solution has its distinct feature as the EoS chosen is quadratic and is presenting for the first time in Tolman VII background. The solution is well behaved in nature in all respects and satisfies energy conditions. The solution is also free from central singularities and satisfies Buchdahl condition. Using this solution, we optimized the masses and radii of few well-known compact stars namely Her X-1, RX J1856.5-3754, PSR B0943 + 10, PSR B1913 + 16 and Cyg X-2 with their experimentally observed values.

引用

页码：701 / 709

页数：9

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