Relativistic stars with polytropic equation of state

被引：43

作者：

Ngubelanga, Sifiso A. ^{[1
]}

Maharaj, Sunil D. ^{[1
]}

机构：

[1] Univ KwaZulu Natal, Astrophys & Cosmol Res Unit, Sch Math Stat & Comp Sci, Private Bag X54001, ZA-4000 Durban, South Africa

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2015年 / 130卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

NEUTRON-STAR; FLUID SPHERES; COMPACT STARS; MASS; RADIUS; BINARY;

D O I：

10.1140/epjp/i2015-15211-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：5

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