Quark star model with charged anisotropic matter

被引：55

作者：

Sunzu, Jefta M. ^{[1
,2
]}

Maharaj, Sunil D. ^{[1
]}

Ray, Subharthi ^{[1
]}

机构：

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

[2] Univ Dodoma, Sch Math Sci, Dodoma, Tanzania

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2014年 / 354卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Gravitational potential; Linear equation of state; Quark matter; Measure of anisotropy; STRANGE STARS; MAXIMUM MASS; DENSITY; SPHERES; ANALOGS;

D O I：

10.1007/s10509-014-2131-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We find two new classes of exact solutions to the Einstein-Maxwell system of equations. The matter distribution satisfies a linear equation of state consistent with quark matter. The field equations are integrated by specifying forms for the measure of anisotropy and a gravitational potential which are physically reasonable. The first class has a constant potential and is regular in the stellar interior. It contains the familiar Einstein model as a limiting case and we can generate finite masses for the star. The second class has a variable potential and singularity at the centre. A graphical analysis indicates that the matter variables are well behaved.

引用

页码：517 / 524

页数：8

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