ISOTROPIC CASES OF STATIC CHARGED FLUID SPHERES IN GENERAL RELATIVITY

被引:37
作者
Das, Basanti [1 ]
Ray, Pratap Chandra [2 ]
Radinschi, Irina [3 ]
Rahaman, Farook [4 ]
Ray, Saibal [5 ]
机构
[1] Belda Prabhati Balika Vidyapith, W Midnapur 721424, W Bengal, India
[2] Govt Coll Engn & Leather Technol, Dept Math, Kolkata 700098, W Bengal, India
[3] Gh Asachi Tech Univ, Dept Phys, Iasi 700050, Romania
[4] Jadavpur Univ, Dept Math, Kolkata 700032, W Bengal, India
[5] Govt Coll Engn & Ceram Technol, Dept Phys, Kolkata 700010, W Bengal, India
来源
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2011年 / 20卷 / 09期
关键词
General relativity; charge sphere; compact star; COSMIC STRINGS; VACUUM; EQUATIONS; MASS;
D O I
10.1142/S0218271811019724
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper we study the isotropic cases of static charged fluid spheres in general relativity. For this purpose we consider two different specializations and under these we solve the Einstein-Maxwell field equations in isotropic coordinates. The analytical solutions thus obtained are matched to the exterior Reissner-Nordstrom solutions which concern the values for the metric coefficients e(nu) and e(mu). We derive the pressure, density and pressure-to-density ratio at the center of the charged fluid sphere and boundary R of the star. Our conclusion is that static charged fluid spheres provide a good connection to compact stars.
引用
收藏
页码:1675 / 1687
页数:13
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