General solution for a class of static charged spheres

被引:152
|
作者
Sharma, R [1 ]
Mukherjee, S
Maharaj, SD
机构
[1] Univ N Bengal, Dept Phys, Raja Rammohanpur 734430, W Bengal, India
[2] Univ Natal, Sch Math & Stat Sci, Natal, RN, Brazil
关键词
Einstein-Maxwell equations; relativistic charged stars;
D O I
10.1023/A:1010272130226
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We find a class of solutions to the Einstein-Maxwell system for a charged sphere with a particular choice of the electric field intensity by assuming a particular form for the hypersurfaces {t = constant}. In the uncharged limit we regain static stars studied previously. A qualitative analysis of the physical features of the model is performed. The presence of charge allows for more general behaviour than is the case for uncharged spheres. In particular we show that the causal signals are permitted over a wider range of parameters in the presence of charge. Also we show that our solutions satisfy a simple scaling relationship.
引用
收藏
页码:999 / 1009
页数:11
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