Charged analogue of Vlasenko-Pronin superdense star in general relativity

被引:1
作者
S. K. Maurya
Y. K. Gupta
机构
[1] Indian Institute of Technology Roorkee,Department of Mathematics
来源
Astrophysics and Space Science | 2011年 / 333卷
关键词
Charged fluids; Reissner-Nordstrom metric; Superdense star; General relativity;
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学科分类号
摘要
In this article we have derived a set of three static spherical symmetric well behaved solutions of Einstein-Maxwell field equations is obtained for a specific choice of electric field involving a parameter K. The solutions so obtained can be seen as a charge analogue of the neutral solution due to Vlasenko and Pronin. The physical features of solutions so obtained and that of Vlasenko and Pronin are investigated subject to the reality and the causality conditions i.e. Pressure, density (greater than pressure), pressure-density ratio and velocity of sound (less than the velocity of light) are positive and monotonically decreasing and the electric intensity is monotonically increasing in nature away from the centre. The maximum mass and radius occupied by the neutral solution are 2.1434 MΘ and 16.7300 km respectively. For the charged solution, overall maximum mass and corresponding radius are found to be 6.8714 MΘ and 20.6166 km respectively (for K=1.343).
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页码:149 / 160
页数:11
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