EFFECTS OF ELECTROMAGNETIC FIELD ON GRAVITATIONAL COLLAPSE

被引：34

作者：

Sharif, M. ^{[1
]}

Abbas, G. ^{[1
]}

机构：

[1] Univ Punjab, Dept Math, Lahore 54590, Pakistan

来源：

MODERN PHYSICS LETTERS A | 2009年 / 24卷 / 31期

关键词：

Electromagnetic field; gravitational collapse; cosmological constant; PERFECT FLUID COLLAPSE; COSMOLOGICAL CONSTANT; SINGULARITIES;

D O I：

10.1142/S0217732309030916

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, the effect of electromagnetic field has been investigated on the spherically symmetric gravitational collapse with the perfect fluid in the presence of positive cosmological constant. Junction conditions between the static exterior and non-static interior spherically symmetric spacetimes are discussed. We study the apparent horizons and their physical significance. It is found that electromagnetic field reduces the bound of cosmological constant by reducing the pressure and hence collapsing process is faster as compared to the perfect fluid case. This work gives the generalization of the perfect fluid case to the charged perfect fluid. Results for the perfect fluid case are recovered.

引用

页码：2551 / 2563

页数：13

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