Effects of Electromagnetic Field on Gravitational Collapse

Abstract

In this paper, the effect of electromagnetic field has been investigated on the spherically symmetric 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.

17 pages, accepted for publication in Mod. Phys. Lett A

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• The geometry of photon surfaces
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• Naked singularities and Seifert's conjecture
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• Structure Scalars In Charged Plane Symmetry
• Charged Cylindrical Collapse of Anisotropic Fluid
• Dynamics of Non-adiabatic Charged Cylindrical Gravitational Collapse
• Effects of Electromagnetic Field on the Dynamical Instability of Expansionfree Gravitational Collapse
• Effects of f(R) Dark Energy on Dissipative Anisotropic Collapsing Fluid
• Dynamics of Charged Plane Symmetric Gravitational Collapse
• Charged Perfect Fluid Cylindrical Gravitational Collapse
• Gravitational Collapse: Expanding and Collapsing Regions
• Gravitational Charged Perfect Fluid Collapse in Friedmann Universe Models
• Self-gravitating spheres of anisotropic fluid in geodesic flow
• Singularity in Gravitational Collapse of Plane Symmetric Charged Vaidya Spacetime