Effects of Pair Creation on Charged Gravitational Collapse

Details Effects of Pair Creation on Charged Gravitational Collapse Effects of Pair Creation on Charged Gravitational Collapse

2000-09-28

arxiv.org/abs/gr-qc/0009095v2

Phys.Rev. D63 (2001) 084006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTex, 27 pages, including 14 figures. Some points are clarified, typos corrected. Version accepted for publication in Phys.Re

Scientific paper

10.1103/PhysRevD.63.084006

We investigate the effects of pair creation on the internal geometry of a black hole, which forms during the gravitational collapse of a charged massless scalar field. Classically, strong central Schwarzschild-like singularity forms, and a null, weak, mass-inflation singularity arises along the Cauchy horizon, in such a collapse. We consider here the discharge, due to pair creation, below the event horizon and its influence on the {\it dynamical formation} of the Cauchy horizon. Within the framework of a simple model we are able to trace numerically the collapse. We find that a part of the Cauchy horizon is replaced by the strong space-like central singularity. This fraction depends on the value of the critical electric field, $E_{\rm cr}$, for the pair creation.

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