Particle Creation in the Marginally Bound, Self Similar Collapse of Inhomogeneous Dust

Details Particle Creation in the Marginally Bound, Self Similar Collapse of Inhomogeneous Dust Particle Creation in the Marginally Bound, Self Similar Collapse of Inhomogeneous Dust

1998-02-16

arxiv.org/abs/gr-qc/9802035v2

Nucl.Phys. B532 (1998) 361-375

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, 4 figures. Version to appear in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(98)00446-5

We consider the evaporation of the (shell focusing) naked singularity formed during the self-similar collapse of a marginally bound inhomogeneous dust cloud, in the geometric optics approximation. We show that, neglecting the back reaction of the spacetime, the radiation on $\scrip$ tends to infinity as the Cauchy Horizon is approached. Two consequences can be expected from this result: (a) that the back reaction of spacetime will be large and eventually halt the formation of a naked singularity thus preserving the Cosmic Censorship Hypothesis and (b) matter attempting to collapse into a naked singularity will radiate away energy at an intense rate, thereby possibly providing experimental signatures of quantum effects in curved spacetimes.

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