corner
corner

Phys. Rev. D 65, 101501(R) (2002) [5 pages]

Why do naked singularities form in gravitational collapse?

Download: PDF (68 kB) Buy this article Export: BibTeX or EndNote (RIS)

Pankaj S. Joshi
Tata Institute for Fundamental Research, Mumbai, India

Naresh Dadhich
Inter-University Centre for Astronomy & Astrophysics, Pune, India

Roy Maartens
Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth PO1 2EG, Britain

Received 15 January 2002; published 2 May 2002

We investigate the key physical features that cause the development of a naked singularity, rather than a black hole, as the end state of spherical gravitational collapse. We show that sufficiently strong shearing effects near the singularity delay the formation of the apparent horizon. This exposes the singularity to an external observer, in contrast with a black hole, which is hidden behind an event horizon due to the early formation of an apparent horizon.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.65.101501
DOI:
10.1103/PhysRevD.65.101501
PACS:
04.20.Dw, 04.70.Bw