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Event horizons and apparent horizons in spherically symmetric geometries

Authors
  • Malec, Edward
Type
Published Article
Publication Date
Feb 11, 1994
Submission Date
Feb 11, 1994
Identifiers
DOI: 10.1103/PhysRevD.49.6475
Source
arXiv
License
Unknown
External links

Abstract

Spherical configurations that are very massive must be surrounded by apparent horizons. These in turn, when placed outside a collapsing body, have a fixed area and must propagate outward with a velocity equal to the velocity of radially outgoing photons. That proves, within the framework of the (1+3) formalism and without resorting to the Birkhoff theorem, that apparent horizons coincide with event horizons in electrovacuum.

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