Quasi-Black Holes from Extremal Charged Dust

Details Quasi-Black Holes from Extremal Charged Dust Quasi-Black Holes from Extremal Charged Dust

2003-11-15

arxiv.org/abs/gr-qc/0311051v1

Phys.Rev. D69 (2004) 104004

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages

Scientific paper

10.1103/PhysRevD.69.104004

One can construct families of static solutions that can be viewed as interpolating between nonsingular spacetimes and those containing black holes. Although everywhere nonsingular, these solutions come arbitrarily close to having a horizon. To an observer in the exterior region, it becomes increasingly difficulty to distinguish these from a true black hole as the critical limiting solution is approached. In this paper we use the Majumdar-Papapetrou formalism to construct such quasi-black hole solutions from extremal charged dust. We study the gravitational properties of these solutions, comparing them with the the quasi-black hole solutions based on magnetic monopoles. As in the latter case, we find that solutions can be constructed with or without hair.

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