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Phys. Rev. D 74, 021502(R) (2006) [5 pages]

Rotating “black holes” with holes in the horizon

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Alexander Burinskii
Gravity Research Group, NSI, Russian Academy of Sciences, B. Tulskaya 52 Moscow 115191 Russia

Emilio Elizalde
Consejo Superior de Investigaciones Científicas (ICE/CSIC) & Institut d’Estudis Espacials de Catalunya (IEEC), Campus UAB, Facultat de Ciėncies, Torre C5-Parell-2a planta, E-08193 Bellaterra (Barcelona), Spain

Sergi R. Hildebrandt
Instituto de Astrofisica de Canarias, C/Via Lactea s/n, La Laguna, Tenerife, 38200, Spain

Giulio Magli
Dipartimento di Matematica del Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy

Received 28 November 2005; published 10 July 2006

Kerr-Schild solutions of the Einstein-Maxwell field equations, containing semi-infinite axial singular lines, are investigated. It is shown that axial singularities break up the black hole, forming holes in the horizon. As a result, a tubelike region appears which allows matter to escape from the interior without crossing the horizon. It is argued that axial singularities of this kind, leading to very narrow beams, can be created in black holes by external electromagnetic or gravitational excitations and may be at the origin of astrophysically observable effects such as jet formation.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.74.021502
DOI:
10.1103/PhysRevD.74.021502
PACS:
04.70.−s, 04.20.Jb, 97.60.Lf, 98.58.Fd
 
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