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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2010 Volume 92, Issue 3, Pages 147–151 (Mi jetpl1369)

This article is cited in 84 papers

GRAVITY, ASTROPHYSICS

On particles collisions in the vicinity of rotating black holes

A. A. Griba, Yu. V. Pavlovb

a Theoretical Physics and Astronomy Department, The Herzen University, St. Petersburg, Russia
b Institute of Problems of Mechanical Engineering, Russian Academy of Sciences

Abstract: Scattering of particles in the gravitational field of rotating black holes is considered. It is shown that scattering energy of particles in the centre of mass system can obtain very large values not only for extremal black holes but also for nonextremal ones. Extraction of energy after the collision is investigated. It is shown that due to the Penrose process the energy of the particle escaping the hole at infinity can be large. Contradictions in the problem of getting high energetic particles escaping the black hole are resolved.

Received: 09.06.2010

Language: English


 English version:
Journal of Experimental and Theoretical Physics Letters, 2010, 92:3, 125–129

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