Properties of particles in the ergosphere of black holes
1 A. Friedmann Laboratory for Theoretical Physics, St. Petersburg, Russia
2 Theoretical Physics and Astronomy Department The Herzen University, St.Petersburg, Russia
3 Institute of Problems in Mechanical Engineering Russian Acad. Sci., St.Petersburg, Russia
4 N.I. Lobachevsky Institute of Mathematics and Mechanics, Kazan Federal University, Kazan Russia
Published online: 28 October 2016
A new feature of the rotating black holes is the existence in their ergosphere of trajectories of particles with negative and zero energies. Here we analyze general prop-erties of such trajectories comparing them with usual trajectories of particles with posi-tive energy. A comparison with the situation in rotating coordinate frame in Minkowski space-time is made. The possibility of the unbounded growth of the energy of two col-liding particles in the centre of mass frame in the ergosphere is analysed.
© The Authors, published by EDP Sciences, 2016
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