Energetics of magnetized black holes: Effective ergospheres and superradiance |
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| Authors: | A. N. Aliev D. V. Gal'tsov |
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| Affiliation: | (1) Shemakha Astrophysical Observatory of the Azerbaijanian Academy of Sciences, Shemakha, Azerbaijanian SSR, U.S.S.R.;(2) Physics Department, Moscow State University, Moscow, U.S.S.R. |
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| Abstract: | The model of a black hole rotating in an external magnetic field is considered. The mechanisms of the energy extraction from the black hole in terms of the effective ergospheres for charged particles are described. It is shown that the external magnetic field essentially influences the boundaries of the effective ergospheres and the superradiance threshold. |
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