Issues

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1989

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January

  

Reviews of topical problems


’Magnetized’ black holes

Physical aspects of the theory of black holes in an external electromagnetic field are reviewed. The ``magnetized'' black hole model is currently widely discussed in astrophysics because it provides a basis for the explanation of the high energy activity of galactic cores and quasars. The particular feature of this model is that it predicts unusual ``gravimagnetic'' phenomena that arise as a result of a natural combination of effects in electrodynamics and gravitation, namely, the appearance of an inductive potential difference during the rotation of a black hole in a magnetic field, the drift of a black hole in an external electromagnetic field, the change in the chemical potential of the event horizon, the creation of an effective ergosphere of a black hole in a magnetic field, and so on. Questions relating to the description of electromagnetic fields in Kerr space-time are examined, including their influence on the space-time metric, the interaction between a rotating charged black hole and an external electromagnetic field, the motion of charged particles near ``magnetized'' black holes, including their spontaneous and stimulated emission, and the influence of magnetic fields on quantum-mechanical processes in black holes.

Fulltext pdf (833 KB)
Fulltext is also available at DOI: 10.1070/PU1989v032n01ABEH002677
PACS: 97.60.Lf, 98.54.Aj, 95.30.Sf, 97.10.Ld, 04.70.Dy (all)
DOI: 10.1070/PU1989v032n01ABEH002677
URL: https://ufn.ru/en/articles/1989/1/d/
Citation: Aliev A N, Gal’tsov D V "'Magnetized' black holes" Sov. Phys. Usp. 32 75–92 (1989)
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Оригинал: Алиев А Н, Гальцов Д В «„Замагниченные“ черные дыры» УФН 157 129–162 (1989); DOI: 10.3367/UFNr.0157.198901d.0129

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