Astrophysical black holes embedded in organized magnetic fields

0581795 - ASÚ 2024 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Karas, Vladimír
Astrophysical black holes embedded in organized magnetic fields.
Proceedings of RAGtime 23/25: Workshops on black holes and neutron stars. Opava: Silesian University, 2023, s. 13-19. Publications of the Institute of Physics, 10. ISBN 978-80-7510-577-6.
[RAGtime /23.-25./. Opava (CZ), 27.11.2023-01.12.2023]
Grant CEP: GA ČR(CZ) GX21-06825X
Institucionální podpora: RVO:67985815
Klíčová slova: black holes * electromagnetic fields * general relativity
Obor OECD: Astronomy (including astrophysics,space science)
https://proceedings.physics.cz/wp-content/uploads/2024/01/RAGtime25_online_final.pdf

Large-scale magnetic fields pervade the cosmic environment where the astrophysical black holes are often embedded and influenced by mutual interaction. In thiscontribution, we outline the appropriate mathematical framework to describe magnetized black holes within General Relativity, and we show several examples of how these can be employed in the astrophysical context. In particular, we examine the magnetized black hole metric in terms of an exact solution of electro-vacuum Einstein-Maxwell equations under the influence of a non-vanishing electric charge. New effects emerge: the expulsion of the magnetic flux out of the black-hole horizon depends on the intensity of the imposed magnetic field.
Trvalý link: https://hdl.handle.net/11104/0349940