Magnetized black hole as a gravitational lens

R. A. Konoplya

Magnetized black hole as a gravitational lens

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arxiv gr-qc/0608066 v3 pith:UBITU2NM submitted 2006-08-12 gr-qc astro-phhep-th

R. A. Konoplya This is my paper · ORCID

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keywords magneticblackfieldanglebendingdelaydue-togalaxies

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We use the Ernst-Schwarzschild solution for a black hole immersed in a uniform magnetic field to estimate corrections to the bending angle and time delay due-to presence of weak magnetic fields in galaxies and between galaxies, and also due-to influence of strong magnetic field near supermassive black holes. The magnetic field creates a kind of confinement in space, that leads to increasing of the bending angle and time delay for a ray of light propagating in the equatorial plane.

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Horizon-Evanescent Scalar Clouds from Coupled Rotation and Magnetic Fields around Black Holes
gr-qc 2026-06 unverdicted novelty 7.0 of 10

Magnetic fields around Kerr-Bertotti-Robinson black holes quench superradiant instability, enabling both classical synchronized scalar clouds and a new class of horizon-decaying stationary clouds.

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