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Magnetized black hole as a gravitational lens

R. A. Konoplya
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Abstract

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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R. A. Konoplya. 2006-11-19. Magnetized black hole as a gravitational lens. https://doi.org/10.1016/j.physletb.2006.11.018

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