Gravitational lensing by black holes
By V. Bozza. 2009
322 citations recorded by the source corpus.
We review the theoretical aspects of gravitational lensing by black holes, and discuss the perspectives for realistic observations. We will first treat lensing by spherically symmetric black holes, in which the formation of infinite sequences of higher order images emerges in the clearest way. We will then consider the effects of the spin of the black hole, with the formation of giant higher order caustics and multiple images. Finally, we will consider the perspectives for observations of black hole lensing, from the detection of secondary images of stellar sources and spots on the accretion disk to the interpretation of iron K-lines and direct imaging of the shadow of the black hole.
Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/d6ddd2c9e5dd3c86e91e90d25baa9f6df6b95f80
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In Astronomy and Astrophysics
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Gravitational lensing in the Kerr-Randers optical geometry (2012, background): “A comprehensive survey is given by a recent special issue of General Relativity and Gravitation dedicated to this topic, including a review of lensing by black holes [6] and mathematical aspects of the theory [14].”
- Gravitational Lensing in Presence of Plasma: Strong Lens Systems, Black Hole Lensing and Shadow (2017, background): “itational lensing beyond weak deflection approximation becomes very popular, because in the strong field regime it is possible to differ and compare different theories of gravity, see, for example, Refs. [57, 3, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78]. Nevertheless, there are no ”
- Twisting of light around rotating black holes (2011, unknown): “dtd" [ ]> Kerr black holes are among the most intriguing predictions of Einstein’s general relativity theor”
- Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole (2013, methodology): “Therefore, the investigation of the shadow is very useful for measuring the nature of the black hole. Optical properties and apparent shape of the rotating black holes have been investigated in Refs. [24, 25]. In Ref. [25], the authors studied the optical phenomena in a braneworld Kerr black hole, a”
- Shadow cast and deflection angle of Kerr-Newman-Kasuya spacetime (2018, methodology): “On the other hand, null geodesics method and gravitational lensing are also useful tools to gain information about the black holes [65, 66].”