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Strong Gravitational Lensing by Schwarzschild Black Holes

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arxiv 0803.2468 v1 pith:OINDZZNN submitted 2008-03-17 astro-ph gr-qc

G. S. Bisnovatyi-Kogan , O. Yu. Tsupko This is my paper · ORCID
classification astro-phgr-qc
keywords blackrelativisticsourcealongangularapproachcalculatedclosest
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The properties of the relativistic rings which show up in images of a source when a black hole lies between the source and observer are examined. The impact parameters are calculated, along with the distances of closest approach of the rays which form a relativistic ring, their angular sizes, and their "magnification" factors, which are much less than unity.

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Cited by 1 Pith paper

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  1. Probing Lorentz Symmetry Violation through Lensing Observables of Rotating Black Holes

    gr-qc 2025-08 reject novelty 5.0 of 10

    A rotating Bumblebee black hole is shown to produce strong-lensing observables that deviate from Kerr, with EHT shadow data and an Einstein ring observation used to constrain the Lorentz-violating parameter ell.

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