664 citations · 2.5k across the 35 of their papers we have counts for
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gr-qc2021★ 664 cited
Calculating black hole shadows: Review of analytical studies
Volker Perlick, Oleg Yu. Tsupko
In this article, we provide a review of the current state of the research of the black hole shadow, focusing on analytical (as opposed to numerical and observational) studies. We s…
gr-qc2021★ 44 cited
Deflection of light rays by spherically symmetric black hole in dispersive medium
Oleg Yu. Tsupko
The influence of the medium on the gravitational deflection of light rays is widely discussed in literature for the simplest non-trivial case: cold non-magnetized plasma. In this a…