402 citations · 1.8k across the 74 of their papers we have counts for
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Properties of magneto-dipole X-ray lines in different radiation models
G. S. Bisnovatyi-Kogan, Ya. S. Lyakhova
We compare polarization properties of the cyclotron, and relativistic dipole radiation of electrons moving in the magnetic field on a helix with ultra-relativistic longitudinal and…
Regular and chaotic dynamics of non-spherical bodies. Zeldovich's pancakes and emission of very long gravitational waves
G. S. Bisnovatyi-Kogan, O. Yu. Tsupko
In this paper we review a recently developed approximate method for investigation of dynamics of compressible ellipsoidal figures. Collapse and subsequent behaviour are described b…
Influence of a plasma on the shadow of a spherically symmetric black hole
Volker Perlick, Oleg Yu. Tsupko, Gennady S. Bisnovatyi-Kogan
We analytically calculate the influence of a plasma on the shadow of a black hole (or of another compact object). We restrict to spherically symmetric and static situations, where…
Innermost stable circular orbits of spinning test particles in Schwarzschild and Kerr space-times
Paul I. Jefremov, Oleg Yu. Tsupko, Gennady S. Bisnovatyi-Kogan
We consider the motion of classical spinning test particles in Schwarzschild and Kerr metrics and investigate innermost stable circular orbits (ISCO). The main goal of this work is…