128 citations · 243 across the 4 of their papers we have counts for
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Shadow of the magnetically and tidally deformed black hole
R. A. Konoplya, Jan Schee, Dmitriy Ovchinnikov
We consider a simple model of a black hole surrounded by a toroidal structure and experiencing deformation due to magnetic field and the tidal force. For this system we construct t…
Profiled spectral lines of Keplerian rings orbiting in the regular Bardeen black hole spacetimes
Jan Schee, Zdenek Stuchlik
Considering the regular Bardeen black hole spacetimes, we test the observational effects of the general relativistic solutions coupled to non-linear electrodynamics (NED) by studyi…
Light escape cones in local reference frames of Kerr-de Sitter black hole spacetimes and related black hole shadows
Zdeněk Stuchlík, Daniel Charbulák, Jan Schee
We construct the light escape cones of isotropic spot sources of radiation residing in special classes of reference frames in the Kerr-de Sitter (KdS) black hole spacetimes, namely…
Electromagnetic perturbations of black holes in general relativity coupled to nonlinear electrodynamics
Bobir Toshmatov, Zdeněk Stuchlík, Jan Schee +1
The electromagnetic (EM) perturbations of the black hole solutions in general relativity coupled to nonlinear electrodynamics (NED) are studied for both electrically and magnetical…
Particle collisions and optical effects in the mining Kerr--Newman spacetimes
Zdeněk Stuchlík, Martin Blaschke, Jan Schee
We study ultra-high-energy particle collisions and optical effects in the extraordinary class of mining braneworld Kerr-Newman (KN) naked singularity spacetimes, predicting extreme…
Quasinormal frequencies of black hole in the braneworld
Bobir Toshmatov, Zdeněk Stuchlík, Jan Schee +1
We have studied scalar, electromagnetic and gravitational perturbations of the four-dimensional Reissner-Nordström-like black holes with a \textit{tidal charge} in the Randall-Sund…