108 citations · 170 across the 5 of their papers we have counts for
5 papers
Shadows of naked singularities and superspinars related to the revisited Kerr-de Sitter spacetimes
Daniel Charbulák, Zdeněk Stuchlík
We construct shadows of superspinars described by the revisited Kerr-de Sitter (rKdS) naked singularity (NS) spacetimes and compare them with those of the standard KdSNS spacetimes…
Light escape cones in the locally non-rotating reference frames of the Kerr-de Sitter superspinars and related superspinar shadows
Daniel Charbulák, Zdeněk Stuchlík
The construction of local escape cones and their complementary cones, related to the locally non-rotating frames (LNRFs) orbiting superspinars with the external field described by…
Spherical photon orbits in the field of Kerr naked singularities
Daniel Charbulák, Zdeněk Stuchlík
For the Kerr naked singularity (KNS) spacetimes, we study properties of spherical photon orbits (SPOs) confined to constant Boyer-Lindquist radius r. Some new features of the SPOs…
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…
Photon motion in Kerr-de Sitter spacetimes
Daniel Charbulak, Zdenek Stuchlik
We study general non-equatorial motion of photons in the Kerr-de Sitter black hole and naked singularity spacetimes. The motion is governed by the impact parameter related to a…