320 citations · 6.9k across the 163 of their papers we have counts for
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A virtual trip to the Schwarzschild-de Sitter black hole
P. Bakala, P. Cermak, S. Hledik +2
We developed realistic fully general relativistic computer code for simulation of optical projection in a strong, spherically symmetric gravitational field. Standard theoretical an…
Fluctuations of CMBR in accelerating universe
Z. Stuchlík, J. Schee
The influence of the observed relict vacuum energy on the fluctuations of CMBR going through cosmological matter condensations is studied in the framework of the Einstein-Strauss-d…
Humpy LNRF-velocity profiles in accretion discs orbiting nearly extreme Kerr black holes. A possible relation to QPOs
Zdenek Stuchlik, Petr Slany, Gabriel Torok
Change of sign of the LNRF-velocity gradient has been found for accretion discs orbiting rapidly rotating Kerr black holes with spin a > 0.9953 for Keplerian discs and a > 0.99979…
Equilibrium conditions of spinning test particles in Kerr-de Sitter spacetimes
Zdenek Stuchlik, Jiri Kovar
Equilibrium conditions and spin dynamics of spinning test particles are discussed in the stationary and axially symmetric Kerr-de Sitter black-hole or naked-singularity spacetimes.…
Forces in Kerr spacetimes with a repulsive cosmological constant
Jiri Kovar, Zdenek Stuchlik
Forces defined in the framework of optical reference geometry are introduced in the case of stationary and axially symmetric Kerr black-hole and naked-singularity spacetimes with a…
QPOs in microquasars: the spin problem
Gabriel Torok, Marek A. Abramowicz, Zdenek Stuchlik +1
In the Galactic microquasars with double peak kHz quasi-periodic oscillations (QPOs), the ratio of the two frequencies is 3:2. This supports the suggestion that double peak kHz QPO…
Basic properties of toroidal structures in Kerr--de Sitter backgrounds
Zdenek Stuchlik, Petr Slany
Perfect fluid tori with uniform distribution of the specific angular momentum orbiting the Kerr-de Sitter black holes or naked singularities are studied. Closed equipotential surfa…
Toroidal LNRF-velocity profiles in thick accretion discs orbiting rapidly rotating Kerr black holes
Zdenek Stuchlik, Petr Slany, Gabriel Torok
We show that in the equatorial plane of marginally stable thick discs (with uniformly distributed specific angular momentum the orbital velocity relative to the locally non-rotatin…
A non-linear resonance model for the black hole and neutron star QPOs: theory supported by observations
Gabriel Torok, Marek A. Abramowicz, Wlodek Kluzniak +1
Kilohertz Quasi-Periodic Oscillations (QPOs) have been detected in many accreting X-ray binaries. It has been suggested that the highest QPO frequencies observed in the modulation…