23 citations · 78 across the 19 of their papers we have counts for
19 papers
Radiation in the black hole - plasma system: propagation in equatorial plane
Vladimír Balek, Barbora Bezděková, Jiří Bičák
Effect of cold plasma on the form of rays propagating in the equatorial plane of a rotating black hole is investigated. Two kinds of regions in the radius-impact parameter plane al…
Effect of black hole--plasma system on light beams
Matej Sárený, Vladimír Balek
In the paper we discuss propagation of light around Kerr black hole surrounded by non-magnetized cold plasma with infinite conductivity. For that purpose, we use equations for prop…
Remarks on the Bojowald--Paily paper Deformed general relativity
Vladimír Balek, Orchidea Maria Lecian
A couple of technicalities in the paper M. Bojowald, G. Paily, Phys. Rev. D 87, 044044 (2013) are discussed. The explicit formula given there for the function entering the modified…
Constraints on modified dispersion relations
Vladimír Balek, Orchidea Maria Lecian
Deviation from standard dispersion relations for electrons and photons in the form of an extra term proportional to an arbitrarily high power of momentum is studied. It is shown th…
Effect of radiation-like solid on small-scale CMB anisotropies
Peter Mészáros, Vladimír Balek
We compute the CMB angular power spectrum in the presence of a radiation-like solid - elastic matter with the same pressure to energy density ratio as radiation but with nonzero sh…
Suppression of large-scale perturbations by stiff solid
Vladimír Balek, Matej Škovran
Evolution of large-scale scalar perturbations in the presence of stiff solid (solid with pressure to energy density ratio > 1/3) is studied. If the solid dominated the dynamics of…