35 citations · 104 across the 6 of their papers we have counts for
6 papers
Spinning particles in vacuum spacetimes of different curvature types: Natural reference tetrads, and massless particles
Oldřich Semerák
In a previous paper, we considered the motion of massive spinning test particles in the "pole-dipole" approximation, as described by the Mathisson--Papapetrou--Dixon (MPD) equation…
Approximating light rays in the Schwarzschild field
Oldrich Semerak
A short formula is suggested which approximates photon trajectories in the Schwarzschild field better than other simple prescriptions from the literature. We compare it with variou…
Effect of radiation flux on test particle motion in the Vaidya spacetime
Donato Bini, Andrea Geralico, Robert T. Jantzen +1
Motion of massive test particles in the nonvacuum spherically symmetric radiating Vaidya spacetime is investigated, allowing for physical interaction of the particles with the radi…
The general relativistic Poynting-Robertson effect. II: A photon flux with nonzero angular momentum
Donato Bini, Andrea Geralico, Robert T. Jantzen +2
We study the motion of a test particle in a stationary, axially and reflection symmetric spacetime of a central compact object, as affected by interaction with a test radiation fie…
Towards gravitating discs around stationary black holes
O. Semerak
This article outlines the search for an exact general relativistic description of the exterior (vacuum) gravitational field of a rotating spheroidal black hole surrounded by a real…
A method to determine the parameters of black holes in AGNs and galactic X-ray sources with periodic modulation of variability
O. Semerak, F. de Felice, V. Karas
We propose a simple and unambiguous way to deduce the parameters of black holes which may reside in AGNs and some types of X-ray binaries. The black-hole mass and angular momentum…