35 citations · 42 across the 3 of their papers we have counts for
5 papers
Retro-lensing light curves near a black hole
V. Karas
We model the light-curves from radiation-driven clouds near an accreting black hole. Taking into account the multiple images due to strong gravitational lensing, we find that sharp…
Stellar dynamics in a galactic centre surrounded by a massive accretion disc. I. Newtonian description
D. Vokrouhlicky, V. Karas
The long-term evolution of stellar orbits bound to a massive centre is studied in order to understand the cores of star clusters in central regions of galaxies. Stellar trajectorie…
Fourier-phase analysis of the orbiting bright-spot model for AGN variability
V. Karas
Fourier power spectra and phases of a signal from a large number of radiating sources orbiting around a black hole are investigated. It is assumed that the individual sources (brig…
Light curve of a source orbiting around a black hole: A fitting-formula
V. Karas
A simple, analytical fitting-formula for a photometric light curve of a source of light orbiting around a black hole is presented. The formula is applicable for sources on a circul…
Emission Line Profiles from Self-Gravitating Thin Disks
V. Karas, A. Lanza, D. Vokrouhlicky
We have constructed general relativistic models of a stationary, axially symmnetric, Keplerian thin disk around a rotating black hole. We computed profiles of a spectral line, emit…