National Repository of Grey Literature 5 records found  Search took 0.01 seconds. 
Orbity hvězd v gravitačním poli hmotného toru v blízkosti centra galaxie
Šubr, L. ; Karas, Vladimír
We further examine orbits of satellite stars in the gravitational field of a dark supermassive compact body, which is surrounded by a self-gravitating accretion disc or a massive molecular torus.
Sestupující orbity v okolí rotující černé díry
Pecháček, T. ; Karas, Vladimír
We consider orbits of a test body near a rotating black hole. The orbits are perturbed by two effects which drive them away from purely geodesic motion.
Obecné souvislosti nelineární resonance 3:2 v kontextu QPO
Horák, Jiří
In the resonant model, quasi periodic oscillations (QPOs) are supposed to be consequence of a nonlinear resonance between modes of oscillations within innermost parts of an accretion disk.
Model pro XSPEC ke zkoumání spekter z černoděrových zdrojů
Dovčiak, Michal ; Karas, Vladimír ; Martocchia, A. ; Matt, G. ; Yaqoob, T.
We report on a new general relativistic computational model enhancing, in various respects, the capability of presently available tools for fitting spectra of X-ray sources.
Proměnnost akreujících zdrojů při vysokém časovém rozlišení
Bursa, Michal
We are carrying out a project to study rapid variability of radiation originating from accreting compact objects. Our goal is to examine fluctuations of the radiation flux occuring on the light-crossing time scales, taking into account effects of strong gravitational field.

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