271 citations · 4.6k across the 192 of their papers we have counts for
Showing 2013 · astro-ph.HEShow all
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astro-ph.HE2013★ 14 cited
Hot-spot model for accretion disc variability as random process - II. Mathematics of the power-spectrum break frequency
Tomas Pechacek, Rene W. Goosmann, Vladimir Karas +2
We study some general properties of accretion disc variability in the context of stationary random processes. In particular, we are interested in mathematical constraints that can…
astro-ph.HE2013★ 16 cited
Multiple accretion events as a trigger for Sgr A* activity
Bozena Czerny, Devaky Kunneriath, Vladimir Karas +1
Gas clouds are present in the Galactic centre, where they orbit around the supermassive black hole. Collisions between these clumps reduce their angular momentum, and as a result s…