1994•The Astrophysical JournalRequires access
Active galactic nuclei. 5: X-ray variability and the black hole cluster paradigm
A. G. Pacholczyk, W. R. Stoeger
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Abstract
A random superposition of elementary luminosity bursts of rectangular or triangular shape produces X-ray luminosity flicker curves characterized by features corresponding to those observed in the X-ray- variable Seyfert galaxies and other active galactic nuclei. Such luminosity events could be produced by accretion processes resulting from tidal disruption and consumption of stars by small (~1 M_sun_) black holes, or much more frequently from such holes passing and disrupting accretion disks belonging to large holes in a nuclear cluster.