Quasi-periodic features due to clumps orbiting around a black hole

Authors
Karas, V
Citation
V. Karas, Quasi-periodic features due to clumps orbiting around a black hole, PUB AST S J, 51(3), 1999, pp. 317-320
Citations number
17
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
ISSN journal
00046264 → ACNP
Volume
51
Issue
3
Year of publication
1999
Pages
317 - 320
Database
ISI
SICI code
0004-6264(1999)51:3<317:QFDTCO>2.0.ZU;2-U
Abstract
The expected Fourier power-spectrum density is examined with regard to the shape and quality factor Q of features which are predicted to appear in a s ignal from clumps orbiting near a marginally stable orbit of a compact body . It is shown that clumps distributed randomly in a narrow range of radii p roduce quasi-periodic oscillations with Q approximate to 10(2), similar to those observed in many low-mass X-ray binaries.