X-ray variability power spectra of active galactic nuclei

Details X-ray variability power spectra of active galactic nuclei X-ray variability power spectra of active galactic nuclei

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...245..454a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 245, no. 2, May 1991, p. 454-456.

Astronomy and Astrophysics

Astronomy

98

Active Galactic Nuclei, Galactic Radiation, X Ray Spectra, Accretion Disks, Black Holes (Astronomy), Power Spectra

Scientific paper

Observed short timescales variability of the X-ray luminosity of Active Galactic Nuclei shows no characteristic frequency omega in the range of 0.00001 to 0.001 Hz. It is shown that for any kind of intrinsic variability in the innermost part of accretion disks orbiting around black holes the observed variability pattern is influenced in the short timescale range by the relativistic rotation of the disk and Doppler beaming.

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