Rapid variability of active galactic nuclei: The 160min periodicity in NGC 3516, NGC 4151 and Quasar 3C 273

Details Rapid variability of active galactic nuclei: The 160min periodicity in NGC 3516, NGC 4151 and Quasar 3C 273 Rapid variability of active galactic nuclei: The 160min periodicity in NGC 3516, NGC 4151 and Quasar 3C 273

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994an....315..333k&link_type=abstract

Astronomische Nachrichten (ISSN 0004-6337), vol. 315, no. 5, p. 333-342

Astronomy and Astrophysics

Astronomy

5

Active Galactic Nuclei, Black Holes (Astronomy), Periodic Variations, Quasars, Red Shift, Seyfert Galaxies, X Ray Sources, Accretion Disks, Cosmology, Gravitational Lenses, Light (Visible Radiation), X Ray Astronomy

Scientific paper

The analysis of tall the available data between 1968 and 1991 on rapid variability of optical and X-ray luminosity of three Active Galactic Nuclei (AGNs), NGC 3516, NGC 4151 and 3C 273, shows the presence of small-amplitude (approximately 1%) but statistically confident (approximately = 5(sigma) periodicity of 160.0105 (+/- 6) min. Within the error limits it coincides with the period Po = 160.0101 (+/-1) min of global oscillations of the Sun. An independence of the observed period on AGN red shift z favors the hypothesis about a cosmological origin of the 160min oscillation.

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