RAPID VARIABILITY OF ACTIVE GALACTIC NUCLEI - THE 160MIN PERIODICITY IN NGC-3516, NGC-4151 AND QUASAR 3C-273

Authors
KOTOV VA HANEYCHUK VI LYUTY VM
Citation
Va. Kotov et al., RAPID VARIABILITY OF ACTIVE GALACTIC NUCLEI - THE 160MIN PERIODICITY IN NGC-3516, NGC-4151 AND QUASAR 3C-273, Astronomische Nachrichten, 315(5), 1994, pp. 333-342
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomische Nachrichten → ACNP
ISSN journal
00046337
Volume
315
Issue
5
Year of publication
1994
Pages
333 - 342
Database
ISI
SICI code
0004-6337(1994)315:5<333:RVOAGN>2.0.ZU;2-O
Abstract
The analysis of all the available data between 1968 and 1991 on rapid variability of optical and X-ray luminosity of three AGNs, NGC 3516, N GC 4151 and 3C 273, shows the presence of small-amplitude (approximate ly 1 %) but statistically confident (almost-equal-to 5 sigma) periodic ity of 160.0105 (+/- 6) min. Within the error limits it coincides with the period P(o) = 160.0101 (+/- 1) min of global oscillations of the Sun. An independence of the observed period on AGN red shift z favours the hypothesis about a cosmological origin of the 160min oscillation.