The optical variability periodicity analysis of 3C273

Details The optical variability periodicity analysis of 3C273 The optical variability periodicity analysis of 3C273

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001acasn..42....9f&link_type=abstract

Acta Astronomical Sinica, vol.42, no.1, p. 9-15.

Astronomy and Astrophysics

Astronomy

8

Active Galactic Nucleus (Agn), Quasar 3C273, Variability Periodicity

Scientific paper

The authors have compiled measurements of ~ 110 years in the B-band of the quasar 3C273 and used this database to search for periodicity signals in the optical light curve. Two different methods were applied: the Jurkevich technique and the discrete correlation function (DCF) method. They revealed the existence of periods of 2.0, (13.65+/-0.20) and (22.50+/-0.20) years in the source variability. The possible origin of such a behavior is also discussed.

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