Long-Term Optical Spectra Variability of Quasar 3C 273

Details Long-Term Optical Spectra Variability of Quasar 3C 273 Long-Term Optical Spectra Variability of Quasar 3C 273

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..408..388z&link_type=abstract

The Starburst-AGN Connection. ASP Conference Series, Vol. 408, proceedings of the conference held 27-31 October 2008, at Shangha

Astronomy and Astrophysics

Astronomy

Scientific paper

In this paper, we compiled all the magnitudes of 35 years in the optical B, V, R band of quasar 3C 273, studied on the long-term optical spectral index variability behavior. Using this database, we found two periods of 15.7 and 10.5 years by two methods. These results were consistent with Jurkevich's and Ozernoi's, and found that the magnitude variation period of 3C 273 was in agreement with the spectral variation period of about 15.7 years.

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