Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cha%26a..34..343w&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 34, Issue 4, p. 343-349.
Astronomy and Astrophysics
Astrophysics
Scientific paper
By means of the structural function analysis, we have studied the variability of the classical blazars 3C273 and 3C345 at 22 GHz & 37 GHz and in an optical waveband. Our results show that the periodicity of 3C273 is rather evident: at 22 GHz, the periods of 7.0 and 14.7 years exist; at 37 GHz, the periods of 7.2 and 14.5 years exist; and in the optical waveband, the periods of 0.7 and 8.7 years probably exist. 3C345 has a rather evident period of 8.8 years at 37 GHz, and the not very evident periods of 9.3 and 10.2 years at 22 GHz and in the optical waveband, respectively.
Wang Hong-Tao
Yang Jun-Ying
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