Variability and spectral variation of 3C 66A

Details Variability and spectral variation of 3C 66A Variability and spectral variation of 3C 66A

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.333..213h&link_type=abstract

Astrophysics and Space Science, Volume 333, Issue 1, pp.213-224

Astronomy and Astrophysics

Astrophysics

Blazar, Variability, Photometry, Time Delay

Scientific paper

3C 66A was monitored by the BATC (Beijing-Arizona-Taipei-Connecticut) telescope from 2005 to 2008, 1994 observations were obtained on 89 nights. Detailed research and analysis was performed on these observations in this paper. A long term burst occurred in the whole light curve. No intra-day variability was claimed in our campaign by intra-night light curve analysis. Time lag of shorter wavelenth preceding longer wavelength was shown by correlation analysis. The results showed that the optical spectral shape turned flatter when the source brightened, and the spectral variability indicator was bigger on shorter time-scale as determined by the color indices variation analysis.

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