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Optical Outburst of the Gamma-Ray Blazar S4 0954+658 in March-April 2011
V. M. Larionov, S. G. Jorstad, A. P. Marscher +5
We present optical photopolarimetric observations of the BL Lac object S4 0954+658 obtained with the 70-cm telescope in Crimea, 40-cm telescope in St.Petersburg, and 1.8-m Perkins…
Identification of gamma-ray emission from 3C345 and NRAO512
F. K. Schinzel, K. V. Sokolovsky, F. D'Ammando +36
For more than 15 years, since the days of the Energetic Gamma-Ray Experiment Telescope (EGRET) on board the Compton Gamma-Ray Observatory (CGRO; 1991-2000), it has remained an open…
The long-lasting activity of 3C 454.3. GASP-WEBT and satellite observations in 2008-2010
C. M. Raiteri, M. Villata, M. F. Aller +6
We present multiwavelength observations of 3C 454.3 from April 2008 to March 2010. The radio to optical data are mostly from the GASP-WEBT, UV and X-ray data from Swift, and gamma-…