Optical observations of CTA 102 and 3C 454.3 from November 1994 to December 1997
Abstract
We present the results of the optical monitoring of the gamma-loud blazars CTA 102 and 3C 454.3 during the past four observational seasons. Data were taken in BVR with the 1.05 m telescope of the Torino Astronomical Observatory. The observational period includes two pointings by the Energetic Gamma Ray Experiment Telescope (EGRET) on board the Compton Gamma Ray Observatory (CGRO), whose field of view comprises both sources. The first pointing occurred at the end of the first observational season and the optical data are not strictly contemporaneous. A good optical coverage was instead obtained around the epoch of the second pointing, which will allow a fair comparison with the gamma-ray data. Moreover, CTA 102 was also observed by the BeppoSAX satellite in the last observational season, when we could collect many simultaneous data in view of an optical/X-ray flux comparison.
- Publication:
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BLAZAR Data
- Pub Date:
- 1998
- Bibcode:
- 1998BlazD...1....1V