COMPTEL Observations of the Blazars 3C 454.3 and CTA 102

Details COMPTEL Observations of the Blazars 3C 454.3 and CTA 102 COMPTEL Observations of the Blazars 3C 454.3 and CTA 102

2001-07-10

arxiv.org/abs/astro-ph/0107173v1

Astronomy and Astrophysics

Astrophysics

5 pages including 8 figures, to appear in the proceedings of the GAMMA 2001 High Energy Astrophysics Symposium (Baltimore, Apr

Scientific paper

10.1063/1.1419427

We have analyzed the two blazars of 3C 454.3 and CTA 102 using all available COMPTEL data from 1991 to 1999. In the 10-30 MeV band, emission from the general direction of the sources is found at the 4$\sigma$-level, being consistent with contributions from both sources. Below 10 MeV only 3C 454.3 is significantly detected, with the strongest evidence (5.6 $\sigma$) in the 3-10 MeV band. Significant flux variability is not observed for both sources, while a low emission is seen most of the years in the 3-10 MeV light curve for 3C 454.3. Its time-averaged MeV spectrum suggests a power maximum between 3 to 10 MeV.

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