COMPTEL observations of the blazars 3C 454.3 and CTA 102

Authors

S Zhang, Max-Planck-Institut für extraterrestriche Physik
W Collmar, Max-Planck-Institut für extraterrestriche Physik
V Schonfelder, Max-Planck-Institut für extraterrestrische PhysikFollow
H Bloemen, Space Research Organization of the Netherlands
W Hermsen, Space Research Organization of the Netherlands (SRON)
Mark L. McConnell, University of New Hampshire - Main CampusFollow
K Bennett, ESTEC
O R. Williams, ESTECFollow

Abstract

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 4σ-level, being consistent with contributions from both sources. Below 10 MeV only 3C 454.3 is significantly detected, with the strongest evidence (5.6 σ) 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.

Department

Space Science Center, Physics

Publication Date

2001

Journal Title

AIP Conference Proceedings

Publisher

AIP Publishing

Digital Object Identifier (DOI)

10.1063/1.1419427

Document Type

Conference Proceeding

Recommended Citation

COMPTEL observations of the blazars 3C 454.3 and CTA 102 Zhang, S. and Collmar, W. and Schönfelder, V. and Bloemen, H. and Hermsen, W. and McConnell, M. and Bennett, K. and Williams, O. R., AIP Conference Proceedings, 587, 343-347 (2001), DOI:http://dx.doi.org/10.1063/1.1419427

Rights

© 2001 American Institute of Physics