Publications (42)
COMPTEL Observations of AGN at MeV-Energies
W. Collmar, K. Bennett, H. Bloemen +9
The COMPTEL experiment aboard CGRO, exploring the previously unknown sky at MeV-energies, has so far detected 10 Active Galactic Nuclei (AGN): 9 blazars and the radio galaxy Centau…
1.8 MeV Emission from the Carina Region
J. Knoedlseder, K. Bennett, H. Bloemen +5
Significant 1.8 MeV emission from the Carina region has been detected by COMPTEL. The emission is concentrated within 6 degrees or less near the Carina nebula NGC 3372, one of the…
The Comptel 1.809 Mev Survey
S. Plueschke, R. Diehl, V. Schoenfelder +8
We present the latest update of the 1.809 MeV sky survey obtained with COMPTEL. Based on all observations taken since the launch of CGRO in spring 1991 to early summer this year we…
The Spectral Variability of Cygnus X-1 at MeV Energies
M. L. McConnell, K. Bennett, H. Bloemen +8
In previous work, we have used data from the first three years of the CGRO mission to assemble a broad-band -ray spectrum of the galactic black hole candidate Cygnus X-1. Conte…
Evidence for Gamma-Ray Flares in 3C 279 and PKS 1622-297 at ~10 MeV
W. Collmar, V. Schoenfelder, H. Bloemen +6
The EGRET experiment aboard the Compton Gamma-Ray Observatory (CGRO) has observed at energies above 100 MeV strong gamma-ray flares with short-term time variability from the gamma-…
Modelling the 1.8 MeV Sky: Tests for Spiral Structure
J. Knoedlseder, N. Prantzos, K. Bennett +6
COMPTEL imaging analysis revealed a patchy, asymmetric distribution of diffuse 1.8 MeV emission along the Galactic plane, which is attributed to the decay of radioactive 26Al in th…