8 papers
The Cygnus Region: 26Al from OB Associations
S. Plueschke, K. Kretschmer, R. Diehl +2
The COMPTEL map of the 1.809 MeV gamma-ray line, which is attributed to the radioactive decay of 26Al, shows significant excess emission in the Cygnus region. Cygnus is a region of…
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…
Image Reconstruction of COMPTEL 1.8 MeV 26Al Line Data
J. Knodlseder, D. Dixon, K. Bennett +7
We present a new algorithm, called Multiresolution Regularized Expectation Maximization (MREM), for the reconstruction of gamma-ray intensity maps from COMPTEL data. The algorithm…
A New Look at Image Reconstruction of COMPTEL 1.8 MeV Data
J. Knodlseder, D. Dixon, R. Diehl +7
Deconvolving COMPTEL gamma-ray data into images presents a major methodological challenge. We developed a new algorithm called Multiresolution Regularized Expectation Maximization…
Assessment of Tracers of 1.8 MeV Emission
J. Knodlseder, R. Diehl, U. Oberlack +6
We examined the question of a possible correlation between 1.8 MeV emission and intensity distributions observed at other wavelengths by comparing the 1.8 MeV data to an extended s…
Search for 1.809 MeV Emission of 26Al from nearby Supernova Remnants using COMPTEL
Juergen Knoedlseder, Uwe Oberlack, Roland Diehl +2
We report the negative results of our searches in COMPTEL data for 1.809 MeV gamma-ray line emission from four localized regions which contain nearby supernova remnants (SNRs). The…