Computer Science
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410.1104d&link_type=abstract
The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 1104-1108 (1997).
Computer Science
Gamma-Ray Sources, Gamma-Ray Bursts, Gamma-Ray, Characteristics And Properties Of The Milky Way Galaxy, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages
Scientific paper
26Al emission at 1.809 MeV has been measured by several different instruments. The constraints set by each are very different, due to differing sky exposures and background estimation methods. We report on a first combined analysis of data from the COMPTEL, OSSE, and SMM instruments. The COMPTEL 1.8 MeV image as deconvolved with the Maximum-Entropy algorithm was tested for its flux normalization and its fine structure in the inner Galaxy, using data from SMM and OSSE. We find consistency of the OSSE data with COMPTEL's image structure, in particular the choice of the `stopping point' of the iterative deconvolution method. The SMM data suggest substantially more total flux than that given by the COMPTEL map. We discuss possible explanations, in particular large-scale emission outside the plane of the Galaxy, and outline future work on combined data from the three instruments.
Diehl Roland
Knodlseder Jurgen
Leising Mark D.
Oberlack Uwe
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