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COMPTEL results on the 1.809 MeV gamma-ray line from the Galactic-center region |
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| Authors: | R Diehl K Bennett H Bloemen W Collmar W Hermsen G G Lichti M McConnell D Morris J Ryan V Schnfelder H Steinle A W Strong B N Swanenburg M Varendorff C Winkler |
| Institution: | * Max Planck Institut für Extraterrestrische Physik, D-8046 Garching, Germany ** SRON Leiden, P.O.B. 9504, NL-2300 RA, Leiden, The Netherlands *** University of New Hampshire, Institute for Studies of Earth, Oceans and Space, Durham, NH 03824, USA † Astrophysics Division, Space Science Department of ESA/ESTEC, NL-2200 AG, Noordwijk, The Netherlands |
| Abstract: | The COMPTEL experiment on the Compton Gamma-Ray Observatory is designed to image celestial gamma radiation in the energy range from 0.75–30 MeV within a field of view of 1 steradian. It can locate stronger point sources with an accuracy better than 0.5° and is capable of mapping diffuse emission as well. The Galactic-center region was observed by COMPTEL for several 2-week periods in 1991/1992. These observations show evidence for 1.8 MeV line emission along the Galactic disk (attributed to radioactive 26Al), extending over at least 40 degrees in longitude. |
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