COMPTEL results on the 1.809 MeV gamma-ray line from the Galactic-center region

Authors

R Diehl, Max-Planck-Institut für extraterrestriche Physik
K Bennett, ESTEC
H Bloemen, Space Research Organization of the Netherlands
W Collmar, Max-Planck-Institut für extraterrestriche Physik
W Hermsen, Space Research Organization of the Netherlands (SRON)
G G. Lichti, Max-Planck-Institut für extraterrestrische Physik
Mark L. McConnell, University of New Hampshire - Main CampusFollow
D Morris, University of New Hampshire - Main CampusFollow
James M. Ryan, University of New HampshireFollow
V. Schonfelder, Max-Planck-Institut für extraterrestriche PhysikFollow
H Steinle, Max-Planck-Institut für extraterrestriche Physik
A W. Strong, Max-Planck-Institut für extraterrestriche Physik
B Swanenburg, SRON
M Varendorff, Max-Planck-Institut für extraterrestrische Physik
C Winkler, ESTEC

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.

Department

Physics

Publication Date

12-1993

Journal Title

Advances in Space Research

Publisher

Elsevier

Digital Object Identifier (DOI)

10.1016/0273-1177(93)90186-F

Document Type

Article

Recommended Citation

R. Diehl, K. Bennett, H. Bloemen, W. Collmar, W. Hermsen, G.G. Lichti, M. McConnell, D. Morris, J. Ryan, V. Schönfelder, H. Steinle, A.W. Strong, B.N. Swanenburg, M. Varendorff and C. Winkler. COMPTEL results on the 1.809 MeV gamma-ray line from the Galactic-center region. 1993, Adv. Space Research, 13, No. 12, pp. 723-726.