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Observations of discrete gamma ray sources with SAS-2Compact gamma ray sources centered on the Crab nebula and the Vela X supernova remnant are considered. An excess in the galactic radiation was observed in both regions. Data indicate that a large fraction of this flux is pulsed. The excess from the Vela region could reflect either a large-scale galactic feature, such as a superposition of spiral arm segments, or it could be associated with the Vela supernova remnant. Low-energy gamma ray bursts were observed in the SAS-2 anticoincidence shielding.
Document ID
19750017777
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Thompson, D. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fichtel, C. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hartman, R. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kniffen, D. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bignami, G. F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 8, 2013
Publication Date
November 1, 1974
Publication Information
Publication: ESRO The Context and Status of Gamma Ray Astronomy
Subject Category
Space Radiation
Accession Number
75N25849
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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