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Recent high energy gamma-ray results from SAS-2Recent developments in gamma-ray astronomy due to the results from SAS-2 have focused on two areas. First, the emission from the plane of the Galaxy is the dominant feature in the gamma-ray sky. The galactic latitude and longitude distributions are consistent with the concept that the high-energy radiation originates from cosmic rays interacting with interstellar matter, and the measurements support a galactic origin for cosmic rays. Second, searches of the SAS-2 data for emission from localized sources have shown three strong discrete gamma-ray sources: the Crab nebula and PSR 0531 + 21, the Vela supernova remnant and PSR 0833-45, and a source near galactic coordinates 193 deg longitude, +3 deg latitude, which does not appear to be associated with other known celestial objects. Evidence has also been found for pulsed gamma-ray emission from two other radio pulsars, PSR 1818-04 and PSR 1747-46. A localized source near longitudes 76-80 deg may be associated with the X-ray source Cyg X-3.
Document ID
19780034272
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
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)
Ogelman, H. B.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ozel, M. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Tumer, T.
(Middle East Technical University Ankara, Turkey)
Lamb, R. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Astrophysics
Meeting Information
Meeting: Symposium on Minor Constituents and Excited Species
Start Date: June 9, 1976
End Date: June 10, 1976
Accession Number
78A18181
Distribution Limits
Public
Copyright
Other

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