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Search for gamma-rays from M31 and other extragalactic objectsAlthough the existence of fluxes of gamma-rays of energies 10 to the 12th power eV is now established for galactic sources, the detection of such gamma-rays from extragalactic sources has yet to be independently confirmed in any case. The detection and confirmation of such energetic photons is of great astrophysical importance in the study of production mechanisms for cosmic rays, and other high energy processes in extragalactic objects. Observations of m31 are discussed. It is reported as a 10 to the 12th power eV gamma-ray source. Flux limits on a number of other extragalactic objects chosen for study are given.
Document ID
19850025664
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cawley, M. F.
(University Coll. Dublin, Ireland)
Fegan, D. J.
(University Coll. Dublin, Ireland)
Gibbs, K.
(Harvard-Smithsonian Center for Astrophysics Amado, Ariz., United States)
Gorham, P. W.
(Hawaii Univ. Honolulu, United States)
Lamb, R. C.
(Iowa State Univ. Ames, United States)
Liebing, D. F.
(Iowa State Univ. Ames, United States)
Porter, N. A.
(University Coll. Dublin, Ireland)
Stenger, V. J.
(Hawaii Univ. Honolulu, United States)
Weeles, T. C.
(Harvard-Smithsonian Center for Astrophysics Amado, Ariz., United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: 19th Intern. Cosmic Ray Conf - Vol. 1
Subject Category
Space Radiation
Report/Patent Number
OG-2.7-3
Report Number: OG-2.7-3
Accession Number
85N33977
Funding Number(s)
CONTRACT_GRANT: DE-AC03-83ER-40103
CONTRACT_GRANT: DE-AC02-80ER-10774
CONTRACT_GRANT: DE-AC02-82ER-40063
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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