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Cosmic gamma rays from quasarsThe diffuse gamma radiation consists of the galactic and extragalactic components. The latter component is of special interest on account of its cosmological significance. Following the method recently proposed to estimate the gamma ray flux from galaxy clusters, and the detection of gamma rays from the quasars 3C273, the data base of the SAS II satellite was used to estimate the contribution from quasars to the extragalactic gamma ray flux. It is shown that quasars as a whole are significant gamma ray contributors, the average gamma ray flux per quasar in the energy range 35 MeV to 100 Mev being (1.3 + or - 0.9) x .00001 cm(-2)s(-1)sr(-1).
Document ID
19850025670
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lau, M. M.
(Hong Kong Univ.)
Young, E. C. M.
(Hong Kong Univ.)
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-2.7-10
Report Number: OG-2.7-10
Accession Number
85N33983
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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