Mathematics – Logic
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....1..285l&link_type=abstract
In its NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 1 p 285-288 (SEE N85-33902 22-93)
Mathematics
Logic
Cosmic Rays, Diffuse Radiation, Galactic Clusters, Gamma Rays, Quasars, Radiant Flux Density, Cos-B Satellite, Cosmology, Interstellar Matter, Red Shift, Sas-2
Scientific paper
The 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).
Lau Michael
Young Enoch C. M.
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