Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....92...26c&link_type=abstract
Astronomy and Astrophysics, vol. 92, no. 1-2, Dec. 1980, p. 26-29.
Astronomy and Astrophysics
Astronomy
1
Background Radiation, Bl Lacertae Objects, Cosmic Rays, Gamma Ray Astronomy, Quasars, Seyfert Galaxies, Galactic Evolution, Gamma Ray Spectra, Luminous Intensity, Particle Diffusion
Scientific paper
The paper analyzes the contributions of QSOs, BL-Lac objects and Seyfert galaxies to the diffuse gamma-ray background within the framework of the Hoyle-Narlikar theory. It is shown that the inconsistency reported in standard theory, namely that the evolutionary function needed to explain the gamma-ray data is very different from the one derived from the optical part of the spectrum, is no longer present. It is also shown that the contribution of a variable gravitational 'constant' to the expression for the diffuse background is the same as that of a density evolution function.
Canuto Vittorio M.
Narlikar Jayant V.
Owen Rochelle J.
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