Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apjs...41..301c&link_type=abstract
Astrophysical Journal Supplement Series, vol. 41, Oct. 1979, p. 301-326.
Astronomy and Astrophysics
Astronomy
13
Astronomical Models, Cosmology, Gravitation Theory, Gravitational Constant, Radio Sources (Astronomy), Data Reduction, Electromagnetic Interactions, Galactic Evolution, Galactic Radiation, Radio Galaxies
Scientific paper
The traditional radio counts N(S) and radio source models are studied within the framework of the scale-covariant cosmology developed to investigate whether the relative strength of the gravitational and electromagnetic constants is a function of cosmological epoch. It is found that a gravitational constant G varying as the inverse of t, where t is the epoch in atomic units, is consistent with all the data analyzed. For a wide class of models the present cosmology allows a finer discrimination of the deceleration parameter than does standard theory. The results, when combined with those of previous papers, namely, those from radio and optical flux and angular-diameter data analysis, favor an open universe.
Canuto Vittorio M.
Owen Rochelle J.
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