Cosmological tests of the HoyleNarlikar conformal gravity
Abstract
For the first time the HoyleNarlikar theory with creation of matter and a variable gravitational constant G, is subjected to the following cosmological tests: (1) the magnitude versus z relation, (2) the N(m) versus m relation for quasars, (3) the metric angular diameters versus z relation, (4) the isophotal angles versus z relation, (5) the log Nlog S radio source count, and finally (6) the 3 K radiation. It is shown that the theory passes all these tests just as well as the standard cosmology, with the additional advantage that the geometry of the universe is uniquely determined, with a curvature parameter equal to zero. It is also interesting to note that the variability of G affects the log Nlog S curve in a way similar to the density evolution introduced in standard cosmologies. The agreement with the data is therefore achieved without recourse to an ad hoc density evolution.
 Publication:

The Astrophysical Journal
 Pub Date:
 February 1980
 DOI:
 10.1086/157714
 Bibcode:
 1980ApJ...236....6C
 Keywords:

 Cosmology;
 Evolution (Development);
 Gravitation Theory;
 Gravitational Constant;
 Angular Distribution;
 Isophotes;
 Mach Inertia Principle;
 Matter (Physics);
 Red Shift;
 Riemann Manifold;
 Astrophysics