Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2001-02-09
Phys.Lett.B530:20-26,2002
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
13 pages, 1 figure, includes discussion of SN1997ff, text revised
Scientific paper
10.1016/S0370-2693(02)01341-2
We consider cosmological consequences of a conformal invariant formulation of Einstein's General Relativity where instead of the scale factor of the spatial metrics in the action functional a massless scalar (dilaton) field occurs which scales all masses including the Planck mass. Instead of the expansion of the universe we get the Hoyle-Narlikar type of mass evolution, where the temperature history of the universe is replaced by the mass history. We show that this conformal invariant cosmological model gives a satisfactory description of the new supernova Ia data for the effective magnitude - redshift relation without a cosmological constant and make a prediction for the high-redshift behavior which deviates from that of standard cosmology for $z>1.7$.
Behnke Danilo
Blaschke David
Pervushin Victor N.
Proskurin Denis
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