Conformal Cosmology and Supernova Data

Abstract

We define the cosmological parameters $H_{c,0}$, ${\Omega }_{m,c}$ and ${\Omega }_{\Lambda ,c}$ within the Conformal Cosmology as obtained by the homogeneous approximation to the conformal-invariant generalization of Einstein's General Relativity theory. We present the definitions of the age of the universe and of the luminosity distance in the context of this approach. A possible explanation of the recent data from distant supernovae Ia without a cosmological constant is presented.

9 pages revtex, 1 figure, Contribution to the Proceedings of the workshop "Quark Matter in Astro- and Particle Physics", Rostock, Nov 27 - 29, 2000, Eds: D. Blaschke, G. Burau, S.M. Schmidt