Linear Coasting in Cosmology and SNe Ia

Details Linear Coasting in Cosmology and SNe Ia Linear Coasting in Cosmology and SNe Ia

2000-08-14

arxiv.org/abs/astro-ph/0008193v3

Astronomy and Astrophysics

Astrophysics

12 latex 2e pages including 5 ps figures. More references and Figuresincluded

Scientific paper

10.1016/S0370-2693(01)00292-1

A strictly linear evolution of the cosmological expansion scale factor is a characteristic feature in several classes of alternative gravity theories as also in the standard (big-bang) model with specially chosen equations of state of matter. Such an evolution has no free parameters as far as the classical cosmological tests are concerned and should therefore be easily falsifiable. In this article we demonstrate how such models present very good fits to the current supernovae 1a data. We discuss the overall viability of such models.

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