Supernova constraints on alternative models to dark energy
نویسندگان
چکیده
منابع مشابه
Supernova constraints on alternative models to dark energy
The recent observations of type Ia supernovae suggest that the universe is accelerating now and decelerated in the recent past. This may be the evidence of the breakdown of the standard Friedmann equation. The Friedmann equation H ∼ ρ is modified to be a general form H = g(ρ). Three models with particular form of g(ρ) are considered in detail. The supernova data published by Tonry et al. (2003)...
متن کاملConstraints on alternative models to dark energy
The recent observations of type Ia supernova strongly support that the universe is accelerating now and decelerated in the recent past. This may be the evidence of the breakdown of the standard Friedmann equation. We consider a general modified Friedmann equation. Three different models are analyzed in detail. The current supernova data and the Wilkinson microwave anisotropy probe data are used...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2004
ISSN: 1365-2966,0035-8711
DOI: 10.1111/j.1365-2966.2004.07976.x