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arXiv · 0804.3491

Power law cosmology - a viable alternative

Abha Dev·Deepak Jain·Daksh Lohiya
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Abstract

A power law cosmology is defined by the cosmological scale factor evolving as $t^α$. In this work, we put bounds on $α$ by using the joint test of the SNe Ia data from Supernova Legacy Survey (SNLS) and H(z) data with curvature constant $ k = 0, \pm 1$. We observe that the combined analysis with SNLS and H(z) data favours the open power cosmology with $α= 1.31^{+0.06}_{-0.05}. It is also interesting to note that an Einstein - de Sitter model $(α= 2/3)$ is ruled out at $2σ$ level.

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Abha Dev, Deepak Jain, Daksh Lohiya. 2008-04-22. Power law cosmology - a viable alternative. https://arxiv.org/abs/0804.3491

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