Power-law cosmology, SN Ia, and BAO
2014
We revise observational constraints on the class of models of modified gravity which at low redshifts lead to a power-law cosmology. To this end we use available public data on Supernova Ia and on baryon acoustic oscillations. We show that the expansion regime a(t) ~ tβ with β close to 3/2 in a spatially flat universe is a good fit to these data.
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