Article ID Journal Published Year Pages File Type
10724195 Physics Letters B 2010 7 Pages PDF
Abstract
We study cosmological constraints on the various accelerating models of the universe using the time evolution of the cosmological redshift of distant sources. The important characteristic of this test is that it directly probes the expansion history of the universe. In this work we analyze the various models of the universe which can explain the late time acceleration, within the framework of General Theory of Relativity (GR) (XCDM, scalar field potentials) and beyond GR (f(R) gravity model).
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Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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