Constraints on Dark Energy and Modified Gravity models by the Cosmological Redshift Drift test
General Relativity and Quantum Cosmology
2015-03-13 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
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).
Keywords
Cite
@article{arxiv.0910.4825,
title = {Constraints on Dark Energy and Modified Gravity models by the Cosmological Redshift Drift test},
author = {Deepak Jain and Sanjay Jhingan},
journal= {arXiv preprint arXiv:0910.4825},
year = {2015}
}
Comments
7 pages, 10 figures, revised version, accepted for publication in Physics Lett. B