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Testing General Relativity with Current Cosmological Data

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arxiv 1002.1962 v2 pith:3VWZJHWS submitted 2010-02-10 astro-ph.CO gr-qc

Scott F. Daniel , Eric V. Linder , Tristan L. Smith , Robert R. Caldwell , Asantha Cooray , Alexie Leauthaud , Lucas Lombriser This is my paper · ORCID
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keywords datageneralrelativitydeviationscosmiccurrentstructureacceleration
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Deviations from general relativity, such as could be responsible for the cosmic acceleration, would influence the growth of large scale structure and the deflection of light by that structure. We clarify the relations between several different model independent approaches to deviations from general relativity appearing in the literature, devising a translation table. We examine current constraints on such deviations, using weak gravitational lensing data of the CFHTLS and COSMOS surveys, cosmic microwave background radiation data of WMAP5, and supernova distance data of Union2. Markov Chain Monte Carlo likelihood analysis of the parameters over various redshift ranges yields consistency with general relativity at the 95% confidence level.

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Cited by 2 Pith papers

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    A unified AMR N-body code embeds EFTofDE α-basis models into one master Vainshtein equation and matches legacy ECOSMOG and HiCOLA matter power spectra.

  2. Parametrizations for tests of gravity

    astro-ph.CO 2019-08 accept novelty 1.0 of 10

    A review of parametrized frameworks (PPF, EFT, PPN, ppE) for testing gravity across cosmological and astrophysical scales, with an outlook toward unification.

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