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Constraints on f(R) gravity from probing the large-scale structure


Lombriser, Lucas; Slosar, Anže; Seljak, Uroš; Hu, Wayne (2012). Constraints on f(R) gravity from probing the large-scale structure. Physical Review D (Particles, Fields, Gravitation and Cosmology), 85(12):1-12.

Abstract

We study cosmological constraints on metric f(R) gravity models that are designed to reproduce the ΛCDM expansion history with modifications to gravity described by a supplementary cosmological freedom, the Compton wavelength parameter B0. We conduct a Markov chain Monte Carlo analysis on the parameter space, utilizing the geometrical constraints from supernovae distances, the baryon acoustic oscillation distances, and the Hubble constant, along with all of the cosmic microwave background data, including the largest scales, its correlation with galaxies, and a probe of the relation between weak gravitational lensing and galaxy flows. The strongest constraints, however, are obtained through the inclusion of data from cluster abundance. Using all of the data, we infer a bound of B0<1.1×10-3 at the 95% C.L.

Abstract

We study cosmological constraints on metric f(R) gravity models that are designed to reproduce the ΛCDM expansion history with modifications to gravity described by a supplementary cosmological freedom, the Compton wavelength parameter B0. We conduct a Markov chain Monte Carlo analysis on the parameter space, utilizing the geometrical constraints from supernovae distances, the baryon acoustic oscillation distances, and the Hubble constant, along with all of the cosmic microwave background data, including the largest scales, its correlation with galaxies, and a probe of the relation between weak gravitational lensing and galaxy flows. The strongest constraints, however, are obtained through the inclusion of data from cluster abundance. Using all of the data, we infer a bound of B0<1.1×10-3 at the 95% C.L.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Date:2012
Deposited On:05 Mar 2013 11:43
Last Modified:17 Feb 2018 00:37
Publisher:American Physical Society
ISSN:1550-2368
OA Status:Green
Publisher DOI:https://doi.org/10.1103/PhysRevD.85.124038

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