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

Lucas Lombriser, Anže Slosar, Uroš Seljak, and Wayne Hu
Phys. Rev. D 85, 124038 – Published 18 June 2012

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<1.1×103 at the 95% C.L.

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  • Received 15 March 2010

DOI:https://doi.org/10.1103/PhysRevD.85.124038

© 2012 American Physical Society

Authors & Affiliations

Lucas Lombriser1,2, Anže Slosar3, Uroš Seljak1,4,5, and Wayne Hu6

  • 1Institute for Theoretical Physics, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
  • 2Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth, P01 3FX, UK
  • 3Brookhaven National Laboratory, Physics Department, Upton, New York 11973, USA
  • 4Physics and Astronomy Department, University of California, and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 5Ewha University, Seoul 120-750, Korea
  • 6Kavli Institute for Cosmological Physics, Department of Astronomy and Astrophysics, Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA

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Vol. 85, Iss. 12 — 15 June 2012

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