Characterizing the linear growth rate of cosmological density perturbations in an f(R) model

Tatsuya Narikawa, Kazuhiro Yamamoto

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28 Citations (Scopus)

Abstract

We investigate the linear growth rate of cosmological matter density perturbations in a viable f(R) model both numerically and analytically. We find that the growth rate in the scalar-tensor regime can be characterized by a simple analytic formula. We also investigate a prospect of constraining the Compton wavelength scale of the f(R) model with a future weak lensing survey.

Original languageEnglish
Article number043528
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume81
Issue number4
DOIs
Publication statusPublished - Feb 16 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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