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

Tatsuya Narikawa; Kazuhiro Yamamoto

doi:10.1103/PhysRevD.81.043528

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

Tatsuya Narikawa, Kazuhiro Yamamoto

Research output: Contribution to journal › Article › peer-review

30 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 language	English
Article number	043528
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	81
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevD.81.043528
Publication status	Published - Feb 16 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.81.043528

Cite this

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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.",

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

Abstract

All Science Journal Classification (ASJC) codes

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