Characterising linear growth rate in f(r) gravity

Tatsuya Narikawa; Kazuhiro Yamamoto

Characterising linear growth rate in f(r) gravity

Research output: Contribution to conference › Paper › peer-review

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 characterised 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
Pages	255-258
Number of pages	4
Publication status	Published - Dec 1 2009
Externally published	Yes
Event	19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009 - Tokyo, Japan Duration: Nov 30 2009 → Dec 4 2009

Other

Other	19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009
Country	Japan
City	Tokyo
Period	11/30/09 → 12/4/09

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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title = "Characterising linear growth rate in f(r) gravity",

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 characterised 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.",

author = "Tatsuya Narikawa and Kazuhiro Yamamoto",

year = "2009",

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language = "English",

pages = "255--258",

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AU - Narikawa, Tatsuya

AU - Yamamoto, Kazuhiro

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N2 - 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 characterised 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.

AB - 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 characterised 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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T2 - 19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009

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