### 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 |
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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 |
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Country | Japan |

City | Tokyo |

Period | 11/30/09 → 12/4/09 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Atomic and Molecular Physics, and Optics

### Cite this

*Characterising linear growth rate in f(r) gravity*. 255-258. Paper presented at 19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009, Tokyo, Japan.

**Characterising linear growth rate in f(r) gravity.** / Narikawa, Tatsuya; Yamamoto, Kazuhiro.

Research output: Contribution to conference › Paper

}

TY - CONF

T1 - Characterising linear growth rate in f(r) gravity

AU - Narikawa, Tatsuya

AU - Yamamoto, Kazuhiro

PY - 2009/12/1

Y1 - 2009/12/1

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.

UR - http://www.scopus.com/inward/record.url?scp=84887422527&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84887422527&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84887422527

SP - 255

EP - 258

ER -