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

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

2009-12-08

arxiv.org/abs/0912.1445v4

Phys.Rev.D81:043528,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

13 pages, 7 figures, typos corrected

Scientific paper

10.1103/PhysRevD.81.043528

We investigate the linear growth rate of cosmological matter density
perturbations of 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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