Abstract
As a test of general relativity on cosmological scales, we measure the γ parameter for the growth rate of density perturbations using the redshift-space distortion of the luminous red galaxies in the Sloan Digital Sky Survey (SDSS). Assuming the cosmological constant model, which matches the results of the WMAP experiment, we find γ = 0.62 + 1.8(σ8 - 0.8) ±0.11 at 1-sigma confidence level, which is consistent with the prediction of general relativity, γ 0.55 ∼ 0.56. Rather high value of σ8(≥ 0.87) is required to be consistent with the prediction of the cosmological DGP model, γ 0.68.
| Original language | English |
|---|---|
| Pages (from-to) | 609-614 |
| Number of pages | 6 |
| Journal | Progress of Theoretical Physics |
| Volume | 120 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Sep 1 2008 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
Testing general relativity with the multipole spectra of the SPSS luminous red galaxies. / Yamamoto, Kazuhiro; Sato, Takahiro; Hütsi, Gert.
In: Progress of Theoretical Physics, Vol. 120, No. 3, 01.09.2008, p. 609-614.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Testing general relativity with the multipole spectra of the SPSS luminous red galaxies
AU - Yamamoto, Kazuhiro
AU - Sato, Takahiro
AU - Hütsi, Gert
PY - 2008/9/1
Y1 - 2008/9/1
N2 - As a test of general relativity on cosmological scales, we measure the γ parameter for the growth rate of density perturbations using the redshift-space distortion of the luminous red galaxies in the Sloan Digital Sky Survey (SDSS). Assuming the cosmological constant model, which matches the results of the WMAP experiment, we find γ = 0.62 + 1.8(σ8 - 0.8) ±0.11 at 1-sigma confidence level, which is consistent with the prediction of general relativity, γ 0.55 ∼ 0.56. Rather high value of σ8(≥ 0.87) is required to be consistent with the prediction of the cosmological DGP model, γ 0.68.
AB - As a test of general relativity on cosmological scales, we measure the γ parameter for the growth rate of density perturbations using the redshift-space distortion of the luminous red galaxies in the Sloan Digital Sky Survey (SDSS). Assuming the cosmological constant model, which matches the results of the WMAP experiment, we find γ = 0.62 + 1.8(σ8 - 0.8) ±0.11 at 1-sigma confidence level, which is consistent with the prediction of general relativity, γ 0.55 ∼ 0.56. Rather high value of σ8(≥ 0.87) is required to be consistent with the prediction of the cosmological DGP model, γ 0.68.
UR - http://www.scopus.com/inward/record.url?scp=56449105781&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56449105781&partnerID=8YFLogxK
U2 - 10.1143/PTP.120.609
DO - 10.1143/PTP.120.609
M3 - Article
AN - SCOPUS:56449105781
VL - 120
SP - 609
EP - 614
JO - Progress of Theoretical Physics
JF - Progress of Theoretical Physics
SN - 0033-068X
IS - 3
ER -