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 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
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Yamamoto, K., Sato, T., & Hütsi, G. (2008). Testing general relativity with the multipole spectra of the SPSS luminous red galaxies. Progress of Theoretical Physics, 120(3), 609-614. https://doi.org/10.1143/PTP.120.609