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Apparent Clustering of Intermediate-redshift Galaxies as a Probe of Dark Energy | | Takahiko Matsubara
; Alexander S. Szalay
; | | Date: |
5 Aug 2002 | | Journal: | Phys.Rev.Lett. 90 (2003) 021302 | | Subject: | astro-ph | | Affiliation: | Nagoya U.), Alexander S. Szalay (Johns Hopkins U. | | Abstract: | We show the apparent redshift-space clustering of galaxies in redshift range of 0.2--0.4 provides surprisingly useful constraints on dark energy component in the universe, because of the right balance between the density of objects and the survey depth. We apply Fisher matrix analysis to the the Luminous Red Galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS), as a concrete example. Possible degeneracies in the evolution of the equation of state (EOS) and the other cosmological parameters are clarified. | | Source: | arXiv, astro-ph/0208087 | | Other source: | [GID 138560] pmid12570533 | | Services: | Forum | Review | PDF | Favorites | |
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