2005/12/07 by Gert Huetsi · 1 citation
Physics and Astronomy · #astro-ph
paper · pdf · doi:10.1051/0004-6361:20053939
published as Astron.Astrophys.449:891-902,2006 · Extended version of the previous work astro-ph/0507678, now including new data from the SDSS DR4. 17 pages, 18 figures, accepted for publication in A&A
arxiv created 2005/12/07 · arxiv updated 2009/12/01
We calculate the redshift-space power spectrum of the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4) Luminous Red Galaxy (LRG) sample, finding evidence for a full series of acoustic features down to the scales of ∼ 0.2 hMpc-1. This corresponds up to the 7th peak in the CMB angular power spectrum. The acoustic scale derived, (105.4 ± 2.3) h-1Mpc, agrees very well with the ``concordance'' model prediction and also with the one determined via the analysis of the spatial two-point correlation function by Eisenstein et al. (2005). The models with baryonic features are favored by 3.3 σover their ``smoothed-out'' counterparts without any oscillatory behavior.