Acoustic scale from the angular power spectra of SDSS-III DR8 photometric luminous galaxies

Details Acoustic scale from the angular power spectra of SDSS-III DR8 photometric luminous galaxies Acoustic scale from the angular power spectra of SDSS-III DR8 photometric luminous galaxies

2012-01-10

arxiv.org/abs/1201.2172v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

16 pages, 14 figures, 3 tables, submitted to ApJ

Scientific paper

We measure the acoustic scale from the angular power spectra of the Sloan Digital Sky Survey III (SDSS-III) Data Release 8 imaging catalog that includes 872,921 galaxies over ~ 10,000 deg^2 between 0.45~ 0.35. We report constraints on cosmological parameters from our measurement in combination with the WMAP7 data and the previous spectroscopic BAO measurements of SDSS (Percival et al. 2010) and WiggleZ (Blake et al. 2011). We refer to our companion papers (Ho et al. 2011; de Putter et al. 2011) for investigations on information of the full power spectrum.

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