Статья

Measuring the Baryon Acoustic Oscillation scale using the Sloan Digital Sky Survey and 2dF Galaxy Redshift Survey

Will J. PercivalInstitute of Cosmology and Gravitation, University of Portsmouth, Portsmouth P01 2EGShaun ColeDepartment of Physics, University of Durham, Science Laboratories, South Road, Durham DH1 3LEDaniel J. EisensteinSteward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85121, USAR. C. NicholInstitute of Cosmology and Gravitation, University of Portsmouth, Portsmouth P01 2EGJ. A. PeacockSUPA, Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJAdrian PopeInstitute for Astronomy, University of Hawaii, 2680 Woodlawn Road, Honolulu, HI 96822, USAAlexander S. SzalayDepartment of Physics and Astronomy, The Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218, USA

2007en

ABI

Аннотация

We introduce a method to constrain general cosmological models using Baryon Acoustic Oscillation (BAO) distance measurements from galaxy samples covering different redshift ranges, and apply this method to analyse samples drawn from the Sloan Digital Sky Survey (SDSS) and 2dF Galaxy Redshift Survey (2dFGRS). BAOs are detected in the clustering of the combined 2dFGRS and SDSS main galaxy samples, and measure the distance-redshift relation at z = 0.2. BAOs in the clustering of the SDSS luminous red galaxies measure the distance-redshift relation at z = 0.35. The observed scales of the BAOs calculated from these samples and from the combined sample are jointly analysed using estimates of the correlated errors, to constrain the form of the distance measure

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Идентификаторы

DOI: 10.1111/j.1365-2966.2007.12268.x

Цитирования и источники

Цитирований: 9Использованных источников: 0

Показатели — AkademScholar