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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: the low-redshift sample

Parejko, John K.; Sunayama, Tomomi; Padmanabhan, Nikhil; Wake, David A.; Berlind, Andreas A.; Bizyaev, Dmitry; Blanton, Michael; Bolton, Adam S.; van den Bosch, Frank; Brinkmann, Jon; Brownstein, Joel R.; da Costa, Luiz Alberto Nicolaci; Eisenstein, Daniel J.; Guo, Hong; Kazin, Eyal; Maia, Marcio; Malanushenko, Elena; Maraston, Claudia; McBride, Cameron K.; Nichol, Robert C.; Oravetz, Daniel J.; Pan, Kaike; Percival, Will J.; Prada, Francisco; Ross, Ashley J.; Ross, Nicholas P.; Schlegel, David J.; Schneider, Don; Simmons, Audrey E.; Skibba, Ramin; Tinker, Jeremy; Tojeiro, Rita; Weaver, Benjamin A.; Wetzel, Andrew; White, Martin; Weinberg, David H.; Thomas, Daniel; Zehavi, Idit and Zheng, Zheng (2013). The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: the low-redshift sample. Monthly Notices of the Royal Astronomical Society, 429(1) pp. 98–112.

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We report on the small-scale (0.5 < r < 40 h−1 Mpc) clustering of 78 895 massive (M* ~ 1011.3 M) galaxies at 0.2 < z < 0.4 from the first two years of data from the Baryon Oscillation Spectroscopic Survey (BOSS), to be released as part of Sloan Digital Sky Survey (SDSS) Data Release 9 (DR9). We describe the sample selection, basic properties of the galaxies and caveats for working with the data. We calculate the real- and redshift-space two-point correlation functions of these galaxies, fit these measurements using halo occupation distribution (HOD) modelling within dark matter cosmological simulations, and estimate the errors using mock catalogues. These galaxies lie in massive haloes, with a mean halo mass of 5.2 × 1013h−1 M, a large-scale bias of ~2.0 and a satellite fraction of 12 ± 2 per cent. Thus, these galaxies occupy haloes with average masses in between those of the higher redshift BOSS CMASS sample and the original SDSS I/II luminous red galaxy sample.

Item Type: Journal Item
Copyright Holders: 2012 The Authors
ISSN: 1365-2966
Keywords: large-scale structure of universe; haloes; evolution
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 38258
Depositing User: Astrid Peterkin
Date Deposited: 12 Sep 2013 09:53
Last Modified: 07 Dec 2018 18:40
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