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The clustering of massive galaxies at z ~ 0.5 from the first semester of BOSS data

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  • Martin White
  • M. Blanton
  • A. Bolton
  • D. Schlgel
  • J. Tinker
  • A. Berlind
  • L. Da Costa
  • E. Kazin
  • Y.-T. Lin
  • M. Maia
  • C. K. McBride
  • N. Padmanabhan
  • J. Parejko
  • Will Percival
  • F. Prada
  • B. Ramos
  • E. Sheldon
  • F. De Simoni
  • R. Skibba
  • D. Wake
  • I. Zehavi
  • Z. Zheng
  • Donald P. Schneider
  • Michael A. Strauss
  • B. A. Weaver
  • David H. Weinberg
We calculate the real- and redshift-space clustering of massive galaxies at z ~ 0.5 using the first semester of data by the Baryon Oscillation Spectroscopic Survey (BOSS). We study the correlation functions of a sample of 44,000 massive galaxies in the redshift range 0.4 < z < 0.7. We present a halo-occupation distribution modeling of the clustering results and discuss the implications for the manner in which massive galaxies at z ~ 0.5 occupy dark matter halos. The majority of our galaxies are central galaxies living in halos of mass 1013 h –1 M , but 10% are satellites living in halos 10 times more massive. These results are broadly in agreement with earlier investigations of massive galaxies at z ~ 0.5. The inferred large-scale bias (b sime 2) and relatively high number density (n̄ = 3 x10-4,h3Mpc3) imply that BOSS galaxies are excellent tracers of large-scale structure, suggesting BOSS will enable a wide range of investigations on the distance scale, the growth of large-scale structure, massive galaxy evolution, and other topics.
Original languageEnglish
Pages (from-to)126-135
JournalThe Astrophysical Journal
Issue number2
Early online date28 Jan 2011
Publication statusPublished - 20 Feb 2011


  • 0004-637X_728_2_126

    Rights statement: Copyright 2011. The American Astronomical Society.

    Final published version, 544 KB, PDF document

    Licence: CC BY-SA

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