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Galaxy Clustering in the CNOC2 Redshift Survey

1999/10/06 by R. G. Carlberg, H. K. C. Yee, Carlberg, R. G. +13
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/9910100

To appear in the PASP proceedings of the conference: "The Hy-Redshift Universe: Galaxy Formation and Evolution at High Redshift", held in Berkeley, June 21-24, 1999. Conference Proceedings Editors: Andrew J. Bunker & Wil J. M. van Breughel

arxiv created 1999/10/06 · arxiv updated 2009/12/01

Abstract

The correlation evolution of a high luminosity subsample of the CNOC2 redshift survey is examined. The sample is restricted to galaxies for which the k corrected and evolution corrected R luminosity is MR <=-20 mag, where M_* ~= -20.3 mag. This subsample contains about 2300 galaxies. In consort with 13000 galaxies in a similarly defined low redshift sample from the Las Campanas Redshift survey we find that the comoving correlation can be described as xi(r|z) = (r00/r)gamma (1+z)-(3+e) with r00=5.08 +/- 0.08/h Mpc, e=0.02 +/- 0.23 and gamma=1.81 +/- 0.03 over the z=0.03 to 0.65 redshift range in a cosmology with OmegaM=0.2, Lambda=0. The measured clustering amplitude, and its evolution, are dependent on the adopted cosmology. The evolution rates for OmegaM=1 and flat low density models are e=0.9 +/- 0.3 and e=-0.5 +/- 0.2, respectively, with r00 ~= 5/h Mpc in all cases.

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