The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function
Abstract
Presented are measurements of the observed redshift-space galaxy-galaxy autocorrelation function, xi(s), for the Las Campanas Redshift Survey (LCRS). For separations 2.0/h Mpc < s < 16.4/h Mpc, xi(s) can be approximated by a power law with slope of -1.52 +/- 0.03 and a correlation length of s_0 = (6.28 +\- 0.27)/h Mpc. A zero-crossing occurs on scales of roughly 30 - 40/h Mpc. On larger scales, xi(s) fluctuates closely about zero, indicating a high level of uniformity in the galaxy distribution on these scales. In addition, two aspects of the LCRS selection criteria - a variable field-to-field galaxy sampling rate and a 55 arcsec galaxy pair separation limit - are tested and found to have little impact on the measurement of xi(s). Finally, the LCRS xi(s) is compared with those from numerical simulations; it is concluded that, although the LCRS xi(s) does not discriminate sharply among modern cosmological models, redshift-space distortions in the LCRS xi(s) will likely provide a strong test of theory.
Cite
@article{arxiv.astro-ph/9611206,
title = {The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function},
author = {D. L. Tucker and A. Oemler, and R. P. Kirshner and H. Lin and S. A. Shectman and S. D. Landy and P. L. Schechter and V. Mueller and S. Gottloeber and J. Einasto},
journal= {arXiv preprint arXiv:astro-ph/9611206},
year = {2016}
}
Comments
5 pages, LaTeX, 8 postscript figures, and plotting.sty included. Text and figures are also available at http://manaslu.astro.utoronto.ca:80/~lin/JournalPapers/JournalPapers.html and at http://www.aip.de:8080/~tucker/JournalPapers/JournalPapers.html Accepted for publication by MNRAS