[10.08] Evolution of the Two-point Correlation Function in Narrow Redshift Bins at z$<$2

AAS 206th Meeting, 29 May - 2 June 2005
Session 10 Galaxies, Clusters and Large Scale Structure
Poster, Monday, 9:20am-6:30pm, Tuesday, 10:00am-7:00pm, May 30, 2005, Ballroom A

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[10.08] Evolution of the Two-point Correlation Function in Narrow Redshift Bins at z<2

J. Blazek (Harvard University), P. Capak (Caltech), D. Sanders, I. Szapudi (IfA)

The two-point correlation function is an important measure of structure in the universe. Accurate determination of this function provides a test for different components of theoretical cosmological models. Here, we present a new method for calculating this function, utilizing the Euclidian Spatially Inhomogeneous Correlation Estimator (eSpICE - Szapudi et al. 2001), which greatly reduces necessary computing time. Using deep multi-color imaging in the COSMOS and other fields, we obtain photometric redshifts accurate to dz/(1+z) < 0.04 at z<2. These data cover more than 2.5 sq. degrees at I_ab < 26. With this unprecedented depth, area, and color coverage, we bin using narrow photometric redshift slices and are able to examine trends in the redshift evolution of the correlation function. We also examine the evolution of the correlation function by galaxy spectral type, mass, and magnitude. This research was funded in part by NASA grant HST-GO-09822.07-A.

The author(s) of this abstract have provided an email address for comments about the abstract: blazek@fas.harvard.edu

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