Wide Field Imaging of the Hubble Deep Field South Region II: The Evolution of Galaxy Clustering at z<1

Abstract

We present the galaxy-galaxy angular correlations as a function of photometric redshift in a deep-wide galaxy survey centered on the Hubble Deep Field South. Images were obtained with the Big Throughput Camera on the Blanco 4m telescope at CTIO, of 1/2 square degree in broad-band uBVRI, reaching ~24th mag. Approximately 40,000 galaxies are detected in the survey. We determine photometric redshifts using galaxy template fitting to the photometry. Monte Carlo simulations show that redshifts from these data should be reliable out to z~1, where the 4000 Angstrom break shifts into the I-band. The inferred redshift distribution, n(z), shows good agreement with the distribution of galaxies measured in the HDF North and the Canada-France Redshift Survey. After assigning galaxies to redshift bins with width Delta_z=0.33, we determine the two point angular correlation function in each bin. We find that the amplitude of the correlation, A_w, drops across the three bins to redshift z~1. Simple epsilon models of clustering evolution fit this result, with the best agreement for epsilon=0. Hierarchical cold-dark-matter models best fit in a low density, Lambda-dominated universe.

41 preprint pages, including 12 figures; accepted for publication in ApJ

References in corpus (7)

• WFPC2 Observations of the Hubble Deep Field-South
• A comparison of estimators for the two-point correlation function
• The Hubble Deep Field South - STIS Imaging
• Photometry and Photometric Redshifts of Faint Galaxies in the Hubble Deep Field South NICMOS Field
• Evolution in the Clustering of Galaxies for Z < 1
• Wide Field Imaging of the Hubble Deep Field-South Region I: Quasar Candidates
• Is Bootstrap Really Helpful in Point Process Statistics?

Cited by in corpus (21)

• The Multiwavelength Survey by Yale-Chile (MUSYC): Survey Design and Deep Public UBVRIz' Images and Catalogs of the Extended Hubble Deep Field South
• Estimating photometric redshifts with artificial neural networks
• Photometric redshifts in the SWIRE Survey
• Angular Clustering with Photometric Redshifts in the Sloan Digital Sky Survey: Bimodality in the Clustering Properties of Galaxies
• The Las Campanas IR Survey. II. Photometric redshifts, comparison with models and clustering evolution
• Radio Observations of the Hubble Deep Field South Region II: The 1.4 GHz Catalogue and Source Counts
• The 2dF Galaxy Redshift Survey: Clustering properties of radio galaxies
• The Las Campanas Infrared Survey. III. The H-band Imaging Survey and the Near-Infrared and Optical Photometric Catalogs
• The SDSS Galaxy Angular Two-Point Correlation Function
• Photometric redshifts in the Hubble Deep Fields: evolution of extinction and the star-formation rate
• The 2dF Galaxy Redshift Survey: The population of nearby radio galaxies at the 1 mJy level
• The Canada-France deep fields survey-I: 100,000 galaxies, 1 deg^2: a precise measurement of ω(θ) to IAB~25
• Red Galaxy Clustering in the NOAO Deep Wide-Field Survey
• Clustering properties of a type-selected volume-limited sample of galaxies in the CFHTLS
• Galaxy Clustering Evolution in the UH8K Weak Lensing Fields
• Radio Observations of the Hubble Deep Field South Region IV: Optical Properties of the Faint Radio Population
• Radio Observations of the Hubble Deep Field South region: I. Survey Description and Initial Results
• Radio Observations of the Hubble Deep Field South Region III: The 2.5, 5.2 and 8.7 GHz Catalogues and Radio Source Properties
• FORS spectroscopy of galaxies in the Hubble Deep Field South
• Radio Properties of FIRST Radio Sources at 1 mJy
• Surface brightness measurements for APM galaxies