Angular correlation function of 1.5 million LRGs: clustering evolution and a search for BAO

Abstract

We present the angular correlation function measured from photometric samples comprising 1,562,800 luminous red galaxies (LRGs). Three LRG samples were extracted from the Sloan Digital Sky Survey (SDSS) imaging data, based on colour-cut selections at redshifts, z ~ 0.35, 0.55 and 0.7 as calibrated by the spectroscopic surveys, SDSS-LRG, 2dF-SDSS LRG and QSO (2SLAQ), and the AAOmega LRG survey. The galaxy samples cover ~7600 s.q.deg of the sky, probing a total cosmic volume of ~5.5 h^-3} Gpc^3. The small and intermediate scale correlation functions generally show significant deviations from a single power-law fit with a well-detected break at ~1 h^-1 Mpc, consistent with the transition scale between the 1- and 2-halo terms in halo occupation models. For galaxy separations 1-20 h^-1 Mpc and at fixed luminosity, we see virtually no evolution of the clustering with redshift and the data is consistent with a simple high peaks biasing model where the comoving LRG space density is constant with z. At fixed z, the LRG clustering amplitude increases with luminosity in accordance with the simple high peaks model, with a typical LRG dark matter halo mass 10^13-10^14 h^-1 M_sol. For r < 1 h^-1 Mpc, the evolution is slightly faster and the clustering decreases towards high redshift consistent with a virialised clustering model. However, assuming the HOD and LCDM halo merger frameworks, ~2-3 per cent per Gyr of the LRGs is required to merge in order to explain the small scales clustering evolution, consistent with previous results [abridge].

Replaced to match the version accepted by MNRAS, Halo model analysis and additional systematic tests are included

References in corpus (28)

• The Cosmic Evolution Survey (COSMOS) -- Overview
• Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• Measuring the Baryon Acoustic Oscillation scale using the SDSS and 2dFGRS
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
• The 2dF-SDSS LRG and QSO Survey: QSO clustering and the L-z degeneracy
• The Baryonic Acoustic Feature and Large-Scale Clustering in the SDSS LRG Sample
• The 2dF-SDSS LRG and QSO Survey: The LRG 2-Point Correlation Function and Redshift-Space Distortions
• The 2dF-SDSS LRG and QSO (2SLAQ) Luminous Red Galaxy Survey
• The detectability of baryonic acoustic oscillations in future galaxy surveys
• A Halo Model of Galaxy Colors and Clustering in the SDSS
• Cosmological baryonic and matter densities from 600,000 SDSS Luminous Red Galaxies with photometric redshifts
• The 2dF-SDSS LRG and QSO survey: Evolution of the Luminosity Function of Luminous Red Galaxies to z=0.6
• Dark energy and curvature from a future baryonic acoustic oscillation survey using the Lyman-alpha forest
• The 2dF-SDSS LRG and QSO survey: evolution of the clustering of luminous red galaxies since z = 0.6
• How accurate is Limber's equation?
• Luminosity Function Constraints on the Evolution of Massive Red Galaxies Since z~0.9
• Excess Clustering on Large Scales in the MegaZ DR7 Photometric Redshift Survey
• Primordial Non-Gaussianity and the NRAO VLA Sky Survey
• Halo-model Analysis of the Clustering of Photometrically Selected Galaxies from SDSS
• Cross-correlating WMAP5 with 1.5 million LRGs: a new test for the ISW effect
• Optimising Baryon Acoustic Oscillation Surveys - I: Testing the concordance LCDM cosmology
• The Angular Power Spectra of Photometric SDSS LRGs
• Luminous Red Galaxy Clustering at z~0.7 - First Results using AAOmega
• Passive Evolution of Galaxy Clustering
• An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data
• Evidence for merging or disruption of red galaxies from the evolution of their clustering

Cited by in corpus (40)

• Observational Probes of Cosmic Acceleration
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
• The Clustering of Galaxies in SDSS-III DR9 Baryon Oscillation Spectroscopic Survey: Constraints on Primordial Non-Gaussianity
• Acoustic scale from the angular power spectra of SDSS-III DR8 photometric luminous galaxies
• Linear perturbations in Galileon gravity models
• The significance of the integrated Sachs-Wolfe effect revisited
• Spherical collapse in Galileon gravity: fifth force solutions, halo mass function and halo bias
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution
• The parameter space in Galileon gravity models
• The VLT LBG Redshift Survey - III. The clustering and dynamics of Lyman-break galaxies at z ~ 3
• Halo model and halo properties in Galileon gravity cosmologies
• The evolution of clustering length, large-scale bias and host halo mass at 2<z<5 in the VIMOS Ultra Deep Survey (VUDS)
• Very large scale correlations in the galaxy distribution
• Clustering of photometric luminous red galaxies I : Growth of Structure and Baryon Acoustic Feature
• Imaging Systematics and Clustering of DESI Main Targets
• Physical Properties of the star-forming clusters in NGC 6334
• Dark Energy Survey Year 1 Results: Measurement of the Galaxy Angular Power Spectrum
• Search for primordial non-Gaussianity in the quasars of SDSS-III BOSS DR9
• Responses of Halo Occupation Distributions: a new ingredient in the halo model & the impact on galaxy bias
• Testing the homogeneity of the Universe using gamma-ray bursts
• Clustering analysis of high-redshift Luminous Red Galaxies in Stripe 82
• Removing Imaging Systematics from Galaxy Clustering Measurements with Obiwan : Application to the SDSS-IV extended Baryon Oscillation Spectroscopic Survey Emission Line Galaxy Sample
• Precision growth index using the clustering of cosmic structures and growth data
• Large-scale analysis of the SDSS-III DR8 photometric luminous galaxies angular correlation function
• The WIRCam Deep Survey II: Mass Selected Clustering
• Evolution of the luminosity-to-halo mass relation of LRGs from a combined SDSS-DR10+RCS2 analysis
• Star-Galaxy Image Separation with Computationally Efficient Gaussian Process Classification
• Evolution in the clustering strength of radio galaxies
• Probing large scale homogeneity and periodicity in the LRG distribution using Shannon entropy
• Distance Probes of Dark Energy
• Clustering of Extremely Red Objects in Elais-N1 from the UKIDSS DXS with optical photometry from Pan-STARRS1 and Subaru
• Measuring BAO and non-Gaussianity via QSO clustering
• Large-scale clustering amongst Fermi blazars; evidence for axis alignments?
• AMICO galaxy clusters in KiDS-DR3: Cosmological constraints from angular power spectrum and correlation function
• Linking galaxies to dark matter haloes at $z\sim 1$ : dependence of galaxy clustering on stellar mass and specific star formation rate
• Cosmological forecasts from photometric measurements of the angular correlation function
• Cross-correlating Planck with VST ATLAS LRGs: a new test for the ISW effect in the Southern Hemisphere
• Probing large-scale structures with the two-point function and the power spectrum: insights into cosmic clustering evolution
• Comparison of the linear bias models in the light of the Dark Energy Survey
• Counting quasar--radio source pairs to derive the millijansky radio luminosity function and clustering strength to z=3.5