Modelling The Redshift-Space Three-Point Correlation Function in SDSS-III

Abstract

We present the measurements of the redshift-space three-point correlation function (3PCF) for z~0.5 luminous red galaxies of the CMASS sample in the Sloan Digital Sky Survey-III Baryon Oscillation Spectroscopic Survey Data Release 11. The 3PCF measurements are interpreted within the halo occupation distribution framework using high-resolution N-body simulations, and the model successfully reproduces the 3PCF on scales larger than 1Mpc/h. As with the case for the redshift-space two-point correlation functions, we find that the redshift-space 3PCF measurements also favour the inclusion of galaxy velocity bias in the model. In particular, the central galaxy in a halo is on average in motion with respect to the core of the halo. We discuss the potential of the small-scale 3PCF to tighten the constraints on the relation between galaxies and dark matter haloes and on the phase-space distribution of galaxies.

MNRAS Letter accepted

References in corpus (10)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• A 2.5% measurement of the growth rate from small-scale redshift space clustering of SDSS-III CMASS galaxies
• A Halo Model of Galaxy Colors and Clustering in the SDSS
• Brightest Cluster Galaxies at the Present Epoch
• Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution
• The Three-Point Correlation Function of Luminous Red Galaxies in the Sloan Digital Sky Survey
• An analytic model for the bispectrum of galaxies in redshift space
• Three-Point Correlation Functions of SDSS Galaxies: Luminosity and Color Dependence in Redshift and Projected Space

Cited by in corpus (1)

• Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies