Modelling the redshift-space three-point correlation function in SDSS-III

Hong Guo; Zheng Zheng; Y. P. Jing; Idit Zehavi; Cheng Li; David H. Weinberg; Ramin A. Skibba; Robert C. Nichol; Graziano Rossi; Cristiano G. Sabiu; Donald P. Schneider; Cameron K. McBride

doi:10.1093/mnrasl/slv020

Modelling the redshift-space three-point correlation function in SDSS-III

Hong Guo, Zheng Zheng, Y. P. Jing, Idit Zehavi, Cheng Li, David H. Weinberg, Ramin A. Skibba, Robert C. Nichol, Graziano Rossi, Cristiano G. Sabiu, Donald P. Schneider, Cameron K. McBride

Institute of Cosmology & Gravitation

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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.

Original language	English
Pages (from-to)	L95-L99
Journal	Monthly Notices of the Royal Astronomical Society
Volume	449
Issue number	1
DOIs	https://doi.org/10.1093/mnrasl/slv020
Publication status	Published - 14 Mar 2015

Keywords

astro-ph.CO
astro-ph.GA
galaxies: distances and redshifts
galaxies: haloes
galaxies: statistics
cosmology: observations
cosmology: theory
large-scale structure of Universe
RCUK
STFC

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@article{033717697f354591a275114df1482a0f,

title = "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.",

keywords = "astro-ph.CO, astro-ph.GA, galaxies: distances and redshifts, galaxies: haloes, galaxies: statistics, cosmology: observations, cosmology: theory, large-scale structure of Universe, RCUK, STFC",

author = "Hong Guo and Zheng Zheng and Jing, {Y. P.} and Idit Zehavi and Cheng Li and Weinberg, {David H.} and Skibba, {Ramin A.} and Nichol, {Robert C.} and Graziano Rossi and Sabiu, {Cristiano G.} and Schneider, {Donald P.} and McBride, {Cameron K.}",

note = "MNRAS Letter accepted",

year = "2015",

month = mar,

day = "14",

doi = "10.1093/mnrasl/slv020",

language = "English",

volume = "449",

pages = "L95--L99",

journal = "Monthly Notices of the Royal Astronomical Society",

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publisher = "Oxford University Press",

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TY - JOUR

T1 - Modelling the redshift-space three-point correlation function in SDSS-III

AU - Guo, Hong

AU - Zheng, Zheng

AU - Jing, Y. P.

AU - Zehavi, Idit

AU - Li, Cheng

AU - Weinberg, David H.

AU - Skibba, Ramin A.

AU - Nichol, Robert C.

AU - Rossi, Graziano

AU - Sabiu, Cristiano G.

AU - Schneider, Donald P.

AU - McBride, Cameron K.

N1 - MNRAS Letter accepted

PY - 2015/3/14

Y1 - 2015/3/14

N2 - 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.

AB - 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.

KW - astro-ph.CO

KW - astro-ph.GA

KW - galaxies: distances and redshifts

KW - galaxies: haloes

KW - galaxies: statistics

KW - cosmology: observations

KW - cosmology: theory

KW - large-scale structure of Universe

KW - RCUK

KW - STFC

U2 - 10.1093/mnrasl/slv020

DO - 10.1093/mnrasl/slv020

M3 - Article

SN - 0035-8711

VL - 449

SP - L95-L99

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Modelling the redshift-space three-point correlation function in SDSS-III

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Keywords

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