The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies

Zachary Slepian; Daniel J. Eisenstein; Florian Beutler; Antonio J. Cuesta; Jian Ge; Héctor Gil-Marín; Shirley Ho; Franciso-Shu Kitaura; Cameron K. McBride; Robert C. Nichol; Will J. Percival; Sergio Rodríguez-Torres; Ashley J. Ross; Román Scoccimarro; Hee-Jong Seo; Jeremy Tinker; Rita Tojeiro; Mariana Vargas-Magaña

The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies

Zachary Slepian, Daniel J. Eisenstein, Florian Beutler, Antonio J. Cuesta, Jian Ge, Héctor Gil-Marín, Shirley Ho, Franciso-Shu Kitaura, Cameron K. McBride, Robert C. Nichol, Will J. Percival, Sergio Rodríguez-Torres, Ashley J. Ross, Román Scoccimarro, Hee-Jong Seo, Jeremy Tinker, Rita Tojeiro, Mariana Vargas-Magaña

School of Physics and Astronomy

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Abstract

We report a measurement of the large-scale 3-point correlation function of galaxies using the largest dataset for this purpose to date, 777, 202 Luminous Red Galaxies in the Sloan Digital Sky Survey Baryon Acoustic Oscillation Spectroscopic Survey (SDSS BOSS) DR12 CMASS sample. This work exploits the novel algorithm of Slepian & Eisenstein (2015b) to compute the multipole moments of the 3PCF in O(N2) time, with N the number of galaxies. Leading-order perturbation theory models the data well in a compressed basis where one triangle side is integrated out. We also present an accurate and computationally efficient means of estimating the covariance matrix. With these techniques the redshift-space linear and non-linear bias are measured, with 2.6% precision on the former if σ8 is fixed. The data also indicates a 2.8σ preference for the BAO, confirming the presence of BAO in the 3-point function.

Original language	English
Journal	ArXiv e-prints
Publication status	Submitted - Dec 2015

Keywords

Astrophysics - Cosmology and Nongalactic Astrophysics

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http://www.sdss.org/dr12/
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Slepian, Z., Eisenstein, D. J., Beutler, F., Cuesta, A. J., Ge, J., Gil-Marín, H., Ho, S., Kitaura, F.-S., McBride, C. K., Nichol, R. C., Percival, W. J., Rodríguez-Torres, S., Ross, A. J., Scoccimarro, R., Seo, H.-J., Tinker, J., Tojeiro, R., & Vargas-Magaña, M. (2015). The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies. Manuscript submitted for publication.

@article{b1c96a2cc94c482b9cee0103eb026987,

title = "The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies",

abstract = "We report a measurement of the large-scale 3-point correlation function of galaxies using the largest dataset for this purpose to date, 777, 202 Luminous Red Galaxies in the Sloan Digital Sky Survey Baryon Acoustic Oscillation Spectroscopic Survey (SDSS BOSS) DR12 CMASS sample. This work exploits the novel algorithm of Slepian & Eisenstein (2015b) to compute the multipole moments of the 3PCF in O(N2) time, with N the number of galaxies. Leading-order perturbation theory models the data well in a compressed basis where one triangle side is integrated out. We also present an accurate and computationally efficient means of estimating the covariance matrix. With these techniques the redshift-space linear and non-linear bias are measured, with 2.6% precision on the former if σ8 is fixed. The data also indicates a 2.8σ preference for the BAO, confirming the presence of BAO in the 3-point function. ",

keywords = "Astrophysics - Cosmology and Nongalactic Astrophysics",

author = "Zachary Slepian and Eisenstein, {Daniel J.} and Florian Beutler and Cuesta, {Antonio J.} and Jian Ge and H{\'e}ctor Gil-Mar{\'i}n and Shirley Ho and Franciso-Shu Kitaura and McBride, {Cameron K.} and Nichol, {Robert C.} and Percival, {Will J.} and Sergio Rodr{\'i}guez-Torres and Ross, {Ashley J.} and Rom{\'a}n Scoccimarro and Hee-Jong Seo and Jeremy Tinker and Rita Tojeiro and Mariana Vargas-Maga{\~n}a",

year = "2015",

month = dec,

language = "English",

journal = "ArXiv e-prints",

}

TY - JOUR

T1 - The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies

AU - Slepian, Zachary

AU - Eisenstein, Daniel J.

AU - Beutler, Florian

AU - Cuesta, Antonio J.

AU - Ge, Jian

AU - Gil-Marín, Héctor

AU - Ho, Shirley

AU - Kitaura, Franciso-Shu

AU - McBride, Cameron K.

AU - Nichol, Robert C.

AU - Percival, Will J.

AU - Rodríguez-Torres, Sergio

AU - Ross, Ashley J.

AU - Scoccimarro, Román

AU - Seo, Hee-Jong

AU - Tinker, Jeremy

AU - Tojeiro, Rita

AU - Vargas-Magaña, Mariana

PY - 2015/12

Y1 - 2015/12

N2 - We report a measurement of the large-scale 3-point correlation function of galaxies using the largest dataset for this purpose to date, 777, 202 Luminous Red Galaxies in the Sloan Digital Sky Survey Baryon Acoustic Oscillation Spectroscopic Survey (SDSS BOSS) DR12 CMASS sample. This work exploits the novel algorithm of Slepian & Eisenstein (2015b) to compute the multipole moments of the 3PCF in O(N2) time, with N the number of galaxies. Leading-order perturbation theory models the data well in a compressed basis where one triangle side is integrated out. We also present an accurate and computationally efficient means of estimating the covariance matrix. With these techniques the redshift-space linear and non-linear bias are measured, with 2.6% precision on the former if σ8 is fixed. The data also indicates a 2.8σ preference for the BAO, confirming the presence of BAO in the 3-point function.

AB - We report a measurement of the large-scale 3-point correlation function of galaxies using the largest dataset for this purpose to date, 777, 202 Luminous Red Galaxies in the Sloan Digital Sky Survey Baryon Acoustic Oscillation Spectroscopic Survey (SDSS BOSS) DR12 CMASS sample. This work exploits the novel algorithm of Slepian & Eisenstein (2015b) to compute the multipole moments of the 3PCF in O(N2) time, with N the number of galaxies. Leading-order perturbation theory models the data well in a compressed basis where one triangle side is integrated out. We also present an accurate and computationally efficient means of estimating the covariance matrix. With these techniques the redshift-space linear and non-linear bias are measured, with 2.6% precision on the former if σ8 is fixed. The data also indicates a 2.8σ preference for the BAO, confirming the presence of BAO in the 3-point function.

KW - Astrophysics - Cosmology and Nongalactic Astrophysics

UR - http://adsabs.harvard.edu/abs/2015arXiv151202231S

M3 - Article

JO - ArXiv e-prints

JF - ArXiv e-prints

ER -

The large-scale 3-point correlation function of the SDSS BOSS DR12 CMASS galaxies

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Sloan Digital Sky Survey Data Release 12

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