The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements and the strong power of f(z)σ8(z) on constraining dark energy

By C. Chuang, Francisco Prada, A. Cuesta, Daniel J. Eisenstein, E. Kazin, Nikhil Padmanabhan, Ariel G. Sánchez, Xiaoying Xu, F. Beutler, Marc Manera and 6 more. 2013

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We present measurements of the anisotropic galaxy clustering from the Data Release 9 (DR9) CMASS sample of the Sloan Digital Sky Survey (SDSS)-III Baryon Oscillation Spectroscopic Survey (BOSS). We analyse the broad-range shape of the monopole and quadrupole correlation functions to obtain constraints, at the effective redshift z = 0.57 of the sample, on the Hubble expansion rate H(z), the angular-diameter distance DA(z), the normalized growth rate f (z)σ8(z), the physical matter density Ωmh2, and the biased amplitude of matter fluctuation bσ8(z). We obtain {H(0.57), DA(0.57), f (0.57)σ8(0.57), Ωmh2, bσ8(0.57)} = {87.6+6.7−6.8 kms−1 Mpc−1, 1396 ± 73 Mpc, 0.428 ± 0.066, 0.126+0.008 -0.010 ,1.19 ± 0.14} and their covariance matrix as well. The parameters which are not well constrained by our galaxy clustering analysis are marginalized over with wide flat priors. Since no priors from other data sets [i.e. cosmic microwave background (CMB)] are adopted and no dark energy models are assumed, our results from BOSS CMASS galaxy clustering alone may be combined with other data sets, i.e. CMB, SNe, lensing or other galaxy clustering data to constrain the parameters of a given cosmological model. We show that the major power on constraining dark energy from the anisotropic galaxy clustering signal, as compared to the angular-averaged one (monopole), arises from including the normalized growth rate f (z)σ8(z). In the case of the cosmological model assuming a constant dark energy equation of state and a flat universe (wCDM), our single-probe CMASS constraints, combined with CMB (WMAP9+SPT), yield a value for the dark energy equation-of-state parameter of w = −0.90 ± 0.11. Therefore, it is important to include f (z)σ8(z) while investigating the nature of dark energy with current and upcoming large-scale galaxy surveys.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/6a41664d2d7ea4a698f4f821b85c0952e984a3c2

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Citations in the corpus

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring growth rate and geometry with anisotropic clustering (2013, methodology): “The Chuang et al. (2013) analysis is in configuration space but uses a different range of scales and theoretical model than our work.”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological implications of the full shape of the clustering wedges in the data release 10 and 11 galaxy samples (2013, methodology): “These measurements have been complemented by analyses of the full shape of isotropic and anisotropic clustering measurements (Reid et al. 2012; Sánchez et al. 2012, 2013; Chuang et al. 2013a; Samushia et al. 2013a).”
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: observational systematics and baryon acoustic oscillations in the correlation function (2016, result): “…that the current and previous BOSS data sets produce precise and robust BAO and RSD measurements (c.f., Reid et al. 2012; Anderson et al. 2012; Chuang et al. 2013a; Kazin et al. 2013; Sánchez et al. 2013; Anderson et al. 2014a,b; Sánchez et al. 2014; Samushia et al. 2014; Cuesta et al.…”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Testing gravity with redshift-space distortions using the power spectrum multipoles (2013, methodology): “15 (right) shows our results compared to other CMASS-DR11 studies, namely Samushia et al. (2013b) (grey contours), Chuang et al. (2013b) (blue contours) and Sanchez et al. (2013) (orange contours).”
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the configuration-space clustering wedges (2016, methodology): “…measurements based on data from the SDSS-III (Eisenstein et al. 2011) Baryon Oscillation Spectroscopic Survey (BOSS; Dawson et al. 2013), clearly illustrated their constraining power (Anderson et al. 2014a,b; Reid et al. 2012; Chuang et al. 2013; Samushia et al. 2013, 2014; Beutler et al. 2014).”
THE SDSS-IV EXTENDED BARYON OSCILLATION SPECTROSCOPIC SURVEY: OVERVIEW AND EARLY DATA (2015, unknown): “The development and evaluation of analytic, phenomenological, and halo occupation models for anisotropic clustering remains a focus with the BOSS galaxy samples (e.g. Chuang et al. 2013; Beutler et al. 2014b; Guo et al. 2015).”
The power spectrum and bispectrum of SDSS DR11 BOSS galaxies – I. Bias and gravity (2014, result): “For this reason, our analysis is complementary to and independent of that of Beutler et al. (2014), Chuang et al. (2013), Samushia et al. (2014) and Sánchez et al. (2014), who use the quadruple to monopole ratio.”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements from CMASS anisotropic galaxy clustering (2013, methodology): “…from CMB data (Planck) with our measurement (red square), and other measurements (black circles and blue triangles; Chuang & Wang 2012, 2013a,b; Chuang et al. 2013; Kazin et al. 2013; Xu et al. 2013; Anderson et al. 2014a,b; Beutler et al. 2014; Hemantha et al. 2014; Wang 2014; Gil-Marin et…”
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample (2016, methodology): “RSD measurements from earlier BOSS data releases, using a variety of technical approaches, include Reid et al. (2012, 2014); Tojeiro et al. (2012); Chuang et al. (2013a); Samushia et al. (2013, 2014); Sánchez et al. (2013, 2014); Beutler et al. (2014a); Gil-Marı́n et al. (2016b); Alam et al.…”
Modelling the anisotropic two-point galaxy correlation function on small scales and single-probe measurements of H(z), DA(z) and f(z)σ8(z) from the Sloan Digital Sky Survey DR7 luminous red galaxies (2012, methodology): “Most recently, Chuang et al. (2013) applied similar analysis as this paper on the SDSS-III/BOSS DR9 sample to measure H(z), DA(z), mh2 and f (z)σ 8(z) without CMB priors.”
A buyer’s guide to the Hubble constant (2021, unknown): “For further details, see Kitaura et al. (2016).”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies (2016, methodology): “14 displays the fσ8 measurements based on the following DR11 and DR12 works: Chuang et al. (2013);Beutler et al. (2014); Samushia et al. (2014);Sánchez et al. (2014);Reid et al. (2014);Alam et al. (2015b);Gil-Maŕın et al. (2015a);Gil-Maŕın et al. (2016a).”