The WiggleZ Dark Energy Survey: Final data release and cosmological results

By David Parkinson, S. Riemer-Sørensen, C. Blake, Gregory B. Poole, T. Davis, S. Brough, M. Colless, C. Contreras, W. Couch, Scott M. Croom and 19 more. 2012

207 citations recorded by the source corpus.

This paper presents cosmological results from the final data release of the WiggleZ Dark Energy Survey. We perform full analyses of different cosmological models using the WiggleZ power spectra measured at z=0.22, 0.41, 0.60, and 0.78, combined with other cosmological data sets. The limiting factor in this analysis is the theoretical modeling of the galaxy power spectrum, including nonlinearities, galaxy bias, and redshift-space distortions. In this paper we assess several different methods for modeling the theoretical power spectrum, testing them against the Gigaparsec WiggleZ simulations (GiggleZ). We fit for a base set of six cosmological parameters, {Ω_(b)h^2,Ω_(CDM)h^2,H_0,τ,A_s,n_s}, and five supplementary parameters {n_(run),r,w,Ω_k,∑m_ν}. In combination with the cosmic microwave background, our results are consistent with the ΛCDM concordance cosmology, with a measurement of the matter density of Ωm=0.29±0.016 and amplitude of fluctuations σ_8=0.825±0.017. Using WiggleZ data with cosmic microwave background and other distance and matter power spectra data, we find no evidence for any of the extension parameters being inconsistent with their ΛCDM model values. The power spectra data and theoretical modeling tools are available for use as a module for CosmoMC, which we here make publicly available at http://smp.uq.edu.au/wigglez-data. We also release the data and random catalogs used to construct the baryon acoustic oscillation correlation function.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f36b99b72b497fc114779d9845e06febe875392f

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Citations in the corpus

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in Fourier space (2016, background): “…2014; Alam et al. 2016; Beutler et al. 2016, 2017; Cuesta et al. 2016; Gil-Marı́n et al. 2016; Ross et al. 2017), the two-degree Field Galaxy Redshift Survey (Cole et al. 2005), WiggleZ (Blake et al. 2011; Parkinson et al. 2012), the six-degree Field Galaxy Survey (Beutler et al. 2011) and so on.”
Cosmic Discordance: Are Planck CMB and CFHTLenS weak lensing measurements out of tune? (2014, methodology): “They use the CMB combined with low-redshift clustering measurements from the growth of structure obtained by Parkinson et al. (2012), Planck SZ and the parameterised fit to the CFHTLenS constraints of Kilbinger et al. (2013).”
Using the Full Power of the Cosmic Microwave Background to Probe Axion Dark Matter (2017, methodology): “H15 used the Planck Collaboration et al. (2014) CMB T T auto-correlation power spectrum and the Parkinson et al. (2012) galaxy-galaxy auto-correlation power.”
A fresh look at linear cosmological constraints on a decaying Dark Matter component (2016, methodology): “Within ΛCDM, one can see that the addition of the data in tension, namely HST, CFHT and Planck clusters (only 3 datapoints, dubbed dataset ExtA), degrades the χ2min,eff , defined as −2 log (Likelihood), by 31.2 (cf. PlanckTTTEEE+ExtB vs PlanckTTTEEE+ExtA+ExtB in Table 2; the dataset ExtB is composed”
Observational probes of cosmic acceleration (2012, methodology): “Combining the WiggleZ, SDSS+2dFGRS (Percival et al., 2010), and 6dFGS BAO measurements with WMAP7 and the Union-2 SN compilation, Blake et al. (2011d) infer Ωm = 0.289±0.015, H0 = 68.7± 1.9 km s−1 Mpc−1, ΩK = −0.004± 0.006, and w = −1.03± 0.08 (where w is assumed to be constant with redshift).”
MontePython 3: Boosted MCMC sampler and other features (2018, background): “0 SC [87] WiggleZ bao WiggleZ BAO BAO 2.”
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the configuration-space clustering wedges (2016, background): “…about the nature of dark energy, potential deviations from the predictions of general relativity (GR), the physics of inflation, neutrino masses, etc. (Percival et al. 2002, 2010; Tegmark et al. 2004; Sánchez et al. 2006, 2009, 2012; Blake et al. 2011; Parkinson et al. 2012).”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements from CMASS anisotropic galaxy clustering (2013, background): “WiggleZ collected spectra of 240 000 emission-line galaxies at 0.5 < z < 1 over 1000 deg2 (Drinkwater et al. 2010; Parkinson et al. 2012), and the Baryon Oscillation Spectroscopic Survey (BOSS; Dawson et al. 2013) of the SDSS-III (Eisenstein et al. 2011) is surveying 1.5 million luminous red…”