The WiggleZ Dark Energy Survey: joint measurements of the expansion and growth history at z < 1

By C. Blake, S. Brough, M. Colless, C. Contreras, W. Couch, Scott M. Croom, Darren Croton, T. Davis, Michael Drinkwater, K. Forster and 16 more. 2012

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We perform a joint determination of the distance–redshift relation and cosmic expansion rate at redshifts z = 0.44, 0.6 and 0.73 by combining measurements of the baryon acoustic peak and Alcock–Paczynski distortion from galaxy clustering in the WiggleZ Dark Energy Survey, using a large ensemble of mock catalogues to calculate the covariance between the measurements. We find that D_A(z) = (1205 ± 114, 1380 ± 95, 1534 ± 107) Mpc and H(z) = (82.6 ± 7.8, 87.9 ± 6.1, 97.3 ± 7.0) km s^(−1) Mpc^(−1) at these three redshifts. Further combining our results with other baryon acoustic oscillation and distant supernovae data sets, we use a Monte Carlo Markov Chain technique to determine the evolution of the Hubble parameter H(z) as a stepwise function in nine redshift bins of width Δz = 0.1, also marginalizing over the spatial curvature. Our measurements of H(z), which have precision better than 7 per cent in most redshift bins, are consistent with the expansion history predicted by a cosmological constant dark energy model, in which the expansion rate accelerates at redshift z < 0.7.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/c4669575db3c58b6bc65535a204d9e88d65d30cb

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Citations in the corpus

HUBBLE PARAMETER MEASUREMENT CONSTRAINTS ON THE REDSHIFT OF THE DECELERATION–ACCELERATION TRANSITION, DYNAMICAL DARK ENERGY, AND SPACE CURVATURE (2016, methodology): “…DATA COMPILATION In Table 1 we collect 38 Hubble parameter H(z) measurements from Simon et al. (2005), Stern et al. (2010), Moresco et al. (2012), Blake et al. (2012), Zhang et al. (2012), Font-Ribera et al. (2014), Delubac et al. (2015), Moresco (2015), Moresco et al. (2016), and Alam et al.…”
The Intrinsic Alignment of Galaxies and its Impact on Weak Gravitational Lensing in an Era of Precision Cosmology (2014, methodology): “These comparisons have been combined to some extent in Blazek et al. (2011), for example, who recently performed a systematic analysis to test the linear alignment model using several statistics and methods (i.e., the projected correlation wg+(rp), the alignment correlation function wp(θp, rp), the ”
Hubble Parameter and Baryon Acoustic Oscillation Measurement Constraints on the Hubble Constant, the Deviation from the Spatially Flat ΛCDM Model, the Deceleration–Acceleration Transition Redshift, and Spatial Curvature (2017, methodology): “Current H(z) data covers a large redshift range, 0.07 z 2.36 (Simon et al. 2005; Stern et al. 2010; Blake et al. 2012; Moresco et al. 2012; Font-Ribera et al. 2014; Delubac et al. 2015; Moresco 2015; Moresco et al. 2016; Alam et al. 2017), larger than that covered by the Type Ia supernovae.”
Evolution of the f σ 8 tension with the Planck 15 / Λ CDM determination and implications for modified gravity theories (2018, neutral): “080 [46] 12 June 2012 (Ω0m, h, σ8) = (0.”
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample (2016, background): “…measurements of fσ8 results those from other surveys: 2dfGRS (Percival et al. 2004b), 6dFGS (Beutler et al. 2012), GAMA (Blake et al. 2013), WiggleZ (Blake et al. 2012), VVDS (Guzzo et al. 2008), and VIPERS (de la Torre et al. 2013), as well as the measurements from the SDSS-I and -II main galaxy…”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring growth rate and geometry with anisotropic clustering (2013, methodology): “Simultaneous fits to RSD and AP parameters have been performed for the WiggleZ survey (Blake et al. 2012), SDSS-II data (Chuang & Wang 2013) and SDSS-III BOSS DR9 data (Reid et al. 2012).”
KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering (2017, background): “…deviations from GR with the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS; Heymans et al. 2012; Hildebrandt et al. 2012; Erben et al. 2013; Miller et al. 2013), WiggleZ Dark Energy Survey (Blake et al. 2011, 2012), and the 6-degree-Field Galaxy Survey (6dFGS; Beutler et al. 2011, 2012).”
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements from CMASS anisotropic galaxy clustering (2013, methodology): “…clustering allows us to differentiate smooth dark energy and modified gravity as the cause for cosmic acceleration through the simultaneous measurements of the cosmic expansion history H(z) and the growth rate of cosmic large scale structure, f(z) (Guzzo et al. 2008; Wang 2008; Blake et al. 2012).”
Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from two decades of spectroscopic surveys at the Apache Point Observatory (2020, methodology): “…(Riess et al. 2011), and the BOSS BAO measurements (Anderson et al. 2012), together with those from the 6dFGS, SDSS-II and WiggleZ surveys (Beutler et al. 2011; Padmanabhan et al. 2012; Blake et al. 2012) led to a 95% upper limit of 0.44 eV on the sum of the neutrino masses (Hinshaw et al. 2013).”
Nonlocal gravity. Conceptual aspects and cosmological predictions (2017, background): “The data points are from 6dF GRS [137] (red), SDSS LRG [138] (green), BOSS CMASS [139] (purple), WiggleZ [140] (orange), VIPERS [141] (black) and BOSS DR12 [142] (cyan).”