Tight $H_0$ constraint from galaxy redshfit surveys: combining baryon acoustic osillation measurements and Alcock-Paczynski test

Abstract

We report a tight Hubble constant constraint $67.78_{-1.86}^{+1.21}$ km s${}^{-1}$ Mpc${}^{-1}$ (2.26\% precision) derived from galaxy redshift surveys. We combine the BAO measurements from 6dFGS, the SDSS DR7 main galaxies, the BOSS DR12 galaxies, and eBOSS DR14 quasars, and also apply the tomographic Alcock-Paczynski (AP) method to the BOSS DR12 galaxies, to place constraints on $H_0$ in the spatially flat $\Lambda$CDM framework. Our result is fully consistent with the CMB constraints from Planck, but in $2.58\sigma$ tension with local measurements of Riess et al. 2016. Compared with the BAO alone constraint, the BAO+AP combined result reduces the error bar by 32%. This shows the strong power of the tomographic AP method in extracting cosmological information from galaxy redshift surveys.

8 pages, 3 figures, 1 table

References in corpus (13)

• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• A gravitational-wave standard siren measurement of the Hubble constant
• A fitting formula for the merger timescale of galaxies in hierarchical clustering
• How the Dark Energy Can Reconcile \textit{Planck} with Local Determination of the Hubble Constant
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in Fourier space
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski effect: application to the SDSS-III BOSS DR12 galaxies
• Cosmology at at Crossroads: Tension with the Hubble Constant
• A measurement of the Hubble constant using galaxy redshift surveys
• Cosmology with clustering anisotropies: disentangling dynamic and geometric distortions in galaxy redshift surveys
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski effect: Dynamical dark energy
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski test and volume effect: galaxy two-point correlation function
• Isotropic vs. Anisotropic components of BAO data: a tool for model selection
• New cosmological constraints with extended-Baryon Oscillation Spectroscopic Survey DR14 quasar sample

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• Measuring the Hubble constant and spatial curvature from supernova apparent magnitude, baryon acoustic oscillation, and Hubble parameter data
• An Accelerating Cosmological Model from a Parametrization of Hubble Parameter
• Tomographic Alcock-Paczynski Test with Redshift-Space Correlation Function: Evidence for the Dark Energy Equation of State Parameter w>-1
• Non-parametric dark energy reconstruction using the tomographic Alcock-Paczynski test
• The redshift dependence of Alcock-Paczynski effect: cosmological constraints from the current and next generation observations
• Cosmological Parameter Estimation from the Two-Dimensional Genus Topology -- Measuring the Expansion History using the Genus Amplitude as a Standard Ruler
• Implications for cosmology from Ground-based Cosmic Microwave Background observations
• Flatness without CMB - the Entanglement of Spatial Curvature and Dark Energy Equation of State
• Probing cosmology via the clustering of critical points
• Tomographic Alcock-Paczynski Method with Redshift Errors
• Cosmological constraints from the density gradient weighted correlation function