The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: First measurement of Baryon Acoustic Oscillations between redshift 0.8 and 2.2

Abstract

We present measurements of the Baryon Acoustic Oscillation (BAO) scale in redshift-space using the clustering of quasars. We consider a sample of 147,000 quasars from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) distributed over 2044 square degrees with redshifts $0.8<z<2.2$ and measure their spherically-averaged clustering in both configuration and Fourier space. Our observational dataset and the 1400 simulated realizations of the dataset allow us to detect a preference for BAO that is greater than 2.8$\sigma$. We determine the spherically averaged BAO distance to $z=1.52$ to 3.8 per cent precision: $D_V(z=1.52)=3843\pm 147\left(r_{\mathrm{d}}/r_{\mathrm{d},\mathrm{fid}}\right)$Mpc. This is the first time the location of the BAO feature has been measured between redshifts 1 and 2. Our result is fully consistent with the prediction obtained by extrapolating the Planck flat $\Lambda$CDM best-fit cosmology. All of our results are consistent with basic large-scale structure (LSS) theory, confirming quasars to be a reliable tracer of LSS, and provide a starting point for numerous cosmological tests to be performed with eBOSS quasar samples. We combine our result with previous, independent, BAO distance measurements to construct an updated BAO distance-ladder. Using these BAO data alone and marginalizing over the length of the standard ruler, we find ${\Omega }_{\Lambda }>0$ at 6.6$\sigma$ significance when testing a $\Lambda$CDM model with free curvature.

arXiv commentAccepted by MNRAS; BAO distance likelihood available in source files 'QSOv1.9fEZmock_BAOchi2.dat'; full set of data to be public eventually from SDSS website

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• The dark matter bispectrum from effective viscosity and one-particle irreducible vertices
• Cosmological test of an extended quintessence model
• Fisher forecast for the BAO measurements from the CSST spectroscopic and photometric galaxy clustering
• Cosmological constant constraints from observation-derived energy condition bounds and their application to bimetric massive gravity
• An Independent Measure of the Kinematic Dipole from SDSS
• Holographic Dark Energy from the Anti-de Sitter Black Hole
• Endowing $\mathbf{\Lambda }$ with a dynamic nature: constraints in a spatially curved Universe
• Cosmic void exclusion models and their impact on the distance scale measurements from large scale structure
• On the $2^{\text{nd}}$ feature of the matter two-point function
• Effects of Dark Energy anisotropic stress on the matter power spectrum
• Nonlinear power spectrum in clustering and smooth dark energy models beyond the BAO scale
• Evolution of Dark Energy Perturbations for Slotheon Field and Power Spectrum
• The environmental dependence of the baryon acoustic peak in the Baryon Oscillation Spectroscopic Survey CMASS sample
• 2D BAO vs 3D BAO: Hints for new physics?
• The establishment of the Standard Cosmological Model through observations
• Prospects for cosmological research with the FAST array: 21-cm intensity mapping survey observation strategies
• Learning the Universe: Learning to Optimize Cosmic Initial Conditions with Non-Differentiable Structure Formation Models
• Beyond Fisher Forecasting for Cosmology
• Mass assembly history of dark matter halos in the light of $H_0$ tension
• Detection significance of Baryon Acoustic Oscillations peaks in galaxy and quasar clustering
• Voids and Halos in Voids statistics as a probe of the Expansion History of the Universe
• Exploring the Evolution of Nonlinear Electrodynamics in the Universe: A Dynamical Systems Approach
• Reconstruction of energy conditions from observations and implications for extended theories of gravity
• Hints of the $H_0-r_d$ tension in uncorrelated Baryon Acoustic Oscillations dataset
• Local Limit of Nonlocal Gravity: Cosmological Perturbations
• Cosmology on a Gravitational Wave Background
• Hubble Tension and Dark Energy in Teleparallel Gauss-Bonnet Gravity: New Constraints from DESI BAO, Pantheon${}^{+}$ and Hubble Data
• Reconciling cosmic dipolar tensions with a gigaparsec void
• Quintessence and tachyon dark energy in interaction with dark matter: Observational constraints and model selection
• Dissipative Emergence of Inflation from Quasi-Cyclic Universe
• Reconstructing HI power spectrum with minimal parameters using the dark matter distribution beyond halos
• Late Time Phenomena in $f(T,\mathcal{T})$ Gravity Framework: Role of $H_0$ Priors
• Baryon Acoustic Oscillation detections from the clustering of massive halos and different density region tracers in TianNu simulation
• Non-Affine Extensions of the Raychaudhuri Equation in the K-essence Framework
• Equivalence of Dark Energy Models: A Theoretical and Bayesian Perspective
• Monopole Fluctuations in Galaxy Surveys
• Improved source classification and performance analysis using Gaia DR3
• Dark Energy Survey: DESI-Independent Angular BAO Measurement
• Constraints on Multicomponent Dark Energy from Cosmological Observations
• Z-Sequence: Photometric redshift predictions for galaxy clusters with sequential random k-nearest neighbours
• On the possibility of Baryon Acoustic Oscillation measurements at redshift $z>7.6$ with the Roman Space Telescope
• On the tomographic cluster clustering as a cosmological probe
• Mimetic Tensor-Vector-Scalar Cosmology: Incorporating Dark Matter, Dark Energy and Stiff Matter
• Role of Spatial Curvature in a Dark Energy Interacting Model
• A step in the right direction? Analyzing the Wess Zumino Dark Radiation solution to the Hubble tension
• Confronting Einstein Yang Mills Higgs Dark Energy in light of observations
• The equation and solution of 4-point correlation function of galaxies in Gaussian approximation and its parity-odd part
• Dark Energy Survey Year 3 Results: Galaxy Sample for BAO Measurement
• A gigaparsec-scale local void and the Hubble tension
• Geometry vs growth: Internal consistency of the flat ΛCDM model with KiDS-1000
• Ricci cosmology in light of astronomical data
• A New Wavelet Scattering Transform-Based Statistic for Cosmological Analysis of Large-Scale Structure
• Ricci-Cubic Holographic Dark Energy: Confronting Observations, Stability and the Cosmic Coincidence Problem
• From Geometry to Observation: Gravitational Waves and the Raychaudhuri Equation
• An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment
• The nonlinear equation of correlation function of galaxies in the expanding universe and the solution in linear approximation
• Bayesian evidence and model selection approach for time-dependent dark energy
• Intermediate redshift calibration of Gamma-ray Bursts and cosmic constraints in non-flat cosmology
• Testing Large-Scale Structure Measurements Against Fisher Matrix Predictions
• The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey quasar sample: Testing observational systematics on the Baryon Acoustic Oscillation measurement