Baryon acoustic oscillations in the Lyα forest of BOSS DR11 quasars

By T. Delubac, Julián Bautista, N. Busca, J. Rich, David Kirkby, S. Bailey, A. Font-Ribera, A. Slosar, K. Lee, M. Pieri and 28 more. 2014

794 citations recorded by the source corpus.

We report a detection of the baryon acoustic oscillation (BAO) feature in the flux-correlation function of the Ly forest of high-redshift quasars with a statistical significance of five standard deviations. The study uses 137,562 quasars in the redshift range 2:1 z 3:5 from the Data Release 11 (DR11) of the Baryon Oscillation Spectroscopic Survey (BOSS) of SDSS-III. This sample contains three times the number of quasars used in previous studies. The measured position of the BAO peak determines the angular distance, DA(z = 2:34) and expansion rate, H(z = 2:34), both on a scale set by the sound horizon at the drag epoch, rd. We find DA=rd =

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/4fde88c26a577b71d13f8eeb92e4d3ebe15d4835

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

Sounds Discordant: Classical Distance Ladder and ΛCDM-based Determinations of the Cosmological Sound Horizon (2018, background): “…at lower redshift from galaxy surveys (Beutler et al. 2011; Ross et al. 2015) and higher redshift constraints from BOSS Lyα (Font-Ribera et al. 2014; Delubac et al. 2015; Bautista et al. 2017) and find, from the BAO data themselves, assuming the ΛCDM model, that H0rs=(10,119±138) km s −1.”
Implications of an extended dark energy cosmology with massive neutrinos for cosmological tensions (2018, methodology): “We therefore incorporate them in the form a Gaussian likelihood and have verified that it gives similar results as the full DR11 likelihood [8, 45].”
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample (2016, background): “…(Anderson et al. 2012, 2014a,b; Tojeiro et al. 2014); and BAO measurements at z ≈ 2.5 in the BOSS Lyα forest using auto-correlations in DR9 (Busca et al. 2013; Slosar et al. 2013) and both auto-correlations and quasarLyα cross-correlations in DR11 (Font-Ribera et al. 2014; Delubac et al. 2015).”
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 (2017, methodology): “As well as using galaxies as direct tracers of the BAO, analyses of the Lyman-α Forest in quasar spectra with BOSS have provided cosmological measurements at z ∼ 2.3 (e.g. Delubac et al. 2015; Bautista et al. 2017).”
Measurement of BAO correlations at $z=2.3$ with SDSS DR12 \lya-Forests (2017, methodology): “The 0.5σ change in DH/rd is typical of the variations we can expect when increasing the sample size from DR11 to DR12.”
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, background): “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.”
The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations with Lyα Forests (2020, methodology): “The BAO scale was first measured in the Lyα autocorrelation function (Busca et al. 2013; Kirkby et al. 2013; Slosar et al. 2013; Delubac et al. 2015; Bautista et al. 2017; de Sainte Agathe et al. 2019), and then in the Lyα–quasar cross-correlation function (Font-Ribera et al. 2014; du Mas des…”
Dark Energy Survey Year 1 results: measurement of the baryon acoustic oscillation scale in the distribution of galaxies to redshift 1 (2017, background): “…II, III, and IV (Eisenstein et al. 2005; Gaztañaga, Cabré & Hui 2009; Percival & et al. 2010; Ross et al. 2015a; Alam et al. 2016; Ata & et al. 2017; Delubac et al. 2015; Bautista et al. 2017a), the 2-degree Field Galaxy Redshift Survey (Percival et al. 2001; Cole et al. 2005), WiggleZ (Blake et…”