The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at Redshift of 0.72 with the DR14 Luminous Red Galaxy Sample

By Julián Bautista, M. Vargas-Magaña, K. Dawson, Will J. Percival, J. Brinkmann, J. Brownstein, Benjamin Camacho, J. Comparat, H. Gil-Marín, E. Mueller and 9 more. Astrophysical Journal, 2017

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The extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 sample includes 80,118 luminous red galaxies (LRGs). By combining these galaxies with the high-redshift tail of the BOSS galaxy sample, we form a sample of LRGs at an effective redshift z = 0.72, covering an effective volume of 0.9 Gpc3. We account for spurious fluctuations caused by targeting and by redshift failures, which were validated on a set of mock catalogs. This analysis is sufficient to provide a 2.5% measurement of spherically averaged baryon acoustic oscillations (BAO), Mpc, at 2.8σ of significance. Together with the recent quasar-based BAO measurement at z = 1.5 and forthcoming emission line galaxy–based measurements, this measurement demonstrates that eBOSS is fulfilling its remit of extending the range of redshifts covered by such measurements, laying the groundwork for forthcoming surveys such as the Dark Energy Spectroscopic Survey and Euclid.

Subfields: Astronomy and Astrophysics, Electrical and Electronic Engineering, Instrumentation

View Paper: https://www.semanticscholar.org/paper/3a2c3c68755e350e157968274c6615b3ca210d0b

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Citations in the corpus

The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations with Lyα Forests (2020, unknown): “…al. 2007, 2010; Beutler et al. 2011; Blake et al. 2011; Anderson et al. 2012, 2014a, 2014b; Chuang & Wang 2012; Mehta et al. 2012; Padmanabhan et al. 2012; Xu et al. 2013; Ross et al. 2015; Alam et al. 2017; Bautista et al. 2018), galaxy clusters (Hong et al. 2016), and quasars (Ata et al. 2018).”
Baryon acoustic oscillations at z = 2.34 from the correlations of Lyα absorption in eBOSS DR14 (2019, background): “…discrete objects like galaxies (Percival et al. 2010; Reid et al. 2010; Beutler et al. 2011; Blake et al. 2011; Anderson et al. 2012, 2014a,b; Ross et al. 2015; Alam et al. 2017; Bautista et al. 2018) or quasars (Ata et al. 2018; Gil-Marín et al. 2018; Hou et al. 2018; Zarrouk et al. 2018).”
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: a tomographic measurement of cosmic structure growth and expansion rate based on optimal redshift weights (2018, methodology): “0.1 1 2.5 10 20 30 40 DES Y1 MGS 6dFGS WiggleZ DR7 This work Gil-Marin++ (18) DR14 LRG DR12 LyαB DR12 consensus DR12 9-z redshift z redshift z 0 1 2 0.0 0.2 0.4 0.6 0.8 ΛCDM s=1 s”
Dark Energy Survey Year 1 results: measurement of the baryon acoustic oscillation scale in the distribution of galaxies to redshift 1 (2017, methodology): “Finally, we note that Bautista et al. (2018) use the same redshift range for BAO measurements as we do in this analysis.”
The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library (2018, methodology): “These data enabled the first baryon acoustic oscillation (BAO) measurement in the 1 < z < 2 redshift range from quasars (Ata et al. 2018) and a 2.6% precision constraint on the distance scale using the clustering of LRG’s (Bautista et al. 2018).”
Baryon acoustic oscillations from the cross-correlation of Lyα absorption and quasars in eBOSS DR14 (2019, methodology): “(50) and (51)), the galaxy data of Alam et al. (2017), Beutler et al. (2011) Ross et al. (2015) and Bautista et al. (2018) and the quasar data of Ata et al. (2018) yields ΩM = 0.293 ± 0.027, ΩΛ = 0.675 ± 0.099 (53) corresponding to Ωk = 0.032 ± 0.117.”