The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale Structure Catalogs for Cosmological Analysis
Creators: name: Ross, Ashley J.
name: Bautista, Julian
name: Tojeiro, Rita
name: Alam, Shadab
name: Bailey, Stephen
name: Burtin, Etienne
name: Comparat, Johan
name: Dawson, Kyle S.
name: de Mattia, Arnaud
name: Bourboux, Hélion du Mas des
name: Gil-Marín, Héctor
name: Hou, Jiamin
name: Kong, Hui
name: Lyke, Brad W.
name: Mohammad, Faizan G.
name: Moustakas, John
name: Mueller, Eva-Maria
name: Myers, Adam D.
name: Percival, Will J.
name: Raichoor, Anand
name: Rezaie, Mehdi
name: Seo, Hee-Jong
name: Smith, Alex
name: Tinker, Jeremy L.
name: Zarrouk, Pauline
name: Zhao, Cheng
name: Zhao, Gong-Bo
name: Bizyaev, Dmitry
name: Brinkmann, Jonathan
name: Brownstein, Joel R.
name: Rosell, Aurelio Carnero
name: Chabanier, Solène
name: Choi, Peter D.
name: Chuang, Chia-Hsun
name: Cruz-Gonzalez, Irene
name: de la Macorra, Axel
name: de la Torre, Sylvain
name: Escoffier, Stephanie
name: Fromenteau, Sebastien
name: Higley, Alexandra
name: Jullo, Eric
name: Kneib, Jean-Paul
name: McLane, Jacob N.
name: Muñoz-Gutiérrez, Andrea
name: Neveux, Richard
name: Newman, Jeffrey A.
name: Nitschelm, Christian
name: Palanque-Delabrouille, Nathalie
name: Paviot, Romain
name: Pullen, Anthony R.
name: Rossi, Graziano
name: Ruhlmann-Kleider, Vanina
name: Schneider, Donald P.
name: Magaña, Mariana Vargas
name: Vivek, M.
name: Zhang, Yucheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present large-scale structure catalogs from the completed extended Baryon Oscillation Spectroscopic Survey (eBOSS). Derived from Sloan Digital Sky Survey (SDSS) -IV Data Release 16 (DR16), these catalogs provide the data samples, corrected for observational systematics, and random positions sampling the survey selection function. Combined, they allow large-scale clustering measurements suitable for testing cosmological models. We describe the methods used to create these catalogs for the eBOSS DR16 Luminous Red Galaxy (LRG) and Quasar samples. The quasar catalog contains 343,708 redshifts with $0.8 &lt; z &lt; 2.2$ over 4,808\,deg$^2$. We combine 174,816 eBOSS LRG redshifts over 4,242\,deg$^2$ in the redshift interval $0.6 &lt; z &lt; 1.0$ with SDSS-III BOSS LRGs in the same redshift range to produce a combined sample of 377,458 galaxy redshifts distributed over 9,493\,deg$^2$. Improved algorithms for estimating redshifts allow that 98 per cent of LRG observations result in a successful redshift, with less than one per cent catastrophic failures ($Δz &gt; 1000$ ${\rm km~s}^{-1}$). For quasars, these rates are 95 and 2 per cent (with $Δz &gt; 3000$ ${\rm km~s}^{-1}$). We apply corrections for trends between the number densities of our samples and the properties of the imaging and spectroscopic data. For example, the quasar catalog obtains a $χ^2$/DoF$= 776/10$ for a null test against imaging depth before corrections and a $χ^2$/DoF$=6/8$ after. The catalogs, combined with careful consideration of the details of their construction found here-in, allow companion papers to present cosmological results with negligible impact from observational systematic uncertainties.
description: Matches version accepted by MNRAS, very minor changes. A summary of all SDSS BAO and RSD measurements with accompanying legacy figures can be found here: https://www.sdss.org/science/final-bao-and-rsd-measurements/ . The full cosmological interpretation of these measurements can be found here: https://sdss.org/science/cosmology-results-from-eboss/