The BOSS Lyα Forest Sample from SDSS Data Release 9

We present the BOSS Lyman-α (Lyα) Forest Sample from SDSS Data Release 9, comprising 54,468 quasar spectra with z qso > 2.15 suitable for Lyα forest analysis. This data set probes the intergalactic medium with absorption redshifts 2.0 < z α 1216 Å), extrapolated into the forest region and normalized by a linear function to fit the expected evolution of the Lyα forest mean flux. The estimated continuum errors are <~ 5% rms. We also discuss possible systematics arising from uncertain spectrophotometry and artifacts in the flux calibration; global corrections for the latter are provided. Our sample provides a convenient starting point for users to analyze clustering in BOSS Lyα forest data, and it provides a fiducial data set that can be used to compare results from different analyses of baryon acoustic oscillations in the Lyα forest. The full data set is available from the SDSS-III DR9 Web site.

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Source ISSN: 0004-6256
Author Lee, Khee-Gan, Bailey, Stephen, Bartsch, Leslie E., Carithers, William, Dawson, Kyle S., Kirkby, David, Lundgren, Britt, Margala, Daniel, Palanque-Delabrouille, Nathalie, Pieri, Matthew M., Schlegel, David J., Weinberg, David H., Yèche, Christophe, Aubourg, É., Bautista, J.E., Bizyaev, Dmitry, Blomqvist, Michael, Bolton, Adam S., Borde, Arnaud, Brewington, Howard, Busca, N.G., Croft, Rupert A. C., Delubac, Timothée, Ebelke, Garrett, Eisenstein, Daniel J., Font-Ribera, Andreu, Ge, Jian, Hamilton, J.-C., Hennawi, Joseph F., Ho, Shirley, Honscheid, Klaus, Le Goff, Jean-Marc, Malanushenko, Elena, Malanushenko, Viktor, Miralda-Escudé, Jordi, Myers, Adam D., Noterdaeme, Pasquier, Oravetz, Daniel, Pan, Kaike, Pâris, Isabelle, Petitjean, Patrick, Rich, James, Rollinde, Emmanuel, Ross, Nicholas P., Rossi, Graziano, Schneider, Donald P., Simmons, Audrey, Snedden, Stephanie, Slosar, Anže, Spergel, David N., Suzuki, Nao, Viel, Matteo, Weaver, Benjamin A.
Maintainer CCSD
Last Updated May 11, 2026, 02:36 (UTC)
Created May 11, 2026, 02:36 (UTC)
Identifier in2p3-00823680
Language en
contributor APC - Cosmologie ; AstroParticule et Cosmologie (APC (UMR_7164)) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris ; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris ; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
creator Lee, Khee-Gan
date 2013-03-11T00:00:00
harvest_object_id 855d95df-f1a9-4027-9371-4955d5d7544b
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2026-04-27T00:00:00
relation info:eu-repo/semantics/altIdentifier/arxiv/1211.5146
set_spec type:ART