Target Selection and Validation of DESI Emission Line Galaxies

Raichoor, A. et al.--Full list of authors: Raichoor, A.; Moustakas, J.; Newman, Jeffrey A.; Karim, T.; Ahlen, S.; Alam, Shadab; Bailey, S.; Brooks, D.; Dawson, K.; de la Macorra, A.; de Mattia, A.; Dey, A.; Dey, Biprateep; Dhungana, G.; Eftekharzadeh, S.; Eisenstein, D. J.; Fanning, K.; Font-Ribera,...

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Detalles Bibliográficos
Autores: Raichoor, Anand, García-Bellido, Juan, Gaztañaga, Enrique, Prada, Francisco, Zou, Hu
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/309467
Acceso en línea:http://hdl.handle.net/10261/309467
Access Level:acceso abierto
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network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Target Selection and Validation of DESI Emission Line Galaxies
title Target Selection and Validation of DESI Emission Line Galaxies
spellingShingle Target Selection and Validation of DESI Emission Line Galaxies
Raichoor, Anand
title_short Target Selection and Validation of DESI Emission Line Galaxies
title_full Target Selection and Validation of DESI Emission Line Galaxies
title_fullStr Target Selection and Validation of DESI Emission Line Galaxies
title_full_unstemmed Target Selection and Validation of DESI Emission Line Galaxies
title_sort Target Selection and Validation of DESI Emission Line Galaxies
dc.creator.none.fl_str_mv Raichoor, Anand
García-Bellido, Juan
Gaztañaga, Enrique
Prada, Francisco
Zou, Hu
author Raichoor, Anand
author_facet Raichoor, Anand
García-Bellido, Juan
Gaztañaga, Enrique
Prada, Francisco
Zou, Hu
author_role author
author2 García-Bellido, Juan
Gaztañaga, Enrique
Prada, Francisco
Zou, Hu
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Department of Energy (US)
National Energy Research Scientific Computing Center (US)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Raichoor, A. et al.--Full list of authors: Raichoor, A.; Moustakas, J.; Newman, Jeffrey A.; Karim, T.; Ahlen, S.; Alam, Shadab; Bailey, S.; Brooks, D.; Dawson, K.; de la Macorra, A.; de Mattia, A.; Dey, A.; Dey, Biprateep; Dhungana, G.; Eftekharzadeh, S.; Eisenstein, D. J.; Fanning, K.; Font-Ribera, A.; Garcia-Bellido, J.; Gaztanaga, E.; Gontcho, S. Gontcho A.; Guy, J.; Honscheid, K.; Ishak, M.; Kehoe, R.; Kisner, T.; Kremin, Anthony; Lan, Ting-Wen; Landriau, M.; Le Guillou, L.; Levi, Michael E.; Magneville, C.; Manera, M.; Martini, P.; Meisner, Aaron M.; Myers, Adam D.; Nie, Jundan; Palanque-Delabrouille, N.; Percival, W. J.; Poppett, C.; Prada, F.; Ross, A. J.; Ruhlmann-Kleider, V.; Sabiu, C. G.; Schlafly, E. F.; Schlegel, D.; Tarle, Gregory; Weaver, B. A.; Yeche, Christophe; Zhou, Rongpu; Zhou, Zhimin; Zou, H.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/309467
url http://hdl.handle.net/10261/309467
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3847/1538-3881/acb213
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling Target Selection and Validation of DESI Emission Line GalaxiesRaichoor, AnandGarcía-Bellido, JuanGaztañaga, EnriquePrada, FranciscoZou, HuRaichoor, A. et al.--Full list of authors: Raichoor, A.; Moustakas, J.; Newman, Jeffrey A.; Karim, T.; Ahlen, S.; Alam, Shadab; Bailey, S.; Brooks, D.; Dawson, K.; de la Macorra, A.; de Mattia, A.; Dey, A.; Dey, Biprateep; Dhungana, G.; Eftekharzadeh, S.; Eisenstein, D. J.; Fanning, K.; Font-Ribera, A.; Garcia-Bellido, J.; Gaztanaga, E.; Gontcho, S. Gontcho A.; Guy, J.; Honscheid, K.; Ishak, M.; Kehoe, R.; Kisner, T.; Kremin, Anthony; Lan, Ting-Wen; Landriau, M.; Le Guillou, L.; Levi, Michael E.; Magneville, C.; Manera, M.; Martini, P.; Meisner, Aaron M.; Myers, Adam D.; Nie, Jundan; Palanque-Delabrouille, N.; Percival, W. J.; Poppett, C.; Prada, F.; Ross, A. J.; Ruhlmann-Kleider, V.; Sabiu, C. G.; Schlafly, E. F.; Schlegel, D.; Tarle, Gregory; Weaver, B. A.; Yeche, Christophe; Zhou, Rongpu; Zhou, Zhimin; Zou, H.The Dark Energy Spectroscopic Instrument (DESI) will precisely constrain cosmic expansion and the growth of structure by collecting ∼40 million extragalactic redshifts across ∼80% of cosmic history and one-third of the sky. The Emission Line galaxy (ELG) sample, which will comprise about one-third of all DESI tracers, will be used to probe the universe over the 0.6 < z < 1.6 range, including the 1.1 < z < 1.6 range, which is expected to provide the tightest constraints. We present the target selection for the DESI Survey Validation (SV) and Main Survey ELG samples, which relies on the imaging of the Legacy Surveys. The Main ELG selection consists of a g-band magnitude cut and a (g − r) versus (r − z) color box, while the SV selection explores extensions of the Main selection boundaries. The Main ELG sample is composed of two disjoint subsamples, which have target densities of about 1940 deg−2 and 460 deg−2, respectively. We first characterize their photometric properties and density variations across the footprint. We then analyze the DESI spectroscopic data that have been obtained from 2020 December to 2021 December in the SV and Main Survey. We establish a preliminary criterion for selecting reliable redshifts, based on the [O ii] flux measurement, and assess its performance. Using this criterion, we are able to present the spectroscopic efficiency of the Main ELG selection, along with its redshift distribution. We thus demonstrate that the Main selection 1940 deg−2 subsample alone should provide 400 deg−2 and 460 deg−2 reliable redshifts in the 0.6 < z < 1.1 and the 1.1 < z < 1.6 ranges, respectively. © 2023. The Author(s). Published by the American Astronomical Society.J.M. gratefully acknowledges support from the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award Number DE-SC0020086. This research is supported by the Director, Office of Science, Office of High Energy Physics of the U.S. Department of Energy, under Contract No. DE-AC02-05CH11231, and by the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility, under the same contract; additional support for DESI is provided by the U.S. National Science Foundation, Division of Astronomical Sciences, under Contract No. AST-0950945 to the NSF's National Optical-Infrared Astronomy Research Laboratory; the Science and Technologies Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Science and Technology of Mexico (CONACYT); the Ministry of Science and Innovation of Spain (MICINN), and the DESI Member Institutions: https://www.desi.lbl.gov/collaborating-institutions. The DESI Legacy Imaging Surveys consist of three individual and complementary projects: the Dark Energy Camera Legacy Survey (DECaLS), the Beijing–Arizona Sky Survey (BASS), and the Mayall z-band Legacy Survey (MzLS). DECaLS, BASS, and MzLS together include data obtained, respectively, at the Blanco telescope, Cerro Tololo Inter-American Observatory, NSF's NOIRLab; the Bok telescope, Steward Observatory, University of Arizona; and the Mayall telescope, Kitt Peak National Observatory, NOIRLab. NOIRLab is operated by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. Pipeline processing and analyses of the data were supported by NOIRLab and the Lawrence Berkeley National Laboratory. Legacy Surveys also use data products from the Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE), a project of the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. Legacy Surveys are supported by: the Director, Office of Science, Office of High Energy Physics of the U.S. Department of Energy; the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility; the U.S. National Science Foundation, Division of Astronomical Sciences; the National Astronomical Observatories of China, the Chinese Academy of Sciences; and the Chinese National Natural Science Foundation. LBNL is managed by the Regents of the University of California, under contract to the U.S. Department of Energy. The complete acknowledgments can be found at https://www.legacysurvey.org.Peer reviewedIOP PublishingMinisterio de Ciencia e Innovación (España)Department of Energy (US)National Energy Research Scientific Computing Center (US)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/309467reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3847/1538-3881/acb213Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3094672026-05-22T06:33:51Z
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