Dark Energy Survey Year 3 results: galaxy sample for BAO measurement
A. Carnero RosellUniversidad de La Laguna, Dpto. Astrofísica , E-38206 La Laguna, Tenerife, SpainM. Rodríguez-MonroyCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainM. CrocceInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainJ. Elvin-PooleCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAA. PorredonDepartment of Physics, The Ohio State University , Columbus, OH 43210, USAI. FerreroInstitute of Theoretical Astrophysics, University of Oslo , PO Box 1029 Blindern, NO-0315 Oslo, NorwayJ. Mena-FernándezCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainR. CawthonPhysics Department , 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390, USAJ. De VicenteCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainE. GaztañagaInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainA.J. RossCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAE. SánchezCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainI. Sevilla-NoarbeCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainO. AlvesLaboratório Interinstitucional de e-Astronomia – LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilF. Andrade-OliveiraLaboratório Interinstitucional de e-Astronomia – LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilJ. AsoreyCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainS. ÀvilaInstituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid , E-28049 Madrid, SpainA. Brandao-SouzaInstituto de Física Gleb Wataghin, Universidade Estadual de Campinas , 13083-859, Campinas, SP, BrazilH. CamachoInstituto de Física Teórica, Universidade Estadual Paulista , Al. Santos 647, São Paulo, BrazilKwan Chuen ChanInstitute of Space Sciences (ICE, CSIC) , Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, SpainA. FertéJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr., Pasadena, CA 91109, USAJ. MuirKavli Institute for Particle Astrophysics and Cosmology , PO Box 2450, Stanford University, Stanford, CA 94305, USAWalter RiquelmeInstituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid , E-28049 Madrid, SpainR. RosenfeldICTP South American Institute for Fundamental Research, Instituto de Física Teórica, Universidade Estadual Paulista , Al. Santos 647, São Paulo, BrazilD. Sanchez CidCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , E-28040 Madrid, SpainW G HartleyDepartment of Astronomy, University of Geneva , ch. d’Écogia 16, CH-1290 Versoix, SwitzerlandN. WeaverdyckDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAT. M. C. AbbottCerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory , Casilla 603, La Serena, ChileM. AguenaLaboratório Interinstitucional de e-Astronomia – LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilS AllamFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAJ. AnnisFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAE. BertinCNRS, UMR 7095, Institut d’Astrophysique de Paris , F-75014 Paris, FranceDavid BrooksDepartment of Physics and Astronomy, University College London , Gower Street, London WC1E 6BT, UKE. Buckley‐GeerFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAD. L. BurkeJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr., Pasadena, CA 91109, USAJosh CalcinoSchool of Mathematics and Physics, University of Queensland , Brisbane, QLD 4072, AustraliaD. CarolloINAF, Astrophysical Observatory of Turin , I-10025 Pino Torinese, ItalyM. Carrasco KindCenter for Astrophysical Surveys, National Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801, USAJ. CarreteroInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology , Campus UAB, E-08193 Bellaterra (Barcelona), SpainF. J. CastanderInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainA. ChoiCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAChristopher J. ConseliceJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester M13 9PL, UKM. CostanziInstitute for Fundamental Physics of the Universe , Via Beirut 2, I-34014 Trieste, ItalyL. N. da CostaObservatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilM. E. S. PereiraDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAT. M. DavisSchool of Mathematics and Physics, University of Queensland , Brisbane, QLD 4072, AustraliaS. DesaiDepartment of Physics, IIT Hyderabad , Kandi, Telangana 502285, IndiaH. T. DiehlFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAP. DoelDepartment of Physics and Astronomy, University College London , Gower Street, London WC1E 6BT, UKA. Drlica-WagnerFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAK. EckertDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAS. EverettA. E. EvrardDepartment of Astronomy, University of Michigan , Ann Arbor, MI 48109, USAB. FlaugherFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAP. FosalbaInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainJ. FriemanKavli Institute for Cosmological Physics, University of Chicago , Chicago, IL 60637, USAJ. García-BellidoInstituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid , E-28049 Madrid, SpainD. W. GerdesDepartment of Astronomy, University of Michigan , Ann Arbor, MI 48109, USAT. GiannantonioKavli Institute for Cosmology, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKKarl GlazebrookCentre for Astrophysics and Supercomputing, Swinburne University of Technology , Hawthorn, VIC 3122, AustraliaD. GruenFaculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr. 1, D-81679 Munich, GermanyR. A. GruendlDepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green Street, Urbana, IL 61801, USAJ. GschwendObservatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilG. GutiérrezFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAS. R. HintonSchool of Mathematics and Physics, University of Queensland , Brisbane, QLD 4072, AustraliaHollowood, Devon L.K. HonscheidCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAB. HoyleFaculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr. 1, D-81679 Munich, GermanyDragan HutererDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAD. J. JamesCenter for Astrophysics | Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USAAlex KimLawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USAE. KrauseDepartment of Astronomy/Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USAK. KuehnMacquarie UniversityO. LahavDepartment of Physics and Astronomy, University College London , Gower Street, London WC1E 6BT, UKGeraint F. LewisSydney Institute for Astronomy, School of Physics, A28, The University of Sydney , Sydney, NSW 2006, AustraliaC. LidmanThe Research School of Astronomy and Astrophysics, Australian National University , Canberra, ACT 2601, AustraliaM. LimaDepartamento de Física Matemática, Instituto de Física, Universidade de São Paulo , CP 66318, São Paulo, SP, 05314-970, BrazilM. A. G. MaiaLaboratório Interinstitucional de e-Astronomia – LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilU MalikThe Research School of Astronomy and Astrophysics, Australian National University , Canberra, ACT 2601, AustraliaJ. L. MarshallGeorge P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University , College Station, TX 77843, USAF. MenanteauDepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green Street, Urbana, IL 61801, USAR. MiquelInstitució Catalana de Recerca i Estudis Avançats , E-08010 Barcelona, SpainJ. J. MohrMax Planck Institute for Extraterrestrial Physics , Giessenbachstrasse, D-85748 Garching, GermanyA. MöllerUniversité Clermont Auvergne , CNRS/IN2P3, LPC, F-63000 Clermont-Ferrand, FranceR. MorganPhysics Department , 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390, USAR. L. C. OgandoObservatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilA. PalmeseKavli Institute for Cosmological Physics, University of Chicago , Chicago, IL 60637, USAF. Paz-ChinchónInstitute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKWill J. PercivalDepartment of Physics and Astronomy, University of Waterloo , 200 University Ave W, Waterloo, ON N2L 3G1, CanadaA. PieresLaboratório Interinstitucional de e-Astronomia – LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilA. A. PlazasDepartment of Astrophysical Sciences, Princeton University , Peyton Hall, Princeton, NJ 08544, USAA. RoodmanSLAC National Accelerator Laboratory , Menlo Park, CA 94025, USAV. ScarpineFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAM. SchubnellDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAS. SerranoInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainR. SharpThe Research School of Astronomy and Astrophysics, Australian National University , Canberra, ACT 2601, AustraliaE. SheldonBrookhaven National Laboratory , Bldg 510, Upton, NY 11973, USAM. SmithSchool of Physics and Astronomy, University of Southampton , Southampton SO17 1BJ, UKM. Soares-SantosDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAE. SuchytaComputer Science and Mathematics Division, Oak Ridge National Laboratory , Oak Ridge, TN 37831, USA
2021en
ABI
Аннотация
In this paper, we present and validate the galaxy sample used for the analysis of the baryon acoustic oscillation (BAO) signal in the Dark Energy Survey (DES) Y3 data. The definition is based on a colour and redshift-dependent magnitude cut optimized to select galaxies at redshifts higher than 0.5, while ensuring a high-quality determination. The sample covers ∼4100 deg2to a depth of i = 22.3 (AB) at 10σ. It contains 7031 993 galaxies in the redshift range from z = 0.6 to 1.1, with a mean effective redshift of 0.835. Redshifts are estimated with the machine learning algorithm dnf, and are validated using the VIPERS PDR2 sample. We find a mean redshift bias of zbias∼0.01 and a mean uncertainty, in units of 1 + z, of σ68∼0.03. We evaluate the galaxy population of the sample, showing it is mostly built upon Elliptical to Sbc types. Furthermore, we find a low level of stellar contamination of ≲4 per cent. We present the method used to mitigate the effect of spurious clustering coming from observing conditions and other large-scale systematics. We apply it to the BAO sample and calculate weights that are used to get a robust estimate of the galaxy clustering signal. This paper is one of a series dedicated to the analysis of the BAO signal in DES Y3. In the companion papers, we present the galaxy mock catalogues used to calibrate the analysis and the angular diameter distance constraints obtained through the fitting to the BAO scale.
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