Dark Energy Survey Year 3 Results: Photometric Data Set for Cosmology
I. Sevilla-NoarbeCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainK. BechtolPhysics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390, USAM. Carrasco KindDepartment of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USAA. Carnero RosellCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainM. R. BeckerHEP Division, Argonne National Laboratory, Lemont, IL 60439, USAA. Drlica-WagnerDepartment of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USAR. A. GruendlDepartment of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USAE. S. RykoffSLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAE. SheldonBrookhaven National Laboratory, Bldg 510, Upton, NY 11973, USAB. YannyFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAA. AlarconInstitute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, SpainS. AllamFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAA. AmonKavli Institute for Particle Astrophysics & Cosmology, P.O. Box 2450, Stanford University, Stanford, CA 94305, USAA. Benoit-LévyDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UKG. M. BernsteinDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAE. BertinSorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d'Astrophysique de Paris, F-75014, Paris, FranceD. L. BurkeKavli Institute for Particle Astrophysics & Cosmology, P.O. Box 2450, Stanford University, Stanford, CA 94305, USAJ. CarreteroPort d'Informació Científica (PIC), Campus UAB, C. Albareda s/n, E-08193 Bellaterra (Barcelona), SpainA. ChoiCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USAH. T. DiehlFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAS. EverettB. FlaugherFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAE. GaztañagaInstitute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, SpainJ. GschwendLaboratório Interinstitucional de e-Astronomia—LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilI. HarrisonJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UKW. G. HartleyDépartement de Physique Théorique and Center for Astroparticle Physics, Université de Genève, 24 quai Ernest Ansermet, CH-1211 Geneva, SwitzerlandB. HoyleUniversitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstr. 1, D-81679 München, GermanyMike JarvisDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAM. D. JohnsonNational Center for Supercomputing Applications, 1205 West Clark Street, Urbana, IL 61801, USAR. KeßlerDepartment of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USAR. KronKavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USAN. KuropatkinFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USABoris LeistedtNew York University, CCPP, New York, NY 10003, USAT. S. LiDepartment of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USAF. MenanteauNational Center for Supercomputing Applications, 1205 West Clark Street, Urbana, IL 61801, USAE. MorgansonNational Center for Supercomputing Applications, 1205 West Clark Street, Urbana, IL 61801, USAR. L. C. OgandoObservatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilA. PalmeseFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAF. Paz-ChinchónNational Center for Supercomputing Applications, 1205 West Clark Street, Urbana, IL 61801, USAA. PieresLaboratório Interinstitucional de e-Astronomia—LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilC. PondNational Center for Supercomputing Applications, 1205 West Clark Street, Urbana, IL 61801, USAM. Rodríguez-MonroyCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainJ. A. SmithAustin Peay State University, Dept. Physics, Engineering and Astronomy, P.O. Box 4608 Clarksville, TN 37044, USAK. M. StringerGeorge 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, USAM. A. TroxelDepartment of Physics, Duke University, Durham, NC 27708, USAD. L. TuckerFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAJ. De VicenteCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), E-28040 Madrid, SpainW. C. WesterFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAYun-Hao ZhangFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, 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, BrazilJ. AnnisFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAS. ÀvilaInstituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, SpainS BhargavaDepartment of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, UKSarah BridleJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UKDavid BrooksDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UKDillon BroutCenter for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAF. J. CastanderInstitute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n, E-08193 Barcelona, SpainR. CawthonPhysics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390, USAC. ChangDepartment of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, 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, ItalyM. CrocceInstitut d'Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, SpainL. 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, IndiaJ. P. DietrichFaculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, GermanyP. DoelDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UKK. EckertDepartment of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USAA. E. EvrardDepartment of Astronomy, University of Michigan, Ann Arbor, MI 48109, USAI. FerreroInstitute of Theoretical Astrophysics, University of Oslo.P.O. Box 1029 Blindern, NO-0315 Oslo, NorwayP. FosalbaInstitut d'Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, SpainJ. García-BellidoInstituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid, E-28049 Madrid, SpainD. W. GerdesDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, USAT. GiannantonioKavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UKD. GruenSLAC National Accelerator Laboratory, Menlo Park, CA 94025, USAG. GutiérrezFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAS. R. HintonSchool of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, AustraliaD. L. HollowoodK. HonscheidCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USAEric HuffJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USADragan HutererDepartment of Physics, University of Michigan, Ann Arbor, MI 48109, USAD. J. JamesCenter for Astrophysics ∣ Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAT. JeltemaK. KuehnMacquarie UniversityO. LahavDepartment of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UKC. LidmanCentre for Gravitational Astrophysics, College of Science, The Australian National University, ACT 2601, AustraliaM. LimaLaboratório Interinstitucional de e-Astronomia—LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilH. LinFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAM. A. G. MaiaObservatório Nacional, Rua Gal. José Cristino 77, Rio de Janeiro, RJ—20921-400, BrazilJ. L. MarshallTexas A&M UniversityPaul MartiniCenter for Cosmology and Astro-Particle Physics, The Ohio State University, Columbus, OH 43210, USAP. MelchiorDepartment of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USAR. MiquelInstitut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), SpainJ. J. MohrFaculty of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, D-81679 Munich, GermanyR. MorganPhysics Department, 2320 Chamberlin Hall, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390, USAEric H. NeilsenFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USAA. A. PlazasDepartment of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USAA. K. RomerDepartment of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, UK
2021en
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Abstract We describe the Dark Energy Survey (DES) photometric data set assembled from the first three years of science operations to support DES Year 3 cosmologic analyses, and provide usage notes aimed at the broad astrophysics community. Y3 GOLD improves on previous releases from DES, Y1 GOLD , and Data Release 1 (DES DR1), presenting an expanded and curated data set that incorporates algorithmic developments in image detrending and processing, photometric calibration, and object classification. Y3 GOLD comprises nearly 5000 deg 2 of grizY imaging in the south Galactic cap, including nearly 390 million objects, with depth reaching a signal-to-noise ratio ∼10 for extended objects up to i AB ∼ 23.0, and top-of-the-atmosphere photometric uniformity <3 mmag. Compared to DR1, photometric residuals with respect to Gaia are reduced by 50%, and per-object chromatic corrections are introduced. Y3 GOLD augments DES DR1 with simultaneous fits to multi-epoch photometry for more robust galactic color measurements and corresponding photometric redshift estimates. Y3 GOLD features improved morphological star–galaxy classification with efficiency >98% and purity >99% for galaxies with 19 < i AB < 22.5. Additionally, it includes per-object quality information, and accompanying maps of the footprint coverage, masked regions, imaging depth, survey conditions, and astrophysical foregrounds that are used to select the cosmologic analysis samples.
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