Dark Energy Survey Year 3 Results: Deep Field Optical + Near-Infrared Images and Catalogue
W G HartleyDepartment of Astronomy, University of Geneva , ch. d’Ecogia 16, CH-1290 Versoix, SwitzerlandA. ChoiCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAA. AmonKavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University , Stanford, CA 94305, USAR. A. GruendlDepartment of Astronomy, University of Illinois at Urbana-Champaign , 1002 W. Green Street, Urbana, IL 61801, USAE. SheldonBrookhaven National Laboratory , Bldg 510, Upton, NY 11973, USAI. HarrisonDepartment of Physics, University of Oxford , Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UKG. M. BernsteinDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAI. Sevilla-NoarbeCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , Madrid, SpainB. YannyFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAK. EckertDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAH. T. DiehlFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAA. AlarconArgonne National Laboratory , 9700 South Cass Avenue, Lemont, IL 60439, USAM. BanerjiKavli Institute for Cosmology, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UKK. BechtolPhysics Department, University of Wisconsin–Madison , 2320 Chamberlin Hall, 1150 University Avenue Madison, WI 53706-1390, USARomain BuchsSLAC National Accelerator Laboratory , Menlo Park, CA 94025, USASarah CantuTexas A&M UniversityChristopher J. ConseliceJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester, M13 9PL, UKJ. CorderoJodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester, M13 9PL, UKC. DavisKavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University , Stanford, CA 94305, USAT. M. DavisSchool of Mathematics and Physics, University of Queensland , Brisbane, QLD 4072, AustraliaScott DodelsonDepartment of Physics, Carnegie Mellon University , Pittsburgh, Pennsylvania 15312, USAA. Drlica-WagnerFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAS. EverettA. FertéJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr., Pasadena, CA 91109, USAD. GruenDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305, USAK. HonscheidCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAMike JarvisDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAM. D. JohnsonNational Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801, USANickolas KokronDepartment of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA 94305, USAN. MacCrannDepartment of Applied Mathematics and Theoretical Physics, University of Cambridge , Cambridge CB3 0WA, UKJ. MylesKavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University , Stanford, CA 94305, USAAndrew B. PaceDepartment of Physics, Carnegie Mellon University , Pittsburgh, Pennsylvania 15312, USAA. PalmeseKavli Institute for Cosmological Physics, University of Chicago , Chicago, IL 60637, USAF. Paz-ChinchónNational Center for Supercomputing Applications , 1205 West Clark St, Urbana, IL 61801, USAM. E. S. PereiraDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAPlazas, A. A.Department of Astrophysical Sciences, Princeton University , Peyton Hall, Princeton, NJ 08544, USAJ. PratDepartment of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637, USAM. Rodríguez-MonroyCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , Madrid, SpainE. S. RykoffKavli Institute for Particle Astrophysics & Cosmology, PO Box 2450, Stanford University , Stanford, CA 94305, USAS. SamuroffDepartment of Physics, Carnegie Mellon University , Pittsburgh, Pennsylvania 15312, USAC. SánchezDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAL F SeccoDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAF. TarsitanoDepartment of Physics, ETH Zurich , Wolfgang-Pauli-Strasse 16, CH-8093 Zurich, SwitzerlandAmy S. K. TongDepartment of Physics, Duke University Durham , NC 27708, USAM. A. TroxelDepartment of Physics, Duke University Durham , NC 27708, USAZ. VasquezDepartment of Physics, Carnegie Mellon University , Pittsburgh, Pennsylvania 15312, USAK WangDepartment of Physics, Duke University Durham , NC 27708, USAConghao ZhouDepartment of Physics, Duke University Durham , NC 27708, USAT. M. C. AbbottCerro Tololo Inter-American Observatory, NSF’s National Optical-Infrared Astronomy Research Laboratory , Casilla 603, La Serena, ChileM. AguenaDepartamento de Física Matemática, Instituto de Física, Universidade de São Paulo , CP 66318, São Paulo, SP 05314-970, BrazilS. AllamFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAJ. AnnisFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USADavid BaconInstitute of Cosmology and Gravitation, University of Portsmouth , Portsmouth PO1 3FX, UKE. BertinSorbonne Universités, UPMC Univ Paris 06, UMR 7095, Institut d’Astrophysique de Paris , F-75014 Paris, FranceS BhargavaDepartment of Physics and Astronomy, Pevensey Building, University of Sussex , Brighton BN1 9QH, UKDavid BrooksDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT, UKD. L. BurkeStanford UniversityA. Carnero RosellInstituto de Astrofisica de Canarias , E-38205 La Laguna, Tenerife, SpainM. Carrasco KindNational 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, 08193 Bellaterra, Barcelona, SpainF. J. CastanderInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainM. CostanziInstitute for Fundamental Physics of the Universe , Via Beirut 2, I-34014 Trieste, ItalyM. CrocceInstitute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n , E-08193 Barcelona, SpainL. N. da CostaLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilJ. De VicenteCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) , Madrid, SpainJoseph DeRoseDepartment of Astronomy, University of California , Berkeley, 501 Campbell Hall, Berkeley, CA 94720, USAS. DesaiDepartment of Physics, IIT Hyderabad , Kandi, Telangana 502285, IndiaJ. P. DietrichFaculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr 1, D-81679 Munich, GermanyT. F. EiflerJet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Dr., Pasadena, CA 91109, USAJ. Elvin-PooleCenter for Cosmology and Astro-Particle Physics, The Ohio State University , Columbus, OH 43210, USAI. FerreroInstitute of Theoretical Astrophysics, University of Oslo . PO Box 1029 Blindern, NO-0315 Oslo, NorwayB. FlaugherFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAP. FosalbaInstitute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Can Magrans, s/n , E-08193 Barcelona, SpainJ. García-BellidoInstituto de Fisica Teorica UAM/CSIC, Universidad Autonoma de Madrid , E-28049 Madrid, SpainE. GaztañagaInstitut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainD. W. GerdesDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAJ. GschwendLaboratório Interinstitucional de e-Astronomia - LIneA , 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, D. L.Dragan HutererDepartment of Physics, University of Michigan , Ann Arbor, MI 48109, USAD. J. JamesCenter for Astrophysics | Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USAS. KentFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAE. KrauseDepartment of Astronomy/Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USAK. KuehnAustralian Astronomical Optics, Macquarie University , North Ryde, NSW 2113, AustraliaN. KuropatkinFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAO. LahavDepartment of Physics & Astronomy, University College London , Gower Street, London WC1E 6BT, UKH. LinFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAM. A. G. MaiaLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilM. MarchDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USAJ. 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, USAPaul 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, USAF. MenanteauNational Center for Supercomputing Applications , 1205 West Clark St, 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, GermanyR. MorganPhysics Department, University of Wisconsin–Madison , 2320 Chamberlin Hall, 1150 University Avenue Madison, WI 53706-1390, USAEric H. NeilsenFermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USAR. L. C. OgandoLaboratório Interinstitucional de e-Astronomia - LIneA , Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, BrazilShivam PandeyDepartment of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USA
2020en
ABI
Annotatsiya
We describe the Dark Energy Survey (DES) Deep Fields, a set of images and associated multi-wavelength catalogue ($ugrizJHKs$) built from Dark Energy Camera (DECam) and Visible and Infrared Survey Telescope for Astronomy (VISTA) data. The DES Deep Fields comprise 11 fields (10 DES supernova fields plus COSMOS), with a total area of $\sim30~$ square degrees in $ugriz$ bands and reaching a maximum $i$-band depth of 26.75 (AB, $10\sigma$, 2 arcsec). We present a catalogue for the DES 3-year cosmology analysis of those four fields with full 8-band coverage, totalling $5.88~$ sq. deg. after masking. Numbering $2.8~$million objects ($1.6~$million post masking), our catalogue is drawn from images coadded to consistent depths of $r=25.7, i=25, z=24.3$ mag. We use a new model-fitting code, built upon established methods, to deblend sources and ensure consistent colours across the $u$-band to $Ks$-band wavelength range. We further detail the tight control we maintain over the point-spread function modelling required for the model fitting, astrometry and consistency of photometry between the four fields. The catalogue allows us to perform a careful star-galaxy separation and produces excellent photometric redshift performance (${\rm NMAD} = 0.023$ at $i<23$). The Deep-Fields catalogue will be made available as part of the cosmology data products release, following the completion of the DES 3-year weak lensing and galaxy clustering cosmology work.
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