Dark energy survey year 1 results: Photometric data set for cosmology

作     者：Drlica-Wagner, A. Sevilla-Noarbe, I. Rykoff, E.S. Gruendl, R.A. Yanny, B. Tucker, D.L. Hoyle, B. Carnero Rosell, A. Bernstein, G.M. Bechtol, K. Becker, M.R. Benoit-Lévy, A. Bertin, E. Carrasco Kind, M. Davis, C. de Vicente, J. Diehl, H.T. Gruen, D. Hartley, W.G. Leistedt, B. Li, T.S. Marshall, J.L. Neilsen, E. Rau, M.M. Sheldon, E. Smith, J.A. Troxel, M.A. Wyatt, S. Zhang, Y. Abbott, T.M.C. Abdalla, F.B. Allam, S. Banerji, M. Brooks, D. Buckley-Geer, E. Burke, D.L. Capozzi, D. Carretero, J. Cunha, C.E. D'Andrea, C.B. da Costa, L.N. DePoy, D.L. Desai, S. Dietrich, J.P. Doel, P. Evrard, A.E. Fausti Neto, A. Flaugher, B. Fosalba, P. Frieman, J. García-Bellido, J. Gerdes, D.W. Giannantonio, T. Gschwend, J. Gutierrez, G. Honscheid, K. James, D.J. Jeltema, T. Kuehn, K. Kuhlmann, S. Kuropatkin, N. Lahav, O. Lima, M. H., Lin M.A.G., Maia P., Martini R.G., McMahon P., Melchior F., Menanteau R., Miquel R.C., Nichol R.L.C., Ogando A.A., Plazas A.K., Romer A., Roodman E., Sanchez V., Scarpine R., Schindler M., Schubnell M., Smith R.C., Smith M., Soares-Santos F., Sobreira E., Suchyta G., Tarle V., Vikram A.R., Walker R.H., Wechsler J., Zuntz 

作者机构：Fermi National Accelerator Laboratory P. O. Box 500 BataviaIL60510 United States  Madrid Spain Kavli Institute for Particle Astrophysics & Cosmology Stanford University P. O. Box 2450 StanfordCA94305 United States SLAC National Accelerator Laboratory Menlo ParkCA94025 United States Department of Astronomy University of Illinois 1002 W. Green Street UrbanaIL61801 United States National Center for Supercomputing Applications 1205 West Clark St. UrbanaIL61801 United States Universitäts-Sternwarte Fakultät für Physik Ludwig-Maximilians Universität München Scheinerstr. 1 München81679 Germany Laboratório Interinstitucional de e-Astronomia - LIneA Rua Gal. José Cristino 77 Rio de Janeiro RJ20921-400 Brazil Observatório Nacional Rua Gal. José Cristino 77 Rio de Janeiro RJ20921-400 Brazil Department of Physics and Astronomy University of Pennsylvania PhiladelphiaPA19104 United States LSST 933 North Cherry Avenue TucsonAZ85721 United States Department of Physics Stanford University 382 Via Pueblo Mall StanfordCA94305 United States CNRS UMR 7095 Institut d'Astrophysique de Paris ParisF-75014 France Department of Physics & Astronomy University College London Gower Street LondonWC1E 6BT United Kingdom Sorbonne Universités UPMC Univ Paris 06 UMR 7095 Institut d'Astrophysique de Paris ParisF-75014 France Department of Physics ETH Zurich Wolfgang-Pauli-Strasse 16 ZurichCH-8093 Switzerland New York University CCPP New YorkNY10003 United States George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy Department of Physics and Astronomy Texas A&M University College StationTX77843 United States Faculty of Physics Ludwig-Maximilians-Universität Scheinerstr. 1 Munich81679 Germany Brookhaven National Laboratory Bldg 510 UptonNY11973 United States Austin Peay State University Dept. Physics-Astronomy P.O. Box 4608 ClarksvilleTN37044 United States Center for Cosmology and Astro-Particle Physics Ohio State University ColumbusOH43210 United States Department of Physics Ohio State University ColumbusOH43210 United States Cerro Tololo Inter-American Observatory National Optical Astronomy Observatory Casilla 603 La Serena Chile Department of Physics and Electronics Rhodes University PO Box 94 Grahamstown6140 South Africa Institute of Astronomy University of Cambridge Madingley Road CambridgeCB3 0HA United Kingdom Kavli Institute for Cosmology University of Cambridge Madingley Road CambridgeCB3 0HA United Kingdom Institute of Cosmology & Gravitation University of Portsmouth PortsmouthPO1 3FX United Kingdom 08193 Spain Department of Physics IIT Hyderabad Kandi Telangana502285 India Excellence Cluster Universe Boltzmannstr. 2 Garching85748 Germany Department of Astronomy University of Michigan Ann ArborMI48109 United States Department of Physics University of Michigan Ann ArborMI48109 United States Institut de Ciències de l'Espai IEEC-CSIC Campus UAB Carrer de Can Magrans s/n Bellaterra Barcelona08193 Spain Kavli Institute for Cosmological Physics University of Chicago ChicagoIL60637 United States Instituto de Fisica Teorica UAM CSIC Universidad Autonoma de Madrid Madrid28049 Spain Astronomy Department University of Washington Box 351580 SeattleWA98195 United States Santa Cruz Institute for Particle Physics Santa CruzCA95064 United States Australian Astronomical Observatory North RydeNSW2113 Australia Argonne National Laboratory 9700 South Cass Avenue LemontIL60439 United States Departamento de Física Matemática Instituto de Física Universidade de São Paulo CP 66318 São Paulo SP05314-970 Brazil Department of Astronomy Ohio State University ColumbusOH43210 United States Department of Astrophysical Sciences Princeton University Peyton Hall PrincetonNJ08544 United States Institució Catalana de Recerca i Estudis Avançats BarcelonaE-08010 Spain Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Dr. PasadenaCA91109 United States Department of Physics and Astronomy Pevensey Building University of Sussex BrightonBN1 9QH United Kingdom School of Physics and Astronomy University of Southampton SouthamptonSO17 1BJ United Kingdom Instituto de Física Gleb Wataghin Universidade Estadual de Campinas Campinas SP13083-859 Brazil Computer Science and Mathematics Division Oak Ridge National Laboratory Oak RidgeTN37831 United States Institute for Astronomy University of Edinburgh EdinburghEH9 3HJ United Kingdom 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2017年

核心收录：

主　　题：Surveys 

摘      要：We describe the creation, content, and validation of the Dark Energy Survey (DES) internal year-one cosmology data set, Y1A1 GOLD, in support of upcoming cosmological analyses. The Y1A1 GOLD data set is assembled from multiple epochs of DES imaging and consists of calibrated photometric zeropoints, object catalogs, and ancillary data products-e.g., maps of survey depth and observing conditions, star-galaxy classification, and photometric redshift estimates-that are necessary for accurate cosmological analyses. The Y1A1 GOLD wide-area object catalog consists of ∼ 137 million objects detected in coadded images covering ∼ 1800 deg2 in the DES grizY filters. The 10σ limiting magnitude for galaxies is g = 23.4, r = 23.2, i = 22.5, z = 21.8, and Y = 20.1. Photometric calibration of Y1A1 GOLD was performed by combining nightly zeropoint solutions with stellar locus regression, and the absolute calibration accuracy is better than 2% over the survey area. DES Y1A1 GOLD is the largest photometric data set at the achieved depth to date, enabling precise measurements of cosmic acceleration at z. 1. Copyright © 2017, The Authors. All rights reserved.