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The Dark Energy Survey: Data Release 1

  • Author(s): Abbott, TMC
  • Abdalla, FB
  • Allam, S
  • Amara, A
  • Annis, J
  • Asorey, J
  • Avila, S
  • Ballester, O
  • Banerji, M
  • Barkhouse, W
  • Baruah, L
  • Baumer, M
  • Bechtol, K
  • Becker, MR
  • Benoit-Lévy, A
  • Bernstein, GM
  • Bertin, E
  • Blazek, J
  • Bocquet, S
  • Brooks, D
  • Brout, D
  • Buckley-Geer, E
  • Burke, DL
  • Busti, V
  • Campisano, R
  • Cardiel-Sas, L
  • Rosell, AC
  • Kind, MC
  • Carretero, J
  • Castander, FJ
  • Cawthon, R
  • Chang, C
  • Chen, X
  • Conselice, C
  • Costa, G
  • Crocce, M
  • Cunha, CE
  • D'Andrea, CB
  • Costa, LND
  • Das, R
  • Daues, G
  • Davis, TM
  • Davis, C
  • Vicente, JD
  • Depoy, DL
  • Derose, J
  • Desai, S
  • Diehl, HT
  • Dietrich, JP
  • Dodelson, S
  • Doel, P
  • Drlica-Wagner, A
  • Eifler, TF
  • Elliott, AE
  • Evrard, AE
  • Farahi, A
  • Neto, AF
  • Fernandez, E
  • Finley, DA
  • Flaugher, B
  • Foley, RJ
  • Fosalba, P
  • Friedel, DN
  • Frieman, J
  • Garcia-Bellido, J
  • Gaztanaga, E
  • Gerdes, DW
  • Giannantonio, T
  • Gill, MSS
  • Glazebrook, K
  • Goldstein, DA
  • Gower, M
  • Gruen, D
  • Gruendl, RA
  • Gschwend, J
  • Gupta, RR
  • Gutierrez, G
  • Hamilton, S
  • Hartley, WG
  • Hinton, SR
  • Hislop, JM
  • Hollowood, D
  • Honscheid, K
  • Hoyle, B
  • Huterer, D
  • Jain, B
  • James, DJ
  • Jeltema, T
  • Johnson, MWG
  • Johnson, MD
  • Kacprzak, T
  • Kent, S
  • Khullar, G
  • Klein, M
  • Kovacs, A
  • Koziol, AMG
  • Krause, E
  • Kremin, A
  • Kron, R
  • Kuehn, K
  • et al.

Published Web Location

https://arxiv.org/pdf/1801.03181
No data is associated with this publication.
Abstract

© 2018. The American Astronomical Society. All rights reserved. We describe the first public data release of the Dark Energy Survey, DES DR1, consisting of reduced single-epoch images, co-added images, co-added source catalogs, and associated products and services assembled over the first 3 yr of DES science operations. DES DR1 is based on optical/near-infrared imaging from 345 distinct nights (2013 August to 2016 February) by the Dark Energy Camera mounted on the 4 m Blanco telescope at the Cerro Tololo Inter-American Observatory in Chile. We release data from the DES wide-area survey covering ∼5000 deg2 of the southern Galactic cap in five broad photometric bands, grizY. DES DR1 has a median delivered point-spread function of g = 1.12, r = 0.96, i = 0.88, z = 0.84, and Y = 0.″90 FWHM, a photometric precision of <1% in all bands, and an astrometric precision of 151 . The median co-added catalog depth for a 1.″95 diameter aperture at signal-to-noise ratio (S/N) = 10 is g = 24.33, r = 24.08, i = 23.44, z = 22.69, and Y = 21.44. DES DR1 includes nearly 400 million distinct astronomical objects detected in ∼10,000 co-add tiles of size 0.534 deg2 produced from ∼39,000 individual exposures. Benchmark galaxy and stellar samples contain ∼310 million and ∼80 million objects, respectively, following a basic object quality selection. These data are accessible through a range of interfaces, including query web clients, image cutout servers, jupyter notebooks, and an interactive co-add image visualization tool. DES DR1 constitutes the largest photometric data set to date at the achieved depth and photometric precision.

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