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Title: The Dark Energy Survey: Data Release 1

Journal Article · · The Astrophysical Journal. Supplement Series (Online)
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© 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 deg 2 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 deg 2 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.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Contributing Organization:
DES Collaboration; NOAO Data Lab
Grant/Contract Number:
AC02-76SF00515; SC0012704; AC02-07CH11359; AC05-00OR22725; AC02-05CH11231
OSTI ID:
1490357
Alternate ID(s):
OSTI ID: 1426668; OSTI ID: 1488512; OSTI ID: 1489093; OSTI ID: 1503979; OSTI ID: 1526553
Report Number(s):
FERMILAB-PUB-17-603-AE-E; arXiv:1801.03181; BNL-209792-2018-JAAM
Journal Information:
The Astrophysical Journal. Supplement Series (Online), Vol. 239, Issue 2; ISSN 1538-4365
Publisher:
American Astronomical Society/IOPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 351 works
Citation information provided by
Web of Science

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conference August 2018
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Self-consistent redshift estimation using correlation functions without a spectroscopic reference sample text January 2018
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Quasar Lenses in the South: searches over the DES public footprint text January 2018
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On the relative bias of void tracers in the Dark Energy Survey text January 2018
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Quasar Accretion Disk Sizes from Continuum Reverberation Mapping in the DES Standard Star Fields text January 2018
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