The Dark Energy Survey: Data Release 1
Top Cited Papers
- 26 November 2018
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal Supplement Series
- Vol. 239 (2), 18
- https://doi.org/10.3847/1538-4365/aae9f0
Abstract
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 InterAmerican Observatory in Chile. We release data from the DES wide-area survey covering similar to 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 mas. 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 mag. DES DR1 includes nearly 400 million distinct astronomical objects detected in similar to 10,000 co-add tiles of size 0.534 deg(2) produced from similar to 39,000 individual exposures. Benchmark galaxy and stellar samples contain similar to 310 million and similar to 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.Keywords
This publication has 52 references indexed in Scilit:
- Forward Global Photometric Calibration of the Dark Energy SurveyThe Astronomical Journal, 2017
- First data release of the Hyper Suprime-Cam Subaru Strategic ProgramPublications of the Astronomical Society of Japan, 2017
- Instrumental Response Model and Detrending for the Dark Energy CameraPublications of the Astronomical Society of the Pacific, 2017
- The Hyper Suprime-Cam SSP Survey: Overview and survey designPublications of the Astronomical Society of Japan, 2017
- Astrometric Calibration and Performance of the Dark Energy CameraPublications of the Astronomical Society of the Pacific, 2017
- Web-based visualization of very large scientific astronomy imageryAstronomy and Computing, 2015
- Astropy: A community Python package for astronomyAstronomy & Astrophysics, 2013
- THE SEVENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEYThe Astrophysical Journal Supplement Series, 2009
- MODTRAN4 radiative transfer modeling for atmospheric correctionPublished by SPIE-Intl Soc Optical Eng ,1999
- SExtractor: Software for source extractionAstronomy and Astrophysics Supplement Series, 1996