publication . Article . Preprint . 2018

Dark Energy Survey Year 1 Results: Photometric Data Set for Cosmology

Drlica-Wagner, A; Sevilla-Noarbe, I; Rykoff, ES; Gruendl, RA; Yanny, B; Tucker, DL; Hoyle, B; Rosell, A Carnero; Bernstein, GM; Bechtol, K; ...
Open Access English
  • Published: 10 Sep 2018
  • Publisher: HAL CCSD
Abstract
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 zero-points, 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 $\sim 137$ million objects detected in co-added images covering $\sim 1800\,{\deg }^{2}$ in the DES gr...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Instrumentation and Methods for Astrophysics
free text keywords: surveys, techniques: image processing, techniques: photometric, cosmology: observations, catalogs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], catalogs, observations [cosmology], surveys, image processing [techniques], photometric [techniques], Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Funded by
EC| TESTDE
Project
TESTDE
Testing the Dark Energy Paradigm and Measuring Neutrino Mass with the Dark Energy Survey
  • Funder: European Commission (EC)
  • Project Code: 291329
  • Funding stream: FP7 | SP2 | ERC
,
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
,
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
114 references, page 1 of 8

40Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA 41Departamento de F sica Matematica, Instituto de F sica, Universidade de Sa~o Paulo, CP 66318, Sa~o Paulo, SP, 05314-970, Brazil

42Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA

43Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA

44Institucio Catalana de Recerca i Estudis Avancats, E-08010 Barcelona, Spain

45Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA

46Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, UK

47School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK

48Instituto de F sica Gleb Wataghin, Universidade Estadual de Campinas, 13083-859, Campinas, SP, Brazil

49Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831

50Institute for Astronomy, University of Edinburgh, Edinburgh EH9 3HJ, UK 3. Bad-Pixel Masking: Bad pixel masks were created

from Y1 processing (Figure 3; Diehl et al. 2014).

CCD61 failed on 7 November 2012 and data from

this CCD were not used in Y1. CCD2 failed on

30 November 2013 and data from this CCD were

only included for the early months of Y1.6 0.8 s t c e j bO0.6 f o n o itc0.4 a r F 0.2 7.4.3. Large Foreground Objects 1. The Large Magellanic Cloud (bit=16): The cen-

114 references, page 1 of 8
Abstract
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 zero-points, 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 $\sim 137$ million objects detected in co-added images covering $\sim 1800\,{\deg }^{2}$ in the DES gr...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Instrumentation and Methods for Astrophysics
free text keywords: surveys, techniques: image processing, techniques: photometric, cosmology: observations, catalogs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], catalogs, observations [cosmology], surveys, image processing [techniques], photometric [techniques], Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Funded by
EC| TESTDE
Project
TESTDE
Testing the Dark Energy Paradigm and Measuring Neutrino Mass with the Dark Energy Survey
  • Funder: European Commission (EC)
  • Project Code: 291329
  • Funding stream: FP7 | SP2 | ERC
,
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
,
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
114 references, page 1 of 8

40Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439, USA 41Departamento de F sica Matematica, Instituto de F sica, Universidade de Sa~o Paulo, CP 66318, Sa~o Paulo, SP, 05314-970, Brazil

42Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA

43Department of Astrophysical Sciences, Princeton University, Peyton Hall, Princeton, NJ 08544, USA

44Institucio Catalana de Recerca i Estudis Avancats, E-08010 Barcelona, Spain

45Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA

46Department of Physics and Astronomy, Pevensey Building, University of Sussex, Brighton, BN1 9QH, UK

47School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK

48Instituto de F sica Gleb Wataghin, Universidade Estadual de Campinas, 13083-859, Campinas, SP, Brazil

49Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831

50Institute for Astronomy, University of Edinburgh, Edinburgh EH9 3HJ, UK 3. Bad-Pixel Masking: Bad pixel masks were created

from Y1 processing (Figure 3; Diehl et al. 2014).

CCD61 failed on 7 November 2012 and data from

this CCD were not used in Y1. CCD2 failed on

30 November 2013 and data from this CCD were

only included for the early months of Y1.6 0.8 s t c e j bO0.6 f o n o itc0.4 a r F 0.2 7.4.3. Large Foreground Objects 1. The Large Magellanic Cloud (bit=16): The cen-

114 references, page 1 of 8
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