publication . Other literature type . Article . 2018

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

Drlica-Wagner, A.; Sevilla-Noarbe, I.; Rykoff, E. S.; Gruendl, R. A.; Yanny, B.; Tucker, D. L.; Hoyle, B.; Rosell, A. Carnero; Bernstein, G. M.; Bechtol, K.; ...
Open Access
  • Published: 03 Apr 2018
  • Publisher: American Astronomical Society
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 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 deg$^2$ in the DES grizY filters. Th...
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free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Cosmology, COSMIC cancer database, Photometric redshift, Physics, Astrophysics, Photometry (optics), Dark energy, Limiting magnitude, Ancillary data, Galaxy
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