skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The Dark Energy Survey Image Processing Pipeline

Abstract

The Dark Energy Survey (DES) is a five-year optical imaging campaign with the goal of understanding the origin of cosmic acceleration. DES performs a 5000 square degree survey of the southern sky in five optical bands (g,r,i,z,Y) to a depth of ~24th magnitude. Contemporaneously, DES performs a deep, time-domain survey in four optical bands (g,r,i,z) over 27 square degrees. DES exposures are processed nightly with an evolving data reduction pipeline and evaluated for image quality to determine if they need to be retaken. Difference imaging and transient source detection are also performed in the time domain component nightly. On a bi-annual basis, DES exposures are reprocessed with a refined pipeline and coadded to maximize imaging depth. Here we describe the DES image processing pipeline in support of DES science, as a reference for users of archival DES data, and as a guide for future astronomical surveys.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
DES
OSTI Identifier:
1422722
Report Number(s):
arXiv:1801.03177; FERMILAB-PUB-17-524-AE
Journal ID: ISSN 0004-6280; 1647428
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Publications of the Astronomical Society of the Pacific
Additional Journal Information:
Journal Volume: 130; Journal Issue: 989; Journal ID: ISSN 0004-6280
Publisher:
Astronomical Society of the Pacific
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Morganson, E., and et al. The Dark Energy Survey Image Processing Pipeline. United States: N. p., 2018. Web. doi:10.1088/1538-3873/aab4ef.
Morganson, E., & et al. The Dark Energy Survey Image Processing Pipeline. United States. doi:10.1088/1538-3873/aab4ef.
Morganson, E., and et al. Tue . "The Dark Energy Survey Image Processing Pipeline". United States. doi:10.1088/1538-3873/aab4ef. https://www.osti.gov/servlets/purl/1422722.
@article{osti_1422722,
title = {The Dark Energy Survey Image Processing Pipeline},
author = {Morganson, E. and et al.},
abstractNote = {The Dark Energy Survey (DES) is a five-year optical imaging campaign with the goal of understanding the origin of cosmic acceleration. DES performs a 5000 square degree survey of the southern sky in five optical bands (g,r,i,z,Y) to a depth of ~24th magnitude. Contemporaneously, DES performs a deep, time-domain survey in four optical bands (g,r,i,z) over 27 square degrees. DES exposures are processed nightly with an evolving data reduction pipeline and evaluated for image quality to determine if they need to be retaken. Difference imaging and transient source detection are also performed in the time domain component nightly. On a bi-annual basis, DES exposures are reprocessed with a refined pipeline and coadded to maximize imaging depth. Here we describe the DES image processing pipeline in support of DES science, as a reference for users of archival DES data, and as a guide for future astronomical surveys.},
doi = {10.1088/1538-3873/aab4ef},
journal = {Publications of the Astronomical Society of the Pacific},
issn = {0004-6280},
number = 989,
volume = 130,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:

Figures / Tables:

Figure 1 Figure 1: The DES g, r, i, z and Y Standard Bandpasses. These curves include atmospheric transmission and instrumental response. Details can be found in Burke et al. (2018).

Save / Share: