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Journal article
THE SLOAN DIGITAL SKY SURVEY STRIPE 82 IMAGING DATA: DEPTH-OPTIMIZED CO-ADDS OVER 300 deg(2) IN FIVE FILTERS
The Astrophysical journal. Supplement series, v 213(1)
01 Jul 2014
Abstract
We present and release co-added images of the Sloan Digital Sky Survey (SDSS) Stripe 82. Stripe 82 covers an area of similar to 300 deg(2) on the celestial equator, and has been repeatedly scanned 70-90 times in the ugriz bands by the SDSS imaging survey. By making use of all available data in the SDSS archive, our co-added images are optimized for depth. Input single-epoch frames were properly processed and weighted based on seeing, sky transparency, and background noise before co-addition. The resultant products are co-added science images and their associated weight images that record relative weights at individual pixels. The depths of the co-adds, measured as the 5 sigma detection limits of the aperture (3".2 diameter) magnitudes for point sources, are roughly 23.9, 25.1, 24.6, 24.1, and 22.8 AB magnitudes in the five bands, respectively. They are 1.9-2.2 mag deeper than the best SDSS single-epoch data. The co-added images have good image quality, with an average point-spread function FWHM of similar to 1" in the r, i, and z bands. We also release object catalogs that were made with SExtractor. These co-added products have many potential uses for studies of galaxies, quasars, and Galactic structure. We further present and release near-IR J-band images that cover similar to 90 deg(2) of Stripe 82. These images were obtained using the NEWFIRM camera on the NOAO 4 m Mayall telescope, and have a depth of about 20.0-20.5 Vega magnitudes (also 5 sigma detection limits for point sources).
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- Title
- THE SLOAN DIGITAL SKY SURVEY STRIPE 82 IMAGING DATA: DEPTH-OPTIMIZED CO-ADDS OVER 300 deg(2) IN FIVE FILTERS
- Creators
- Linhua Jiang - Arizona State UniversityXiaohui Fan - Steward Health Care SystemFuyan Bian - Australian National UniversityIan D. McGreer - Steward Health Care SystemMichael A. Strauss - Princeton UniversityJames Annis - FermilabZoe Buck - Princeton UniversityRichard Green - Steward Health Care SystemJacqueline A. Hodge - University of California, DavisAdam D. Myers - University of WyomingAlireza Rafiee - Towson UniversityGordon Richards - Drexel University
- Publication Details
- The Astrophysical journal. Supplement series, v 213(1)
- Publisher
- Iop Publishing Ltd
- Number of pages
- 14
- Grant note
- Max Planck Society; Foundation CELLEX 1107682 / Division Of Astronomical Sciences; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) AST 08-06861; AST 11-07682 / NSF; National Science Foundation (NSF) U.S. Department of Energy; United States Department of Energy (DOE) National Aeronautics and Space Administration; National Aeronautics & Space Administration (NASA) 11003021; 11373003 / National Natural Science Foundation of China (NSFC) NAS 5-26555 / Association of Universities for Research in Astronomy, Inc., for NASA Higher Education Funding Council for England; UK Research & Innovation (UKRI); Higher Education Funding Council for England (HEFCE) Japanese Monbukagakusho; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Participating Institutions National Science Foundation; National Science Foundation (NSF) Alfred P. Sloan Foundation HST-HF-51291.01 / NASA through Hubble Fellowship; National Aeronautics & Space Administration (NASA) Princeton University Packard Fellowship for Science and Engineering
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000339233400012
- Scopus ID
- 2-s2.0-84904362300
- Other Identifier
- 991019169472104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics