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Title: The Third Data Release of the Beijing–Arizona Sky Survey

Journal Article · · The Astrophysical Journal. Supplement Series (Online)
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  1. Chinese Academy of Sciences (CAS), Beijing (China)
  2. Univ. of Arizona, Tucson, AZ (United States)
  3. Peking Univ., Beijing (China)
  4. Tsinghua Univ., Beijing (China)
  5. Univ. of Science and Technology of China, Hefei (China)
  6. National Optical Astronomy Observatory, Tucson, AZ (United States)
  7. Univ. of Wyoming, Laramie, WY (United States)
  8. Nanjing Univ. (China)
  9. Univ. of Toronto, ON (Canada)
  10. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  11. Univ. of Arizona, Tucson, AZ (United States); Peking Univ., Beijing (China)
  12. Peking Univ., Beijing (China); Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
+ Show Author Affiliations

The Beijing–Arizona Sky Survey (BASS) is a wide and deep imaging survey that covers a 5400 deg2 area in the northern Galactic cap with the 2.3 m Bok telescope using two filters (g and r bands). The Mosaic z-band Legacy Survey (MzLS) covers the same area in the z band with the 4 m Mayall telescope. These two surveys will be used for spectroscopic targeting by the Dark Energy Spectroscopic Instrument (DESI) in the northernmost portion of the DESI footprint. This paper describes the third data release (DR3) of BASS, which contains the photometric data from all BASS and MzLS observations from 2015 January until the completion of BASS in 2019 March. The median astrometric precision relative to Gaia positions is about 17 mas and the median photometric offset relative to the Pan-STARRS1 photometry is within 5 mmag. The median 5σ AB magnitude depths for point sources are 24.2, 23.6, and 23.0 mag for the g, r, and z bands, respectively. The photometric depth within the survey area is highly homogeneous, and the difference between the 20% and 80% depth is less than 0.3 mag. The DR3 data, including raw data, calibrated single-epoch images, single-epoch photometric catalogs, stacked images, and co-added photometric catalogs, are publicly accessible at http://batc.bao.ac.cn/BASS/doku.php?id=datarelease:home

Research Organization:
Univ. of Wyoming, Laramie, WY (United States); Univ. of California, Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Basic Research Program of China; National Natural Science Foundation of China (NSFC); External Cooperation Program of Chinese Academy of Sciences
Grant/Contract Number:
SC0019022; AC02-05CH1123
OSTI ID:
1597090
Journal Information:
The Astrophysical Journal. Supplement Series (Online), Vol. 245, Issue 1; ISSN 1538-4365
Publisher:
American Astronomical Society/IOPCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Sky surveys
Astronomy data reduction
Observational astronomy
Catalogs