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Title: The Second 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. National Optical Astronomy Observatory (NOAO), Tuscon, AZ (United States)
  5. Univ. of Wyoming, Laramie, WY (United States)
  6. Nanjing Normal Univ. (China)
  7. Univ. of Science and Technology of China, Hefei (China)
  8. Univ. of Toronto, ON (Canada)
  9. Tsinghua Univ., Beijing (China)
  10. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  11. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
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This paper describes the second data release (DR2) of the Beijing-Arizona Sky Survey (BASS). BASS is an imaging survey covering a 5400 deg2 footprint in the g and r bands using the 2.3 m Bok telescope. DR2 includes the observations through 2017 July obtained by BASS and by the Mayall z-band Legacy Survey (MzLS), which used the 4 m Mayall telescope to observe the same footprint. BASS and MzLS have completed 72% and 76% of their observations. The two surveys will be served for the spectroscopic targeting of the upcoming Dark Energy Spectroscopic Instrument. Both BASS and MzLS data are reduced by the same pipeline. We have updated the basic data reduction and photometric calibrations in DR2. In particular, source detections are performed on stacked images, and photometric measurements are co-added from single-epoch images based on these sources. The median 5σ point-source depths after Galactic extinction corrections are 24.05, 23.61, and 23.10 mag for the g, r, and z bands, respectively. The DR2 data products include stacked images, co-added catalogs, and single-epoch images and catalogs. The BASS website (http://batc.bao.ac.cn/BASS/) provides detailed information and links to download the data.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1480802
Journal Information:
The Astrophysical Journal. Supplement Series (Online), Vol. 237, Issue 2; 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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Cited By (10)

Quasar lenses in the south: searches over the DES public footprint journal August 2019
Outlying Hα emitters in SDSS IV MaNGA journal February 2019
Overview of the DESI Legacy Imaging Surveys journal April 2019
Mass–Metallicity Relation and Fundamental Metallicity Relation of Metal-poor Star-forming Galaxies at 0.6 < Z < 0.9 from the eBOSS Survey journal December 2018
Exploring Reionization-era Quasars. III. Discovery of 16 Quasars at 6.4 ≲ z ≲ 6.9 with DESI Legacy Imaging Surveys and the UKIRT Hemisphere Survey and Quasar Luminosity Function at z ∼ 6.7 journal October 2019
Photometric Redshifts and Stellar Masses for Galaxies from the DESI Legacy Imaging Surveys journal May 2019
The Third Data Release of the Beijing–Arizona Sky Survey journal October 2019
Dragonfly Imaging of the Galaxy NGC 5907: A Different View of the Iconic Stellar Stream journal September 2019
Overview of the DESI Legacy Imaging Surveys text January 2018
Quasar Lenses in the South: searches over the DES public footprint text January 2018

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79 ASTRONOMY AND ASTROPHYSICS