The First Data Release of the Beijing-Arizona Sky Survey

Hu Zou, Tianmeng Zhang, Zhimin Zhou, Jundan Nie, Xiyan Peng, Xu Zhou, Linhua Jiang, Zheng Cai, Arjun Dey, Xiaohui Fan, Dongwei Fan, Yucheng Guo, Boliang He, Zhaoji Jiang, Dustin Lang, Michael Lesser, Zefeng Li, Jun Ma, Shude Mao, Ian McGreerDavid Schlegel, Yali Shao, Jiali Wang, Shu Wang, Jin Wu, Xiaohan Wu, Qian Yang, Minghao Yue

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The Beijing-Arizona Sky Survey (BASS) is a new wide-field legacy imaging survey in the northern Galactic cap using the 2.3 m Bok telescope. The survey will cover about 5400 deg2 in the g and r bands, and the expected 5σ depths (corrected for the Galactic extinction) in these two bands are g = 24.0 and r = 23.4 mag (AB magnitude). BASS started observations in 2015 January and had completed about 41% of the area as of 2016 July. The first data release contains calibrated images obtained in 2015 and 2016 and their corresponding single-epoch and co-added catalogs. The actual depths of the single-epoch images are g ∼ 23.4 and r ∼ 22.9 mag. The full depths of the three epochs are g ∼ 24.1 and r ∼ 23.5 mag.

Original languageEnglish (US)
Article number276
JournalAstronomical Journal
Issue number6
StatePublished - Jun 2017


  • surveys
  • techniques: image processing
  • techniques: photometric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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