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

Abstract

This paper describes the second data release (DR2) of the Beijing-Arizona Sky Survey (BASS). BASS is an imaging survey covering a 5400 deg 2 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.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1];  [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [4];  [1];  [5];  [1];  [6];  [3];  [1]; ORCiD logo [1]; ORCiD logo [7]; ORCiD logo [8];  [1] more »;  [2];  [6]; ORCiD logo [1];  [9];  [10];  [5];  [9]; ORCiD logo [11];  [3];  [1];  [1];  [6] « less
  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)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1480802
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Supplement Series (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal. Supplement Series (Online); Journal Volume: 237; Journal Issue: 2; Journal ID: ISSN 1538-4365
Publisher:
American Astronomical Society/IOP
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Zou, Hu, Zhang, Tianmeng, Zhou, Zhimin, Peng, Xiyan, Nie, Jundan, Zhou, Xu, Fan, Xiaohui, Jiang, Linhua, McGreer, Ian, Dey, Arjun, Fan, Dongwei, Findlay, Joseph R., Gao, Jinhua, Gu, Yizhou, Guo, Yucheng, He, Boliang, Jin, Junjie, Kong, Xu, Lang, Dustin, Lei, Fengjie, Lesser, Michael, Li, Feng, Ma, Jun, Meng, Xiaolei, Maxwell, Moe, Myers, Adam D., Rui, Liming, Schlegel, David, Sun, Fengwu, Wu, Hong, Wang, Jiali, and Yuan, Qirong. The Second Data Release of the Beijing–Arizona Sky Survey. United States: N. p., 2018. Web. doi:10.3847/1538-4365/aad502.
Zou, Hu, Zhang, Tianmeng, Zhou, Zhimin, Peng, Xiyan, Nie, Jundan, Zhou, Xu, Fan, Xiaohui, Jiang, Linhua, McGreer, Ian, Dey, Arjun, Fan, Dongwei, Findlay, Joseph R., Gao, Jinhua, Gu, Yizhou, Guo, Yucheng, He, Boliang, Jin, Junjie, Kong, Xu, Lang, Dustin, Lei, Fengjie, Lesser, Michael, Li, Feng, Ma, Jun, Meng, Xiaolei, Maxwell, Moe, Myers, Adam D., Rui, Liming, Schlegel, David, Sun, Fengwu, Wu, Hong, Wang, Jiali, & Yuan, Qirong. The Second Data Release of the Beijing–Arizona Sky Survey. United States. doi:10.3847/1538-4365/aad502.
Zou, Hu, Zhang, Tianmeng, Zhou, Zhimin, Peng, Xiyan, Nie, Jundan, Zhou, Xu, Fan, Xiaohui, Jiang, Linhua, McGreer, Ian, Dey, Arjun, Fan, Dongwei, Findlay, Joseph R., Gao, Jinhua, Gu, Yizhou, Guo, Yucheng, He, Boliang, Jin, Junjie, Kong, Xu, Lang, Dustin, Lei, Fengjie, Lesser, Michael, Li, Feng, Ma, Jun, Meng, Xiaolei, Maxwell, Moe, Myers, Adam D., Rui, Liming, Schlegel, David, Sun, Fengwu, Wu, Hong, Wang, Jiali, and Yuan, Qirong. Wed . "The Second Data Release of the Beijing–Arizona Sky Survey". United States. doi:10.3847/1538-4365/aad502. https://www.osti.gov/servlets/purl/1480802.
@article{osti_1480802,
title = {The Second Data Release of the Beijing–Arizona Sky Survey},
author = {Zou, Hu and Zhang, Tianmeng and Zhou, Zhimin and Peng, Xiyan and Nie, Jundan and Zhou, Xu and Fan, Xiaohui and Jiang, Linhua and McGreer, Ian and Dey, Arjun and Fan, Dongwei and Findlay, Joseph R. and Gao, Jinhua and Gu, Yizhou and Guo, Yucheng and He, Boliang and Jin, Junjie and Kong, Xu and Lang, Dustin and Lei, Fengjie and Lesser, Michael and Li, Feng and Ma, Jun and Meng, Xiaolei and Maxwell, Moe and Myers, Adam D. and Rui, Liming and Schlegel, David and Sun, Fengwu and Wu, Hong and Wang, Jiali and Yuan, Qirong},
abstractNote = {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.},
doi = {10.3847/1538-4365/aad502},
journal = {The Astrophysical Journal. Supplement Series (Online)},
number = 2,
volume = 237,
place = {United States},
year = {2018},
month = {8}
}

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