The Second Data Release of the Beijing-Arizona Sky Survey

被引：18

作者：

Zou, Hu ^{[1
]}

Zhang, Tianmeng ^{[1
,2
]}

Zhou, Zhimin ^{[1
]}

Peng, Xiyan ^{[1
]}

Nie, Jundan ^{[1
]}

Zhou, Xu ^{[1
]}

Fan, Xiaohui ^{[3
]}

Jiang, Linhua ^{[4
]}

McGreer, Ian ^{[3
]}

Dey, Arjun ^{[5
]}

Fan, Dongwei ^{[1
]}

Findlay, Joseph R. ^{[6
]}

Gao, Jinhua ^{[1
]}

Gu, Yizhou ^{[7
]}

Guo, Yucheng ^{[4
,8
]}

He, Boliang ^{[1
]}

Jin, Junjie ^{[1
]}

Kong, Xu ^{[9
]}

Lang, Dustin ^{[10
]}

Lei, Fengjie ^{[1
]}

Lesser, Michael ^{[3
]}

Li, Feng ^{[7
]}

Ma, Jun ^{[1
,2
]}

Meng, Xiaolei ^{[11
,12
]}

Maxwell, Moe ^{[13
]}

Myers, Adam D. ^{[6
]}

Rui, Liming ^{[11
,12
]}

Schlegel, David ^{[14
]}

Sun, Fengwu ^{[4
,8
]}

Wu, Hong ^{[1
]}

Wang, Jiali ^{[1
]}

Yuan, Qirong ^{[7
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China

[2] Univ Chinese Acad Sci, Coll Astron & Space Sci, Beijing 100049, Peoples R China

[3] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[4] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China

[5] Natl Opt Astron Observ, Tucson, AZ 85719 USA

[6] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA

[7] Nanjing Normal Univ, Dept Phys, WenYuan Rd 1, Nanjing 210046, Jiangsu, Peoples R China

[8] Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China

[9] Univ Sci & Technol China, Dept Astron, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China

[10] Univ Toronto, David Dunlap Inst, Toronto, ON, Canada

[11] Tsinghua Univ, Dept Phys, Beijing 100086, Peoples R China

[12] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100086, Peoples R China

[13] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[14] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2018年 / 237卷 / 02期

基金：

美国国家航空航天局; 美国国家科学基金会; 美国安德鲁·梅隆基金会;

关键词：

surveys; techniques: image processing; techniques: photometric; SEXTRACTOR; EVOLUTION;

D O I：

10.3847/1538-4365/aad502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 5 sigma 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.

引用

页数：15

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