The Second Data Release of the Beijing-Arizona Sky Survey

Hu Zou; Tianmeng Zhang; Zhimin Zhou; Xiyan Peng; Jundan Nie; Xu Zhou; Xiaohui Fan; Linhua Jiang; Ian McGreer; Arjun Dey; Dongwei Fan; Joseph R. Findlay; Jinhua Gao; Yizhou Gu; Yucheng Guo; Boliang He; Junjie Jin; Xu Kong; Dustin Lang; Fengjie Lei; Michael Lesser; Feng Li; Jun Ma; Xiaolei Meng; Moe Maxwell; Adam D. Myers; Liming Rui; David Schlegel; Fengwu Sun; Hong Wu; Jiali Wang; Qirong Yuan

doi:10.3847/1538-4365/aad502

The Second Data Release of the Beijing-Arizona Sky Survey

Hu Zou, Tianmeng Zhang, Zhimin Zhou, Xiyan Peng, Jundan Nie, Xu Zhou, Xiaohui Fan, Linhua Jiang, Ian McGreer, Arjun Dey, Dongwei Fan, Joseph R. Findlay, Jinhua Gao, Yizhou Gu, Yucheng Guo, Boliang He, Junjie Jin, Xu Kong, Dustin Lang, Fengjie LeiMichael Lesser, Feng Li, Jun Ma, Xiaolei Meng, Moe Maxwell, Adam D. Myers, Liming Rui, David Schlegel, Fengwu Sun, Hong Wu, Jiali Wang, Qirong Yuan

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Abstract

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.

Original language	English (US)
Article number	37
Journal	Astrophysical Journal, Supplement Series
Volume	237
Issue number	2
DOIs	https://doi.org/10.3847/1538-4365/aad502
State	Published - Aug 2018

Keywords

surveys
techniques: image processing
techniques: photometric

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4365/aad502

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Zou, H., Zhang, T., Zhou, Z., Peng, X., Nie, J., Zhou, X., Fan, X., Jiang, L., McGreer, I., Dey, A., Fan, D., Findlay, J. R., Gao, J., Gu, Y., Guo, Y., He, B., Jin, J., Kong, X., Lang, D., ... Yuan, Q. (2018). The Second Data Release of the Beijing-Arizona Sky Survey. Astrophysical Journal, Supplement Series, 237(2), Article 37. https://doi.org/10.3847/1538-4365/aad502

Zou, H, Zhang, T, Zhou, Z, Peng, X, Nie, J, Zhou, X, Fan, X, Jiang, L, McGreer, I, Dey, A, Fan, D, Findlay, JR, Gao, J, Gu, Y, Guo, Y, He, B, Jin, J, Kong, X, Lang, D, Lei, F, Lesser, M, Li, F, Ma, J, Meng, X, Maxwell, M, Myers, AD, Rui, L, Schlegel, D, Sun, F, Wu, H, Wang, J & Yuan, Q 2018, 'The Second Data Release of the Beijing-Arizona Sky Survey', Astrophysical Journal, Supplement Series, vol. 237, no. 2, 37. https://doi.org/10.3847/1538-4365/aad502

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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 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.",

keywords = "surveys, techniques: image processing, techniques: photometric",

author = "Hu Zou and Tianmeng Zhang and Zhimin Zhou and Xiyan Peng and Jundan Nie and Xu Zhou and Xiaohui Fan and Linhua Jiang and Ian McGreer and Arjun Dey and Dongwei Fan and Findlay, {Joseph R.} and Jinhua Gao and Yizhou Gu and Yucheng Guo and Boliang He and Junjie Jin and Xu Kong and Dustin Lang and Fengjie Lei and Michael Lesser and Feng Li and Jun Ma and Xiaolei Meng and Moe Maxwell and Myers, {Adam D.} and Liming Rui and David Schlegel and Fengwu Sun and Hong Wu and Jiali Wang and Qirong Yuan",

year = "2018",

month = aug,

doi = "10.3847/1538-4365/aad502",

language = "English (US)",

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journal = "Astrophysical Journal, Supplement Series",

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AU - Zou, Hu

AU - Zhang, Tianmeng

AU - Zhou, Zhimin

AU - Peng, Xiyan

AU - Nie, Jundan

AU - Zhou, Xu

AU - Fan, Xiaohui

AU - Jiang, Linhua

AU - McGreer, Ian

AU - Dey, Arjun

AU - Fan, Dongwei

AU - Findlay, Joseph R.

AU - Gao, Jinhua

AU - Gu, Yizhou

AU - Guo, Yucheng

AU - He, Boliang

AU - Jin, Junjie

AU - Kong, Xu

AU - Lang, Dustin

AU - Lei, Fengjie

AU - Lesser, Michael

AU - Li, Feng

AU - Ma, Jun

AU - Meng, Xiaolei

AU - Maxwell, Moe

AU - Myers, Adam D.

AU - Rui, Liming

AU - Schlegel, David

AU - Sun, Fengwu

AU - Wu, Hong

AU - Wang, Jiali

AU - Yuan, Qirong

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KW - techniques: image processing

KW - techniques: photometric

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The Second Data Release of the Beijing-Arizona Sky Survey

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