@article{d6db75209e774708b964645f2b3bca67,
title = "Astrometric Calibration of the Beijing-Arizona Sky Survey",
abstract = "We present the astrometric calibration of the Beijing-Arizona Sky Survey (BASS). The BASS astrometry was tied to the International Celestial Reference Frame via the Gaia Data Release 2 reference catalog. For effects that were stable throughout the BASS observations, including differential chromatic refraction and the low charge transfer efficiency of the CCD, we corrected for these effects at the raw image coordinates. Fourth-order polynomial intermediate longitudinal and latitudinal corrections were used to remove optical distortions. The comparison with the Gaia catalog shows that the systematic errors, depending on color or magnitude, are less than 2 milliarcseconds (mas). The position systematic error is estimated to be about −0.01 ± 0.7 mas in the region between 30° and 60° of decl. and up to −0.07 ± 0.9 mas in the region north of decl. 60°.",
author = "Xiyan Peng and Zhaoxiang Qi and Tianmeng Zhang and Zhenyu Wu and Zhimin Zhou and Jundan Nie and Hu Zou and Xiaohui Fan and Linhua Jiang and Ian McGreer and Jinyi Yang and Arjun Dey and Jun Ma and Jiali Wang and David Schlegel and Xu Zhou",
note = "Funding Information: The BASS is a collaborative program between the National Astronomical Observatories of Chinese Academy of Science and Steward Observatory of the University of Arizona. BASS is a key project of the Telescope Access Program (TAP), which has been funded by the National Astronomical Observatories of China, the Chinese Academy of Sciences (the Strategic Priority Research Program” The Emergence of Cosmological Structures” Grant # XDB09000000), and the Special Fund for Astronomy from the Ministry of Finance. The BASS is also supported by the External Cooperation Program of the Chinese Academy of Sciences (Grant # 114A11KYSB20160057) and the Chinese National Natural Science Foundation (Grant # 11433005). This work is supported by the National Natural Science Foundation of China (NSFC; grant Nos. 11733007, 11673027, 11873053, 12073035, 12120101003,12173069, and 11703065), the National Key R&D Program of China No. 2019YFA0405501, and Beijing Municipal Natural Science Foundation, grant No. 1222028. This work is also supported by the Youth Innovation Promotion Association CAS with Certificate Number 2022259, the grants from the Natural Science Foundation of Shanghai through grant 21ZR1474100. We acknowledge the science research grants from the China Manned Space Project with NO.CMS-CSST-2021-A12, NO.CMS-CSST-2021-B10, and NO.CMS-CSST-2021-B04. Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",
year = "2023",
month = apr,
day = "1",
doi = "10.3847/1538-3881/acbc78",
language = "English (US)",
volume = "165",
journal = "Astronomical Journal",
issn = "0004-6256",
publisher = "IOP Publishing Ltd.",
number = "4",
}