Findlay, Joseph R.
Myers, Adam D.
AffiliationUniv Arizona, Steward Observ
MetadataShow full item record
PublisherIOP PUBLISHING LTD
CitationHu Zou et al 2019 ApJS 245 4
RightsCopyright © 2019. The American Astronomical Society. All rights reserved.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractThe Beijing–Arizona Sky Survey (BASS) is a wide and deep imaging survey that covers a 5400 deg2 area in the northern Galactic cap with the 2.3 m Bok telescope using two filters (g and r bands). The Mosaic z-band Legacy Survey (MzLS) covers the same area in the z band with the 4 m Mayall telescope. These two surveys will be used for spectroscopic targeting by the Dark Energy Spectroscopic Instrument (DESI) in the northernmost portion of the DESI footprint. This paper describes the third data release (DR3) of BASS, which contains the photometric data from all BASS and MzLS observations from 2015 January until the completion of BASS in 2019 March. The median astrometric precision relative to Gaia positions is about 17 mas and the median photometric offset relative to the Pan-STARRS1 photometry is within 5 mmag. The median 5σ AB magnitude depths for point sources are 24.2, 23.6, and 23.0 mag for the g, r, and z bands, respectively. The photometric depth within the survey area is highly homogeneous, and the difference between the 20% and 80% depth is less than 0.3 mag. The DR3 data, including raw data, calibrated single-epoch images, single-epoch photometric catalogs, stacked images, and co-added photometric catalogs, are publicly accessible at http://batc.bao.ac.cn/BASS/doku.php?id=datarelease:home.
VersionFinal published version
SponsorsNational Basic Research Program of China (973 Program)National Basic Research Program of China [2015CB857004, 2017YFA0402600, 2014CB845704]; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China [11433005, 11673027, 11733007, 11320101002, 11421303, 11973038, 11733006]; Chinese Academy of SciencesChinese Academy of Sciences [114A11KYSB20160057]; Office of Science, Office of High Energy Physics of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH1123, DE-SC0019022]; Dark Energy Camera Legacy Survey (DECaLS; NOAO) [2014B-0404]; Beijing-Arizona Sky Survey (BASS; NOAO) [2015A-0801]; Mayall z-band Legacy Survey (MzLS; NOAO) [2016A-0453]; National Astronomical Observatories of China; Chinese Academy of Sciences (Strategic Priority Research Program "The Emergence of Cosmological Structures") [XDB09000000]; Special Fund for Astronomy from the Ministry of Finance; Chinese National Natural Science FoundationNational Natural Science Foundation of China ; National Aeronautics and Space AdministrationNational Aeronautics & Space Administration (NASA) [NNX08AR22G]; National Science FoundationNational Science Foundation (NSF) [AST-1238877]