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The Stellar Abundances and Galactic Evolution Survey (SAGES) -- -- I. General Description and the First Data Release (DR1)

Zhou FanCAS Key Laboratory of Optical Astronomy , National Astronomical Observatories , Chinese Academy of Sciences , Beijing 100101 , ChinaGang ZhaoUniversity of Chinese Academy of SciencesWei WangNational Astronomical ObservatoriesJie ZhengNational Astronomical ObservatoriesJingkun ZhaoCAS Key Laboratory of Optical Astronomy , National Astronomical Observatories , Chinese Academy of Sciences , Beijing 100101 , ChinaChun LiNational Astronomical ObservatoriesYuqin ChenCAS Key Laboratory of Optical Astronomy , National Astronomical Observatories , Chinese Academy of Sciences , Beijing 100101 , ChinaHaibo YuanDepartment of Astronomy , Beijing Normal University , Beijing 100875 , ChinaHaining LiNational Astronomical ObservatoriesKefeng TanCAS Key Laboratory of Optical Astronomy , National Astronomical Observatories , Chinese Academy of Sciences , Beijing 100101 , ChinaYihan SongNational Astronomical ObservatoriesFang ZuoCAS Key Laboratory of Optical Astronomy , National Astronomical Observatories , Chinese Academy of Sciences , Beijing 100101 , ChinaYang HuangUniversity of Chinese Academy of SciencesA-Li LuoNational Astronomical ObservatoriesAli EsamdinXinjiang Astronomical Observatory , Urumqi , Xinjiang 830011 , ChinaLu MaXinjiang Astronomical Observatory , Urumqi , Xinjiang 830011 , ChinaBin LiKey Laboratory of Planetary Sciences , Purple Mountain Observatory , CAS , Nanjing 210023Nan SongChina Science and Technology Museum , Beijing , 100101 , ChinaFrank GruppMax Planck Institute for extraterrestrial Physics , 85748 Garching , GermanyHaibin ZhaoKey Laboratory of Planetary Sciences , Purple Mountain Observatory , CAS , Nanjing 210023Sh. A. EhgamberdievNational University of Uzbekistan , Tashkent , UzbekistanО. БурхоновUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanGuojie FengXinjiang Astronomical Observatory , Urumqi , Xinjiang 830011 , ChinaChunhai BaiXinjiang Astronomical Observatory , Urumqi , Xinjiang 830011 , ChinaXuan ZhangXinjiang Astronomical Observatory , Urumqi , Xinjiang 830011 , ChinaHubiao NiuXinjiang Astronomical Observatory , Urumqi , Xinjiang 830011 , ChinaAlisher S. KhodjaevUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanBakhodir M. KhafizovUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanI. M. AsfandiyarovUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanAsadulla M. ShaymanovUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanR. KarimovUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanQudratillo YuldashevUlugh Beg Astronomical Institute of the Uzbekistan Academy of Sciences , Astronomicheskaya str. 33 , Tashkent , UzbekistanHao LüPurple Mountain ObservatoryG. ZhaoriPurple Mountain ObservatoryRen-Quan HongPurple Mountain ObservatoryLongfei HuPurple Mountain ObservatoryLiu, YujuanNational Astronomical ObservatoriesZhijian XuPurple Mountain Observatory

2023en

ABI

Annotatsiya

The Stellar Abundances and Galactic Evolution Survey (SAGES) of the northern sky is a specifically-designed multi-band photometric survey aiming to provide reliable stellar parameters with accuracy comparable to those from low-resolution optical spectra. It was carried out with the 2.3-m Bok telescope of Steward Observatory and three other telescopes. The observations in the $u_s$ and $v_s$ passband produced over 36,092 frames of images in total, covering a sky area of $\sim9960$ degree$^2$. The median survey completeness of all observing fields for the two bands are of $u_{\rm s}=20.4$ mag and $v_s=20.3$ mag, respectively, while the limiting magnitudes with signal-to-noise ratio (S/N) of 100 are $u_s\sim17$ mag and $v_s\sim18$ mag, correspondingly. We combined our catalog with the data release 1 (DR1) of the first of Panoramic Survey Telescope And Rapid Response System (Pan-STARRS1, PS1) catalog, and obtained a total of 48,553,987 sources which have at least one photometric measurement in each of the SAGES $u_s$ and $v_s$ and PS1 $grizy$ passbands, which is the DR1 of SAGES and it will be released in our paper. We compare our $gri$ point-source photometry with those of PS1 and found an RMS scatter of $\sim2$% in difference of PS1 and SAGES for the same band. We estimated an internal photometric precision of SAGES to be on the order of $\sim1$%. Astrometric precision is better than $0^{\prime\prime}.2$ based on comparison with the DR1 of Gaia mission. In this paper, we also describe the final end-user database, and provide some science applications.

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DOI: 10.48550/arxiv.2306.15611

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