LAMOST Observations in 15 K2 Campaigns. I. Low-resolution Spectra from LAMOST DR6
Wang,Jiangtao1; Fu,Jian-Ning1; Zong,Weikai1; Smith,M. C.2; De Cat,Peter3; Shi,Jianrong4; Luo,Ali4; Zhang,Haotong4; Frasca,A.5; Corbally,C. J.6; Molenda-?akowicz,J.7; Catanzaro,G.5; Gray,R. O.8; Wang,Jiaxin1; Pan,Yang1
Source PublicationThe Astrophysical Journal Supplement Series
AbstractAbstract The Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST)-K2 (LK2) project, initiated in 2015, aims to collect low-resolution spectra of targets in the K2 campaigns, similar to the LAMOST-Kepler project. By the end of 2018, a total of 126 LK2 plates had been observed by LAMOST. After cross-matching the catalog of the LAMOST data release 6 (DR6) with that of the K2 approved targets, we found 160,619 usable spectra of 84,012 objects, most of which had been observed more than once. The effective temperature, surface gravity, metallicity, and radial velocity from 129,974 spectra for 70,895 objects are derived through the LAMOST Stellar Parameter Pipeline (LASP). The internal uncertainties were estimated to be 81 K, 0.15 dex, 0.09 dex, and 5 km s?1, respectively, when derived from a spectrum with a signal-to-noise ratio in the g band (S/Ng) of 10. These estimates are based on results for targets with multiple visits. The external accuracies were assessed by comparing the parameters of targets in common with the APOGEE and Gaia surveys, for which we generally found linear relationships. A final calibration is provided, combining external and internal uncertainties for giants and dwarfs, separately. We foresee that these spectroscopic data will be used widely in different research fields, especially in combination with K2 photometry.
KeywordAstronomy databases Fundamental parameters of stars Catalogs
WOS IDIOP:0067-0049-251-2-abc1ed
PublisherThe American Astronomical Society
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Document Type期刊论文
Corresponding AuthorFu,Jian-Ning
Affiliation1.Department of Astronomy, Beijing Normal University, Beijing 100875, People’s Republic of China;,
2.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 20030, People’s Republic of China
3.Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussel, Belgium
4.CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Beijing 100101, People’s Republic of China
5.INAF–Osservatorio Astrofisico di Catania, Via S. Sofia 78, I-95123 Catania, Italy
6.Vatican Observatory Research Group, Steward Observatory, Tucson, AZ 85721-0065, USA
7.Astronomical Institute of the University of Wroc?aw, ul. Kopernika 11, 51-622 Wroc?aw, Poland
8.Department of Physics and Astronomy, Appalachian State University, Boone, NC 28608, USA
Recommended Citation
GB/T 7714
Wang,Jiangtao,Fu,Jian-Ning,Zong,Weikai,et al. LAMOST Observations in 15 K2 Campaigns. I. Low-resolution Spectra from LAMOST DR6[J]. The Astrophysical Journal Supplement Series,2020,251(2).
APA Wang,Jiangtao.,Fu,Jian-Ning.,Zong,Weikai.,Smith,M. C..,De Cat,Peter.,...&Pan,Yang.(2020).LAMOST Observations in 15 K2 Campaigns. I. Low-resolution Spectra from LAMOST DR6.The Astrophysical Journal Supplement Series,251(2).
MLA Wang,Jiangtao,et al."LAMOST Observations in 15 K2 Campaigns. I. Low-resolution Spectra from LAMOST DR6".The Astrophysical Journal Supplement Series 251.2(2020).
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