Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/32377
Title: | LAMOST Observations in 15 K2 Campaigns. I. Low-resolution Spectra from LAMOST DR6 | Authors: | Wang, Jiangtao Fu, Jian-Ning Zong, Weikai Smith, M. C. De Cat, Peter Shi, Jianrong Luo, Ali Zhang, Haotong FRASCA, Antonio Corbally, C. J. Molenda-Żakowicz, J. CATANZARO, Giovanni Gray, R. O. Wang, Jiaxin Pan, Yang |
Issue Date: | 2020 | Journal: | THE ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | Number: | 251 | Issue: | 2 | First Page: | 27 | Abstract: | 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<SUP>-1</SUP>, respectively, when derived from a spectrum with a signal-to-noise ratio in the g band (S/N<SUB>g</SUB>) 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. | URI: | http://hdl.handle.net/20.500.12386/32377 | URL: | https://iopscience.iop.org/article/10.3847/1538-4365/abc1ed https://api.elsevier.com/content/abstract/scopus_id/85098562184 |
ISSN: | 0067-0049 | DOI: | 10.3847/1538-4365/abc1ed | Bibcode ADS: | 2020ApJS..251...27W | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Wang_2020_ApJS_251_27.pdf | Pdf editoriale | 2.16 MB | Adobe PDF | View/Open |
Page view(s)
58
checked on Aug 7, 2024
Download(s)
11
checked on Aug 7, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.