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Title: LAMOST OBSERVATIONS IN THE KEPLER FIELD: SPECTRAL CLASSIFICATION WITH THE MKCLASS CODE

The LAMOST-Kepler project was designed to obtain high-quality, low-resolution spectra of many of the stars in the Kepler field with the Large Sky Area Multi Object Fiber Spectroscopic Telescope (LAMOST) spectroscopic telescope. To date 101,086 spectra of 80,447 objects over the entire Kepler field have been acquired. Physical parameters, radial velocities, and rotational velocities of these stars will be reported in other papers. In this paper we present MK spectral classifications for these spectra determined with the automatic classification code MKCLASS. We discuss the quality and reliability of the spectral types and present histograms showing the frequency of the spectral types in the main table organized according to luminosity class. Finally, as examples of the use of this spectral database, we compute the proportion of A-type stars that are Am stars, and identify 32 new barium dwarf candidates.
Authors:
 [1] ;  [2] ;  [3] ; ;  [4] ; ; ; ; ; ;  [5] ; ; ;  [6]
  1. Department of Physics and Astronomy, Appalachian State University, Boone, NC 28608 (United States)
  2. Vatican Observatory Research Group, Steward Observatory, Tucson, AZ 85721-0065 (United States)
  3. Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussel (Belgium)
  4. Department of Astronomy, Beijing Normal University, 19 Avenue Xinjiekouwai, Beijing 100875 (China)
  5. Key Laboratory for Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)
  6. Nanjing Institute of Astronomical Optics and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Nanjing 210042 (China)
Publication Date:
OSTI Identifier:
22520037
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astronomical Journal (Online); Journal Volume: 151; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABSORPTION SPECTROSCOPY; BARIUM; CLASSIFICATION; EMISSION SPECTROSCOPY; LUMINOSITY; M CODES; RADIAL VELOCITY; RELIABILITY; RESOLUTION; STARS; TELESCOPES