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      Atmospheric parameters of 169 FGKM stars

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      Creators
      Molenda-Zakowicz, J.
      Sousa, S.G.
      Frasca, A.
      Uytterhoeven, K.
      Briquet, M.
      Winckel, H. van
      Drobek, D.
      Niemczura, E.
      Lampens, P.
      Lykke, J.
      Bloemen, S.
      Gameiro, J.F.
      Jean, C.
      Volpi, D.
      Gorlova, N.
      Mortier, A.
      Tsantaki, M.
      Raskin, G.
      Date of Archiving
      2014
      Archive
      ViZieR
      Related links
      http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/MNRAS/434/1422
      Publication type
      Dataset
      Access level
      Open access
      Please use this identifier to cite or link to this item: https://hdl.handle.net/2066/151877   https://hdl.handle.net/2066/151877
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      Organization
      Astrophysics
      Audience(s)
      Astronomy, astrophysics
      Key words
      stars; fundamental parameters - open clusters and associations; individual; NGC 6811 - open clusters and associations; NGC 6819
      Abstract
      The asteroseismic and planetary studies, like all research related to stars, need precise and accurate stellar atmospheric parameters as input. We aim at deriving the effective temperature (Teff), the surface gravity (logg), the metallicity ([Fe/H]), the projected rotational velocity (vsini) and the MK type for 169 F-, G-, K- and M-type Kepler targets which were observed spectroscopically from the ground with five different instruments. We use two different spectroscopic methods to analyse 189 high-resolution, high-signal-to-noise spectra acquired for the 169 stars. For 67 stars, the spectroscopic atmospheric parameters are derived for the first time. KIC 9693187 and 11179629 are discovered to be double-lined spectroscopic binary systems. The results obtained for those stars for which independent determinations of the atmospheric parameters are available in the literature are used for a comparative analysis. As a result, we show that for solar-type stars the accuracy of present determinations of atmospheric parameters is ±150K in Teff, ±0.15 dex in [Fe/H] and ±0.3 dex in logg. Finally, we confirm that the curve-of-growth analysis and the method of spectral synthesis yield systematically different atmospheric parameters when they are applied to stars hotter than 6000K.
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      • Datasets [1399]
      • Faculty of Science [33782]
       
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