Atmospheric parameters of 169 F-, G-, K- and M-type stars in the Kepler field

被引:81
作者
Molenda-Zakowicz, J. [1 ]
Sousa, S. G. [2 ]
Frasca, A. [3 ]
Uytterhoeven, K. [4 ,5 ]
Briquet, M. [6 ,7 ]
Van Winckel, H. [7 ]
Drobek, D. [1 ]
Niemczura, E. [1 ]
Lampens, P. [8 ]
Lykke, J. [9 ]
Bloemen, S. [7 ]
Gameiro, J. F. [2 ,10 ]
Jean, C. [7 ]
Volpi, D. [8 ]
Gorlova, N. [7 ]
Mortier, A. [2 ,10 ]
Tsantaki, M. [2 ,10 ]
Raskin, G. [7 ]
机构
[1] Uniwersytetu Wroclawskiego, Inst Astron, PL-51622 Wroclaw, Poland
[2] Univ Porto, Ctr Astrofis, P-4150762 Porto, Portugal
[3] Osserv Astrofis Catania, INAF, I-95123 Catania, Italy
[4] Inst Astrofis Canarias, E-38200 Tenerife, Spain
[5] Univ La Laguna, Dept Astrofis, E-28206 Tenerife, Spain
[6] Univ Liege, Inst Astrophys & Geophys, B-4000 Liege, Belgium
[7] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, Belgium
[8] Koninklijke Sterrenwacht Belgie, B-1180 Brussels, Belgium
[9] Nord Opt Telescope, E-38700 Santa Cruz De La Palma, Spain
[10] Univ Porto, Fac Ciencias, Dept Fis & Astron, P-4100 Porto, Portugal
基金
欧洲研究理事会;
关键词
stars: fundamental parameters; open clusters and associations: individual: NGC 6811; open clusters and associations: individual: NGC 6819; SOLAR-TYPE STARS; ALL-SKY SURVEY; SPECTROSCOPIC PARAMETERS; RED GIANTS; VARIABLE-STARS; MAIN-SEQUENCE; OPEN CLUSTERS; PLANET; ASTEROSEISMOLOGY; ABUNDANCES;
D O I
10.1093/mnras/stt1095
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 (T-eff), the surface gravity (log g), the metallicity ([Fe/H]), the projected rotational velocity (v sin i) 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 +/- 150 K in T-eff, +/- 0.15 dex in [Fe/H] and +/- 0.3 dex in log g. 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 6000 K.
引用
收藏
页码:1422 / 1434
页数:13
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