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Asteroseismology of solar-type stars with Kepler I: Data analysis

C. Karoff 1, 2 W.J. Chaplin 1 Thierry Appourchaux 3 Y. Elsworth 1 R.A. Garcia 4 G. Houdek 5 T.S. Metcalfe 6 J. Molenda-Żakowicz 7 M.J.P.F.G. Monteiro 8, 9 M.J. Thompson 10 J. Christensen-Dalsgaard 2 R.L. Gilliland 11 H. Kjeldsen 2 S. Basu 12 T.R. Bedding 13 T.L. Campante 2 P. Eggenberger 14 S.T. Fletcher 15 P. Gaulme 3 R. Handberg 2 S. Hekker 1 Milena Martic 16 S. Mathur 6 Benoît Mosser 17 C. Regulo 18, 19 I.W. Roxburgh 20 D. Salabert 19, 18 D. Stello 13 G.A. Verner 20 K. Belkacem 21 K. Biazzo 22 M.S. Cunha 8, 9 M. Gruberbauer 23 J.A. Guzik 24 F. Kupka 25 Bernard Leroy 17 H.-G. Ludwig 26 S. Mathis 4 A. Noels 21 R.W. Noyes 27 T. Roca Cortes 19, 18 M. Roth 28 K.H. Sato 4 J. Schmitt 29 M.D. Suran 30 R. Trampedach 31 K. Uytterhoeven 4 R. Ventura 32 P.A. Wilson 33, 34
16 HELIOS - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : We report on the first asteroseismic analysis of solar-type stars observed by Kepler. Observations of three G-type stars, made at one-minute cadence during the first 33.5 days of science operations, reveal high signal-to-noise solar-like oscillation spectra in all three stars: About 20 modes of oscillation can clearly be distinguished in each star. We discuss the appearance of the oscillation spectra, including the presence of a possible signature of faculae, and the presence of mixed modes in one of the three stars.
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C. Karoff, W.J. Chaplin, Thierry Appourchaux, Y. Elsworth, R.A. Garcia, et al.. Asteroseismology of solar-type stars with Kepler I: Data analysis. Astronomical Notes / Astronomische Nachrichten, Wiley-VCH Verlag, 2010, 331 (9-10), pp.972-976. ⟨10.1002/asna.201011438⟩. ⟨hal-00683333⟩

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