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Browsing by Subject "Stars: Oscillations"

Browsing by Subject "Stars: Oscillations"

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  • The asteroseismic potential of Kepler: first results for solar-type stars 
    Chaplin, W. J; Appourchaux, T; Elsworth, Y; Garcia, R. A; Houdek, G; Karoff, C; Metcalfe, T. S; Molenda-Zakowicz, J; Monteiro, M. J. P. F. G; Thompson, M. J; Brown, T. M; Kiss, L. L; Kitiashvili, I. N; Kolenberg, K; Korhonen, H; Kosovichev, A. G; Kupka, F; Lebreton, Y; Leroy, B; Ludwig, H. G; Mathis, S; Michel, E; Miglio, A; Montalban, J; Moya, A; Noels, A; Noyes, R. W; Palle, P. L; Piau, L; Preston, H. L; Roca Cortes, T; Roth, M; Sato, K. H; Schmitt, J; Serenelli, A. M; Silva Aguirre, V; Stevens, I. R; Suarez, J. C; Suran, M. D; Trampedach, R; Turck-Chieze, S; Uytterhoeven, K; Ventura, R; Christensen-Dalsgaard, J; Gilliland, R. L; Kjeldsen, H; Borucki, W. J; Koch, D; Jenkins, J. M; Ballot, J; Basu, S; Bazot, M; Bedding, T. R; Benomar, O; Bonanno, A; Brandao, I. M; Bruntt, H; Campante, T. L; Creevey, O. L; Di Mauro, M. P; Dogan, G; Dreizler, S; Eggenberger, P; Esch, L; Fletcher, S. T; Frandsen, S; Gai, N; Gaulme, P; Handberg, R; Hekker, S; Howe, R; Huber, D; Korzennik, S. G; Lebrun, J. C; Leccia, S; Martic, M; Mathur, S; Mosser, B; New, R; Quirion, P. O; Regulo, C; Roxburgh, I. W; Salabert, D; Schou, J; Sousa, S. G; Stello, D; Verner, G. A; Arentoft, T; Barban, C; Belkacem, K; Benatti, S; Biazzo, K; Boumier, P; Bradley, P. A; Broomhall, A. M; Buzasi, D. L; Claudi, R. U; Cunha, M. S; D'Antona, F; Deheuvels, S; Derekas, A; Garcia Hernandez, A; Giampapa, M. S; Goupil, M. J; Gruberbauer, M; Guzik, J. A; Hale, S. J; Ireland, M. J (IOP Publishing, 2010-04)
    We present preliminary asteroseismic results from Kepler on three G-type stars. The observations, made at one-minute cadence during the first 33.5d of science operations, reveal high signal-to-noise solar-like oscillation ...
  • delta Scuti stars in Praesepe. II. The STACC 1998 campaign - The spectroscopy 
    Dall, T. H; Frandsen, S; Lehmann, H; Anupama, G. C; Kambe, E; Handler, G; Kawanomoto, S; Watanabe, E; Fukata, M; Nagae, T; Horner, S (E D P Sciences, 2002-04)
    We present the results of a large international spectroscopic campaign on the delta Scuti star BN Cnc. Combining observations from five observatories taken over more than two weeks, we calculate line indices of the Hα line. ...
  • Detection of solar-like oscillations from Kepler photometry of the open cluster NGC 6819 
    Stello, D; Basu, S; Bruntt, H; Mosser, B; Stevens, I. R; Brown, T. M; Christensen-Dalsgaard, J; Gilliland, R. L; Kjeldsen, H; Arentoft, T; Ballot, J; Barban, C; Bedding, T. R; Chaplin, W. J; Elsworth, Y. P; Garcia, R. A; Goupil, M. J; Hekker, S; Huber, D; Mathur, S; Meibom, S; Samadi, R; Sangaralingam, V; Baldner, C. S; Belkacem, K; Biazzo, K; Brogaard, K; Suarez, J. C; D'Antona, F; Demarque, P; Esch, L; Gai, N; Grundah, F; Lebreton, Y; Jiang, B; Jevtic, N; Karoff, C; Miglio, A; Molenda-Zakowicz, J; Montalban, J; Noels, A; Roca Cortes, T; Roxburgh, I. W; Serenelli, A. M; Silva, V; Christiaan Sterken, A; Stine, P; Szabo, R; Weiss, A; Borucki, W. J; Koch, D; Jenkins, J. M (Institute of Physics, 2010-04)
    Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance and initial chemical composition allows strong tests of the theory of stellar evolution. We report results ...
  • Determining global parameters of the oscillations of solar-like stars 
    Mathur, S; Garcia, R. A; Regulo, C; Creevey, P. L; Ballot, J; Salabert, D; Arentoft, T; Quirion, P. O; Chaplin, W. J; Kjeldsen, H (EDP Sciences, 2010-02)
    Helioseismology has enabled us to better understand the solar interior, while also allowing us to better constrain solar models. But now is a tremendous epoch for asteroseismology as space missions dedicated to studying ...
  • A fresh look at the seismic spectrum of HD49933: analysis of 180 days of CoRoT photometry 
    Benomar, O; Baudin, F; Campante, T. L; Chaplin, W. J; García, R. A; Gaulme, P; Toutain, T; Verner, G. A; Appourchaux, T; Ballot, J; Barban, C; Elsworth, Y; Mathur, S; Mosser, B; Régulo, C; Roxburgh, I. W; Auvergne, M; Baglin, A; Catala, C; Michel, E; Samadi, R (EDP Sciences, 2009-11)
    Context. Solar-like oscillations have now been observed in several stars, thanks to ground-based spectroscopic observations and space-borne photometry. CoRoT, which has been in orbit since December 2006, has observed the ...
  • High-resolution spectroscopy of R CrB - pulsations, shells and mass loss 
    Kameswara Rao, N; Lambert, D. L (The Royal Astronomical Society, 1997-01)
    High spectral resolution observations obtained in 1994 and spanning three pulsation cycles of R CrB are discussed along with available UBV photometric observations for the same epochs. Model atmosphere based analyses of ...
  • Seismic and spectroscopic characterization of the solar-like pulsating CoRoT target HD 49385 
    Deheuvels, S; Bruntt, H; Michel, E; Barban, C; Verner, G; Régulo, C; Mosser, B; Mathur, S; Gaulme, P; Garcia, R. A; Boumier, P; Appourchaux, T; Samadi, R; Catala, C; Baudin, F; Baglin, A; Auvergne, M; Roxburgh, I. W; Pérez Hernández, F (EDP Science, 2010-06-11)
    Context. The star HD 49385 is the first G-type solar-like pulsator observed in the seismology field of the space telescope CoRoT. The satellite collected 137 days of high-precision photometric data on this star, confirming ...
  • Solar-like oscillations in HD 181420: data analysis of 156 days of CoRoT data 
    Barban, C; Deheuvels, S; Baudin, F; Appourchaux, T; Auvergne, M; Ballot, J; Boumier, P; Chaplin, W. J; Garcia, R. A; Gaulme, P; Michel, E; Mosser, B; Regulo, C; Roxburgh, I. W; Verner, G; Baglin, A; Catala, C; Samadi, R; Bruntt, H; Elsworth, Y; Mathur, S (EDP Sciences, 2009-10)
    Context. The estimate of solar-like oscillation properties, such as their frequencies, amplitudes and lifetimes, is challenging because of their low amplitudes and will benefit from long and uninterrupted observing runs. ...
  • Solar-like oscillations in low-luminosity red giants: first results from Kepler 
    Bedding, T. R; Huber, D; Stello, D; Elsworth, Y. P; Hekker, S; Kallinger, T; Mathur, S; Mosser, B; Preston, H. L; Ballot, J; Barban, C; Broomhall, A. M; Buzasi, D. L; Chaplin, W. J; Garcia, R. A; Gruberbauer, M; Hale, S. J; De Ridder, J; Frandsen, S; Borucki, W. J; Brown, T; Christensen-Dalsgaard, J; Gilliland, R. L; Jenkins, J. M; Kjeldsen, H; Koch, D; Belkacem, K; Bildsten, L; Bruntt, H; Campante, T. L; Deheuvels, S; Derekas, A; Dupret, M. A; Goupil, M. J; Hatzes, A; Houdek, G; Ireland, M. J; Jiang, C; Karoff, C; Kiss, L. L; Lebreton, Y; Miglio, A; Montalban, J; Noels, A; Roxburgh, I. W; Sangaralingam, V; Stevens, I. R; Suran, M. D; Tarrant, N. J; Weiss, A (IOP Publishing, 2010-04)
    We have measured solar-like oscillations in red giants using time-series photometry from the first 34 days of science operations of the Kepler Mission. The light curves, obtained with 30-minute sampling, reveal clear ...

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