4 documents found, page 1 of 1
Ensemble Asteroseismology of Solar-Type Stars with the NASA Kepler Mission
Chaplin, WJ; Kjeldsen, H; Christensen Dalsgaard, J; Basu, S; Miglio, A; Appourchaux, T; Bedding, TR; Elsworth, Y; Garcia, RA; Gilliland, RL; Girardi, LIn addition to its search for extrasolar planets, the NASA Kepler mission provides exquisite data on stellar oscillations. We report the detections of oscillations in 500 solar-type stars in the Kepler field of view, an ensemble that is large enough to allow statistical studies of intrinsic stellar properties (such as mass, radius, and age) and to test theories of stellar evolution. We find that the distributio...
A PRECISE ASTEROSEISMIC AGE AND RADIUS FOR THE EVOLVED SUN-LIKE STAR KIC 11026764
Metcalfe, TS; Monteiro, MJPFG; Thompson, MJ; Molenda Zakowicz, J; Appourchaux, T; Chaplin, WJ; Dogan, G; Eggenberger, P; Bedding, TR; Bruntt, HThe primary science goal of the Kepler Mission is to provide a census of exoplanets in the solar neighborhood, including the identification and characterization of habitable Earth-like planets. The asteroseismic capabilities of the mission are being used to determine precise radii and ages for the target stars from their solar-like oscillations. Chaplin et al. published observations of three bright G-type stars...
THE ASTEROSEISMIC POTENTIAL OF KEPLER: FIRST RESULTS FOR SOLAR-TYPE STARS
Chaplin, WJ; Appourchaux, T; Elsworth, Y; Garcia, RA; Houdek, G; Karoff, C; Metcalfe, TS; Molenda Zakowicz, J; Monteiro, MJPFG; Thompson, MJ; Brown, TMWe present preliminary asteroseismic results from Kepler on three G-type stars. The observations, 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 may be clearly distinguished in each star. We discuss the appearance of the oscillation spectra, use the frequencies and frequency...
Asteroseismology and interferometry
Cunha, MS; Aerts, C; Christensen Dalsgaard, J; Baglin, A; Bigot, L; Brown, TM; Catala, C; Creevey, OL; Domiciano D de Souza; Eggenberger, P; Garcia, PJVAsteroseismology provides us with a unique opportunity to improve our understanding of stellar structure and evolution. Recent developments, including the first systematic studies of solar-like pulsators, have boosted the impact of this field of research within astrophysics and have led to a significant increase in the size of the research community. In the present paper we start by reviewing the basic observat...