Bibcode
Metcalfe, T. S.; Monteiro, M. J. P. F. G.; Thompson, M. J.; Molenda-Żakowicz, J.; Appourchaux, T.; Chaplin, W. J.; Doğan, G.; Eggenberger, P.; Bedding, T. R.; Bruntt, H.; Creevey, O. L.; Quirion, P.-O.; Stello, D.; Bonanno, A.; Silva Aguirre, V.; Basu, S.; Esch, L.; Gai, N.; Di Mauro, M. P.; Kosovichev, A. G.; Kitiashvili, I. N.; Suárez, J. C.; Moya, A.; Piau, L.; García, R. A.; Marques, J. P.; Frasca, A.; Biazzo, K.; Sousa, S. G.; Dreizler, S.; Bazot, M.; Karoff, C.; Frandsen, S.; Wilson, P. A.; Brown, T. M.; Christensen-Dalsgaard, J.; Gilliland, R. L.; Kjeldsen, H.; Campante, T. L.; Fletcher, S. T.; Handberg, R.; Régulo, C.; Salabert, D.; Schou, J.; Verner, G. A.; Ballot, J.; Broomhall, A.-M.; Elsworth, Y.; Hekker, S.; Huber, D.; Mathur, S.; New, R.; Roxburgh, I. W.; Sato, K. H.; White, T. R.; Borucki, W. J.; Koch, D. G.; Jenkins, J. M.
Bibliographical reference
The Astrophysical Journal, Volume 723, Issue 2, pp. 1583-1598 (2010).
Advertised on:
11
2010
Journal
Citations
148
Refereed citations
118
Description
The 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,
which were monitored during the first 33.5 days of science operations.
One of these stars, the subgiant KIC 11026764, exhibits a characteristic
pattern of oscillation frequencies suggesting that it has evolved
significantly. We have derived asteroseismic estimates of the properties
of KIC 11026764 from Kepler photometry combined with ground-based
spectroscopic data. We present the results of detailed modeling for this
star, employing a variety of independent codes and analyses that attempt
to match the asteroseismic and spectroscopic constraints simultaneously.
We determine both the radius and the age of KIC 11026764 with a
precision near 1%, and an accuracy near 2% for the radius and 15% for
the age. Continued observations of this star promise to reveal
additional oscillation frequencies that will further improve the
determination of its fundamental properties.
Related projects
Helio and Astero-Seismology and Exoplanets Search
The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary
Savita
Mathur