Site Map
Contacts
Follow us on Facebook Follow us on Twitter YouTube channel
Centro de Astrofísica da Universidade do Porto

Asteroseismology of solar-type stars with Kepler: II. Stellar modeling

T. S. Metcalfe, M. J. P. F. G. Monteiro, M. J. Thompson, W. J. Chaplin, S. Basu, A. Bonanno, M. P. Di Mauro, G. Doǧan, P. Eggenberger, C. Karoff, D. Stello, KASC WG1

Abstract
Observations from the Kepler satellite were recently published for three bright G-type stars, which were monitored during the first 33.5 d of science operations. One of these stars, KIC 11026764, exhibits a characteristic pattern of oscillation frequencies suggesting that the star has evolved significantly. We have derived initial estimates of the properties of KIC 11026764 from the oscillation frequencies observed by Kepler, combined with ground-based spectroscopic data. We present preliminary results from detailed modeling of this star, employing a variety of independent codes and analyses that attempt to match the asteroseismic and spectroscopic constraints simultaneously.

Keywords
stars: individual (KIC 11026764) - stars: interiors - stars:late-type - stars: oscillations

Notes
The Kepler Asteroseismic Science Consortium Working Group 1 also includes: Appourchaux, T., Elsworth, Y., Garcia, R.A., Houdek, G., Molenda-Żakowicz, J., Brown, T.M., Christensen-Dalsgaard, J., Gilliland, R.L., Kjeldsen, H., Borucki,W.J.,Koch, D., Jenkins, J.M., Ballot, J., Bazot, M., Bedding, T.R., Benomar, O., Brandao, I.M., Bruntt, H., Campante, T.L., Creevey, O.L., Dreizler, S., 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., 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., 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 & Wilson, P.A.

Astronomische Nachrichten
Volume 331, Page 977
December 2010

>> ADS>> DOI

Institute of Astrophysics and Space Sciences

Institute of Astrophysics and Space Sciences (IA) is a new but long anticipated research infrastructure with a national dimension. It embodies a bold but feasible vision for the development of Astronomy, Astrophysics and Space Sciences in Portugal, taking full advantage and fully realizing the potential created by the national membership of the European Space Agency (ESA) and the European Southern Observatory (ESO). IA resulted from the merging the two most prominent research units in the field in Portugal: the Centre for Astrophysics of the University of Porto (CAUP) and the Center for Astronomy and Astrophysics of the University of Lisbon (CAAUL). It currently hosts more than two-thirds of all active researchers working in Space Sciences in Portugal, and is responsible for an even greater fraction of the national productivity in international ISI journals in the area of Space Sciences. This is the scientific area with the highest relative impact factor (1.65 times above the international average) and the field with the highest average number of citations per article for Portugal.

Proceed on CAUP's website|Go to IA website