Asteroseismic analysis of the CoRoT target HD 169392

Authors :: Mathur, S.
Bruntt, H.
Catala, C.
Benomar, O.
Davies, G. R.
Garcia, R. A.
Salabert, D.
Ballot, J.
Mosser, B.
Regulo, C.
Chaplin, W. J.
Elsworth, Y.
Handberg, R.
Hekker, S.
Mantegazza, L.
Michel, E.
Poretti, E.
Rainer, M.
Roxburgh, I. W.
Samadi, R.
Steslicki, M.
Uytterhoeven, K.
Verner, G. A.
Auvergne, M.
Baglin, A.
Forteza, S. Barcelo
Baudin, F.
Cortes, T. Roca
Publication Year :: 2013
Abstract: The satellite CoRoT (Convection, Rotation, and planetary Transits) has provided high-quality data for almost six years. We show here the asteroseismic analysis and modeling of HD169392A, which belongs to a binary system weakly gravitationally bound as the distance between the two components is of 4250 AU. The main component, HD169392A, is a G0IV star with a magnitude of 7.50 while the second component is a G0V-G2IV star with a magnitude of 8.98. This analysis focuses on the main component, as the secondary one is too faint to measure any seismic parameters. A complete modeling has been possible thanks to the complementary spectroscopic observations from HARPS, providing Teff=5985+/-60K, log g=3.96+/-0.07, and [Fe/H]=- 0.04+/-0.10.<br />Comment: 6 pages, 1 figure. Proceedings of the Fujihara seminar held in Hakone (Japan) in November 2012