Update and Additional Frequencies for Kepler Star KIC 9700322. Veröffentlichungen der Kommission für Astronomie|Communications in Asteroseismology|Communications in Asteroseismology 162 162|

Résumé 0

Breger et al. (2011) reported on the discovery of 76 frequencies for the star KIC 9700322 from one month (Sept.-Oct. 2009) of short-cadence (1-minute sampling rate) photometric data during Quarter 3 of the NASA Kepler mission. Here we report on a reanalysis combining an additional month (June-July 2009) obtained during Quarter 2 as part of the Kepler Guest Observer program. This analysis confirms all but two of the earlier frequencies > 0.5 c/d, and in addition finds six new combination frequencies of the 8 highest amplitude modes, and three frequencies that are not combinations of these modes. Since we do not know the parents of 12 of the 83 frequencies, additional astrophysical discoveries may await in continued study of this star. The rotational modulations of the two radial modes and the 퓁 = 2 quintuplet are confirmed. For the two radial modes (f1, f2) and the central (m = 0) mode of the 퓁 = 2 quintuplet, f6, amplitude variability and/or close frequencies were found. The additional data do not reveal more of the 퓁=0, 1, 2 or higher-degree p modes that were expected, and this result is still a mystery.