J.A. Guzik,
M. Breger
S. 62 - 72
doi:
10.1553/cia162s62
Verlag der Österreichischen Akademie der Wissenschaften
Abstract:
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 𝓁 = 2 quintuplet are confirmed. For the two radial modes (f1, f2) and the central (m = 0) mode of the 𝓁 = 2 quintuplet, f6, amplitude variability and/or close frequencies were found. The additional data do not reveal more of the 𝓁=0, 1, 2 or higher-degree p modes that were expected, and this result is still a mystery.
2011/11/30 13:30:14
Object Identifier:
0xc1aa5572 0x0029e6e7
Rights:All rights reserved.For questions regarding copyright and copies please contact us by email.Die Serie Communications in Asteroseismology (CoAst) stellt eine international gefragte Plattform für wissenschaftliche Publikationen der neuesten Forschungsergebnisse auf dem Gebiet der Asteroseismologie dar. Forschungsgegenstand der Asteroseismologie sind veränderliche und pulsierende Sterne. Neben den halbjährlich erscheinenden regulären Ausgaben mit Beiträgen aus der laufenden Forschung werden auch Sonderausgaben für Konferenzberichte bzw. Programmhandbücher herausgegeben.
Contents
Analyses of Crawfords uvby ß calibrations using the pulsational variations of FG Vir by P.Haas
A spectroscopic study of the hybrid pulsator γ Pegasi by C. P. Pandey, T.Morel, M. Briquet, et al.
Frequency analysis of five short periodic pulsators by A. Liakos, P.Niarchos
Update and Additional Frequencies for Kepler Star KIC 970032 by Joyce A. Guzik, Michel Breger
New pulsation analysis of the oscillating Eclipsing Binary BG Peg by A. Liakos, P.Niarchos
…
The publication series of Communications in Asteroseismology (CoAst) is one of the most important international journals in the field of asteroseismology. Asteroseismology is the science of variable and pulsating stars. Every six months CoAst publishes a newsletter with papers on ongoing research projects. Besides these regular issues, special issues such as conference proceedings or program manuals are published in this series.
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