Wednesday, August 8, 2012

1208.1311 (L. Fox-Machado et al.)

Solar like oscillations in the stars KIC 5390438 and KIC 5701829 observed by Kepler    [PDF]

L. Fox-Machado, A. S. Baran
The preliminary results of an analysis of the KIC 5390438 and KIC 5629080 light curves are presented. The variations of these stars were detected by Baran et al. (2011a) in a search for pulsating M dwarfs in the Kepler public database. In particular, the objects have been observed by the Kepler spacecraft during theQ2 and Q3 runs in a short-candence mode (integration time of $\sim$ 1 min). A Fourier analysis of the time series data has been performed by using the PERIOD04 package. The resulting power spectrum of each star shows a clear excess of power in the frequency range 100 and 350 $\mu$Hz with a sequence of spaced peaks typical of solar-like oscillations. A rough estimation of the large and small separations has been obtained. Spectroscopic observations secured at the Observatorio Astronomico Nacional in San Pedro M\'artir allowed us to derive a spectral classification olar like oscillations in the stars KIC 5390438 and KIC 5701829 observed by Kepler Thus, KIC 5390438 and KIC 5701829 have been identified as solar-like oscillating red giant and red dwarf stars, respectively.
View original: http://arxiv.org/abs/1208.1311

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