The asteroseismic potential of Kepler: first results for solar-type stars
W. J. Chaplin, T. Appourchaux, Y. Elsworth, R. A. Garcia, G. Houdek,, C. Karoff, T. S. Metcalfe, J. Molenda-Zakowicz, M. J. P. F. G. Monteiro, M., J. Thompson, T. M. Brown, J. Christensen-Dalsgaard, R. L. Gilliland, H., Kjeldsen, W. J. Borucki, D. Koch, J. M. Jenkins, J. Ballot
TL;DR
This paper reports early results from Kepler's observations of three solar-type stars, demonstrating the potential of asteroseismology to determine stellar properties like radius, mass, and age with high precision.
Contribution
It presents the first asteroseismic analysis of Kepler data for G-type stars, showcasing the ability to extract detailed stellar parameters from oscillation spectra.
Findings
Detection of about 20 oscillation modes in each star
Initial estimates of stellar radii, masses, and ages
High signal-to-noise solar-like oscillation spectra
Abstract
We present preliminary asteroseismic results from Kepler on three G-type stars. The observations, made at one-minute cadence during the first 33.5d of science operations, reveal high signal-to-noise solar-like oscillation spectra in all three stars: About 20 modes of oscillation may be clearly distinguished in each star. We discuss the appearance of the oscillation spectra, use the frequencies and frequency separations to provide first results on the radii, masses and ages of the stars, and comment in the light of these results on prospects for inference on other solar-type stars that Kepler will observe.
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