We report on the first asteroseismic analysis of solar-type stars observed by Kepler. Observations of three G-type stars, 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 can clearly be distinguished in each star. We discuss the appearance of the oscillation spectra, including the presence of a possible signature of faculae, and the presence of mixed modes in one of the three stars.
@article{arxiv.1005.0507,
title = {Asteroseismology of Solar-type Stars with Kepler I: Data Analysis},
author = {C. Karoff and W. J. Chaplin and T. Appourchaux and Y. Elsworth and R. A. Garcia and G. Houdek and T. S. Metcalfe and J. Molenda-Zakowicz and M. J. P. F. G. Monteiro and M. J. Thompson and J. Christensen-Dalsgaard and R. L. Gilliland and H. Kjeldsen and S. Basu and T. R. Bedding and T. L. Campante and P. Eggenberger and S. T. Fletcher and P. Gaulme and R. Handberg and S. Hekker and M. Martic and S. Mathur and B. Mosser and C. Regulo and I. W. Roxburgh and D. Salabert and D. Stello and G. A Verner and K. Belkacem and K. Biazzo and M. S. Cunha and M. Gruberbauer and J. A. Guzik and F. Kupka and B. Leroy and H. -G. Ludwig and S. Mathis and A. Noels and R. W. Noyes and T. Roca Cortes and M. Roth and K. H. Sato and J. Schmitt and M. D. Suran and R. Trampedach and K. Uytterhoeven and R. Ventura and P. A. Wilson},
journal= {arXiv preprint arXiv:1005.0507},
year = {2015}
}
Comments
5 pages, 4 figure, submitted to Astronomische Nachrichten