The NASA Kepler mission is providing an unprecedented set of asteroseismic data. In particular, short-cadence lightcurves (~60s samplings), allow us to study solar-like stars covering a wide range of masses, spectral types and evolutionary stages. Oscillations have been observed in around 600 out of 2000 stars observed for one month during the survey phase of the Kepler mission. The measured light curves can present features related to the surface magnetic activity (starspots) and, thus we are able to obtain a good estimation of the surface (differential) rotation. In this work we establish the basis of such research and we show a potential method to find stars with fast surface rotations.
@article{arxiv.1109.6488,
title = {Fast Rotating solar-like stars using asteroseismic datasets},
author = {R. A. García and T. Ceillier and T. Campante and G. R. Davies and S. Mathur and J. C Suarez and J. Ballot and O. Benomar and A. Bonanno and A. S. Brun and W. J. Chaplin and J. Christensen-Dalsgaard and S. Deheuvels and Y. Elsworth and R. Handberg and S. Hekker and A. Jimenez and C. Karoff and H. Kjeldsen and S. Mathis and B. Mosser and P. L. Palle and M. Pinsonneault and C. Regulo and D. Salabert and V. Silva Aguirre and D. Stello and M. J. Thompson and G. Verner and the PE11 team of Kepler WG1},
journal= {arXiv preprint arXiv:1109.6488},
year = {2011}
}
Comments
8 pages, 4 figures. To appear in the ASP proceedings of "The 61st Fujihara seminar: Progress in solar/stellar physics with helio- and asteroseismology", 13th-17th March 2011, Hakone, Japan