A fitting LEGACY – modelling Kepler's best stars
Stellar Astrophysics Centre (SAC), Department of Physics and Astronomy, Aarhus University, Denmark
2 School of Physics and Astronomy, University of Birmingham, UK
3 Institute of Astronomy & Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK
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Published online: 27 October 2017
The LEGACY sample represents the best solar-like stars observed in the Kepler mission[5, 8]. The 66 stars in the sample are all on the main sequence or only slightly more evolved. They each have more than one year's observation data in short cadence, allowing for precise extraction of individual frequencies. Here we present model fits using a modified ASTFIT procedure employing two different near-surface-effect corrections, one by Christensen-Dalsgaard and a newer correction proposed by Ball & Gizon. We then compare the results obtained using the different corrections. We find that using the latter correction yields lower masses and significantly lower χ2 values for a large part of the sample.
© Owned by the authors, published by EDP Sciences, 2017
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