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Characterizing solar-type stars from full-length Kepler data sets using the Asteroseismic Modeling Portal
Orlagh Creevey (Observatoire de la Cote d'Azur), Travis Metcalfe (Space Science Institute, Boulder), David Salabert (CEA, Saclay), Frederic Thevenin (Universite Cote d), et al.
The Kepler space telescope yielded unprecedented data for the study of solar-like oscillations in other stars. The large samples of multi-year observations posed an enormous data analysis challenge that has only recently been surmounted. Asteroseismic modeling has become more sophisticated over time, with better methods gradually developing alongside the improved observations. We apply the latest version of the Asteroseismic Modeling Portal (AMP) to the full-length Kepler data sets for 57 stars, and we use the results to investigate the amplitude and character of surface effects within the sample. We find that the empirical correction for surface effects suggested by Kjeldsen and coworkers is adequate for solar-type stars that are not much hotter or significantly more evolved than the Sun. Precise parallaxes from the Gaia mission and future observations from TESS and PLATO promise to improve the reliability of stellar properties derived from asteroseismology.