Insights into internal effects of common-envelope evolution using the extended Kepler mission

  title={Insights into internal effects of common-envelope evolution using the extended Kepler mission},
  author={J. Hermes and B. Gaensicke and A. Bischoff-Kim and S. Kawaler and J. Fuchs and B. Dunlap and J. Clemens and M. Montgomery and P. Chote and T. Barclay and T. Marsh and A. Gianninas and D. Koester and D. Winget and David J Armstrong and A. Rebassa-Mansergas and M. Schreiber},
  journal={Monthly Notices of the Royal Astronomical Society},
We present an analysis of the binary and physical parameters of a unique pulsating white dwarf with a main-sequence companion, SDSS J1136+0409, observed for more than 77 d during the first pointing of the extended Kepler mission: K2 Campaign 1. Using new groundbased spectroscopy, we show that this post-common-envelope binary has an orbital period of 6.89760103(60) h, which is also seen in the photometry as a result of Doppler beaming and ellipsoidal variations of the secondary. We… Expand

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