KIC 4247791: a SB4 system with two eclipsing binaries (2EBs) - A quadruple system?

@article{Lehmann2012KIC4A,
  title={KIC 4247791: a SB4 system with two eclipsing binaries (2EBs) - A quadruple system?},
  author={Holger Lehmann and Mathias Zechmeister and Stefan Dreizler and S. Schuh and Russia Thueringer Landessternwarte Tautenburg and H Germany and Georg-August-Universitaet and Institut fuer Theoretische Astrophysik and Goettingen},
  journal={Astronomy and Astrophysics},
  year={2012},
  volume={541}
}
KIC 4247791 is an eclipsing binary observed by the Kepler satellite mission. We wish to determine the nature of its components and in particular the origin of a shallow dip in its Kepler light curve that previous investigations have been unable to explain in a unique way. We analyze newly obtained high-resolution spectra of the star using synthetic spectra based on atmosphere models, derive the radial velocities of the stellar components from cross-correlation with a synthetic template, and… 

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