Red-giant stars in eccentric binaries
1 Service d’Astrophysique, IRFU/DSM/CEA Saclay.
2 Instituut voor Sterrenkunde, KU Leuven, Belgium.
3 University of Central Lancashire, Preston UK.
4 Institut für Astronomie der Universität Wien, Austria.
a e-mail: firstname.lastname@example.org
Published online: 23 September 2015
The unparalleled photometric data obtained by NASA’s Kepler Space Telescope has led to improved understanding of red-giant stars and binary stars. We discuss the characterization of known eccentric system, containing a solar-like oscillating red-giant primary component. We also report several new binary systems that are candidates for hosting an oscillating companion. A powerful approach to study binary stars is to combine asteroseimic techniques with light curve fitting. Seismology allows us to deduce the properties of red giants. In addition, by modeling the ellipsoidal modulations we can constrain the parameters of the binary system. An valuable independent source are ground-bases, high-resolution spectrographs.
© Owned by the authors, published by EDP Sciences, 2015
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