Red-giant stars in eccentric binaries

P. G. Beck, K. Hambleton, J. Vos, T. Kallinger, R. A. Garcia, S. Mathur, K. Houmani, R.A. García, J. Ballot
2015 EPJ Web of Conferences  
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
more » ... smology 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.
doi:10.1051/epjconf/201510106004 fatcat:xggvao6kczd4zcde77cqwskqte