Oscillating red-giant stars in eccentric binary systems

Abstract

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.

2 pages, 1 Figure, poster proceedings for the CoRoT Symposium 3, Kepler KASC-7 joint meeting: The Space Photometry Revolution

References in corpus (4)

• Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the Habitable Zone
• Pulsating red giant stars in eccentric binary systems discovered from Kepler space-based photometry
• Impact on asteroseismic analyses of regular gaps in Kepler data
• Detection of solar-like oscillations in the bright red giant stars $\gamma$ Psc and ${\theta }^1$ Tau from a 190-day high-precision spectroscopic multisite campaign

Cited by in corpus (6)

• Testing the asteroseismic scaling relations for Red Giants with Eclipsing Binaries Observed by Kepler
• Systematic search for stellar pulsators in the eclipsing binaries observed by Kepler
• Seismic probing of the first dredge-up event through the eccentric red-giant & red-giant spectroscopic binary KIC9163796
• KIC 7955301: a hierarchical triple system with eclipse timing variations and an oscillating red giant
• KIC 2568888: To be or not to be a binary
• Red giant asteroseismic binaries in the Kepler field