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HD 181068: a triply eclipsing system with intrinsically variable red giant component

Published online by Cambridge University Press:  25 February 2014

A. Derekas
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, 1121 Budapest Konkoly Thege M. út 15-17, Hungary
T. Borkovits
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, 1121 Budapest Konkoly Thege M. út 15-17, Hungary Baja Astronomical Observatory, 6500 Baja, Szegedi út, Kt. 766, Hungary ELTE Gothard-Lendület Research Group, 9700 Szombathely, Szent Imre herceg ut 112, Hungary
J. Fuller
Affiliation:
Center for Space Research, Department of Astronomy, Cornell University, Ithaca, NY 14853, USA
D. Huber
Affiliation:
NASA Ames Research Center, MS 244-30, Moffett Field, CA 94035, USA
H. Lehmann
Affiliation:
Thüringer Landessternwarte Tautenburg, 07778 Tautenburg, Germany
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Abstract

We present the analysis of HD 181068 which is one of the first triply eclipsing triple system discovered. Using Kepler photometry, ground based spectroscopic and interferometric measurements, we determined the stellar and orbital parameters of the system. We show that the oscillations observed in the red giant component of the system are tidally forced oscillations, while one of the most surprising results is that it does not show solar-like oscillations.

Type
Research Article
Copyright
© EAS, EDP Sciences, 2014

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