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Asteroseismic inference on the spin-orbit misalignment and stellar parameters of HAT-P-7

Lund, Mikkel; Lundkvist, Mia; Aguirre, V Silva; Houdek, Gunter; Casagrande, Luca; Van Eylen, Vincent; Campante, Tiago L; Karoff, C.; Kjeldsen, H; Albrecht, Simon; Chaplin, W. J.


Context. The measurement of obliquities-the angle between the orbital and stellar rotation-in star-planet systems is of great importance for understanding planet system formation and evolution. The bright and well-studied HAT-P-7 (Kepler-2) system is intriguing because several Rossiter-McLaughlin (RM) measurements found a high projected obliquity in this system, but it was not possible so far to determine whether the orbit is polar and/or retrograde. Aims. The goal of this study is to measure...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201424326
Access Rights: Open Access


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