Title: Detection of gravity modes in the massive binary V380 Cyg from Kepler space-based photometry and high-resolution spectroscopy
Authors: Tkachenko, Andrew ×
Aerts, Conny
Pavlovski, K
Southworth, J
Degroote, Pieter
Debosscher, Jonas
Still, M
Bryson, S
Molenberghs, Geert
Bloemen, Steven
de Vries, Ben
Hrudkova, M
Lombaert, Robin
Neyskens, P
Pápics, Péter
Raskin, Gert
Van Winckel, Hans
Morris, R. L
Sanderfer, D. T
Seader, S. E #
Issue Date: Jul-2012
Publisher: Priestley and Weale
Series Title: Monthly Notices of the Royal Astronomical Society vol:424 issue:1 pages:L21-L25
Abstract: We report the discovery of low-amplitude gravity-mode oscillations in the massive binary star V380 Cyg, from 180 d of Kepler custom-aperture space photometry and 5 months of high-resolution high signal-to-noise ratio spectroscopy. The new data are of unprecedented quality and allowed the improvement of the orbital and fundamental parameters for this binary. The orbital solution was subtracted from the photometric data and led to the detection of periodic intrinsic variability with frequencies, of which some are multiples of the orbital frequency and others are not. Spectral disentangling allowed the detection of line-profile variability in the primary. With our discovery of intrinsic variability interpreted as gravity-mode oscillations, V380 Cyg becomes an important laboratory for future seismic tuning of the near-core physics in massive B-type stars.
ISSN: 0035-8711
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Leuven Biostatistics and Statistical Bioinformatics Centre (L-BioStat)
× corresponding author
# (joint) last author

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