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Title: 2M1938+4603: a rich, multimode pulsating sdB star with an eclipsing dM companion observed with Kepler
Authors: Ostensen, Roy ×
Green, E. M
Bloemen, Steven
Marsh, T. R
Laird, J. B
Morris, M
Moriyama, E
Oreiro Rey, Raquel
Reed, M. D
Kawaler, S. D
Aerts, Conny
Vuckovic, Maja
Degroote, Pieter
Telting, J. H
Kjeldsen, H
Gilliland, R. L
Christensen-Dalsgaard, J
Borucki, W. J
Koch, D #
Issue Date: Oct-2010
Publisher: Priestley and Weale
Series Title: Monthly Notices of the Royal Astronomical Society vol:408 issue:1 pages:L51-L55
Abstract: 2M1938+4603 (KIC 9472174) displays a spectacular light curve dominated by a strong reflection effect and rather shallow, grazing eclipses. The orbital period is 0.126 d, the second longest period yet found for an eclipsing sdB+dM, but still close to the minimum 0.1-d period among such systems. The phase-folded Kepler light curve was used to detrend the orbital effects from the data set. The amplitude spectrum of the residual light curve reveals a rich collection of pulsation peaks spanning frequencies from similar to 50 to 4500 mu Hz. The presence of a complex pulsation spectrum in both the p- and g-mode regions has never before been reported in a compact pulsator.
ISSN: 0035-8711
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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