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Fig. 8.


Example of pulsators that either mimic tidal pulsators (KICs 8153568 and 6531496) or are actual tidal pulsators (KIC 11572363). In the cases of KIC 8153568 and 6531496 we do not plot a folded light curve but an extract of it over a little more than an orbital period (black) as the oscillations are not exactly in phase with the orbital period. The red curve is the original light curve minus the folded signal. In the case of KIC 8153568, the oscillations occur on the star that is hidden during the deeper eclipses, as the modulation is suppressed during them. Right panel: light curve and Fourier spectrum of KIC 11572363, a 19-day HB system with tidally excited oscillations.



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