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2011MNRAS.417..591B - Mon. Not. R. Astron. Soc., 417, 591-601 (2011/October-2)
Kepler observations of δ Scuti stars.
BALONA L.A. and DZIEMBOWSKI W.A.
Abstract (from CDS):
The problem of low frequencies in hot δ Scuti stars remains unresolved. We confirm that these frequencies have long lifetimes and are not likely to be of stochastic origin. By carefully examining the periodograms of δ Sct stars in the low-frequency regime, we were able to identify a group of δ Sct stars with low-frequency peaks closely resembling those attributed to pure γ Dor stars. These stars lie in the region of the HR diagram where ground-based γ Dor stars are located. None is found hotter than the blue edge of γ Dor pulsation. We suspect that these are genuine γ Dor/δ Sct hybrids.
Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS
Journal keyword(s): stars: oscillations - stars: variables: δ Scuti
Simbad objects: 20
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