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2013MNRAS.429.2500B - Mon. Not. R. Astron. Soc., 429, 2500-2514 (2013/March-1)
Effects of the Coriolis force on high-order g modes in γ Doradus stars.
BOUABID M.-P., DUPRET M.-A., SALMON S., MONTALBAN J., MIGLIO A. and NOELS A.
Abstract (from CDS):
The effect of the Coriolis force depends on the kind of mode considered (prograde sectoral or not) and increases with their periods. As a consequence, we first find that the period spacing between modes is no longer periodically oscillating around a constant value. Secondly, we show that the frequency gap (5-15 cycles day-1) arising from stable modes between γ Dor-type high-order g modes and δ Scuti-type modes can be easily filled by g-mode frequencies shifted to higher values by the rotation. Thirdly, we analyse the combined effect of diffusive mixing and the Coriolis force on the period spacings. And finally, we predict a slight broadening of the γ Dor instability strip.
Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): stars: oscillations - stars: rotation - stars: variables: general
Simbad objects: 1
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