Non-adiabatic tidal forcing of a massive, uniformly rotating star — III. Asymptotic treatment for low frequencies in the inertial regime

We describe a generalization of the asymptotic calculation of the tidal torques experienced by a massive star as a result of a companion in circular orbit, originally considered by Zahn, to the case of a rotating star when the forcing frequency is small and in the inertial regime, that is it is less...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 1997-11, Vol.291 (4), p.651-657, Article 651
Main Authors: Papaloizou, J. C. B., Savonije, G. J.
Format: Article
Language:English
Subjects:
binaries: close
hydrodynamics
stars: atmospheres
stars: oscillations
stars:rotation
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Summary:We describe a generalization of the asymptotic calculation of the tidal torques experienced by a massive star as a result of a companion in circular orbit, originally considered by Zahn, to the case of a rotating star when the forcing frequency is small and in the inertial regime, that is it is less than twice the rotation frequency in magnitude. The results confirm the presence of a strong toroidal mode resonance feature for retrograde forcing and also, with a simple description of the convective core, the presence of some core inertial mode features in the response. These were found numerically by Savonije & Papaloizou.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/291.4.651