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Derivation of the amplitude equations of acoustic modes of an unstable semi-infinite polytrope

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Abstract

The coupling of non-radial pulsations and convection is studied on a simple example: an unstable semi-infinite polytrope. An expansion is proposed and the equations that should describe correctly the pulsations are isolated. The additional complications of the real solar case are discussed at the end.

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Authors and Affiliations

  1. Observatoire du Pic-du-Midi et de Toulouse, 14 Avenue Edouard Belin, 31400, Toulouse, France

    Jean-Pierre Poyet

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  1. Jean-Pierre Poyet
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Proceedings of the 66th IAU Colloquium: Problems in Solar and Stellar Oscillations, held at the Crimean Astrophysical Observatory, U.S.S.R., 1–5 September, 1981.

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Poyet, JP. Derivation of the amplitude equations of acoustic modes of an unstable semi-infinite polytrope. Sol Phys 82, 267–296 (1983). https://doi.org/10.1007/BF00145569

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