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Oscillations de l'atmosphère de l'étoile pulsante

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Résumé

On étudie les oscillations non-adiabatiques d'une atmosphère stellaire sous l'approximation du premier ordre, en déduisant les solutions générales des équations différentielles. On confirme les conditions aux limites de la pulsation d'étoile. Pour les étoiles variables des supergéantes rouges l'onde progressive est possible dans l'atmosphère, avec l'oscillation stationnaire.

Abstract

Non-adiabatic linear oscillations of the stellar atmosphere are studied by deriving the general solution of the equation of the problem. Boundary conditions which we obtained at the stellar surface are confirmed for the pulsation of the cepheid variables. It is shown that the progressive wave coupling with the stellar pulsation is possible in the atmospheres of red supergiants.

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Authors and Affiliations

  1. Institut Astronomique, Université Tôhoku, Sendai, Japon

    Mine Takeuti

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  1. Mine Takeuti
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Takeuti, M. Oscillations de l'atmosphère de l'étoile pulsante. Astrophys Space Sci 3, 219–228 (1969). https://doi.org/10.1007/BF00651028

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  • DOI: https://doi.org/10.1007/BF00651028

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