Wave generation and pulsation in stars with convective zones

Unno, Wasaburo

doi:10.1007/3-540-08532-7_53

Wave generation and pulsation in stars with convective zones

Wasaburo Unno¹

VIII. Waves
Conference paper
First Online: 01 January 2005

140 Accesses
9 Citations

Part of the book series: Lecture Notes in Physics ((LNP,volume 71))

Abstract

Wave generation processes are classified in (1) strong and (2) weak, and (a) spontaneous and (b) stimulated processes. Then, the case (2b) operating in convective zones is discussed in detail. Both the dynamical and the thermodynamical coupling between pulsation and convection are formulated by use of the diffusion approximation for the turbulent convection. A mixing length variable with time is thereby introduced. The work integral is transformed so that each of its terms can reveal the mechanism responsible for the stellar stability. An important destabilizing mechanism associated with the convective flux is found to exist among other known mechanisms. The mechanical work is shown to be rather important.

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Department of Astronomy, University of Tokyo, Bunkyo-ku, Tokyo
Wasaburo Unno

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Wasaburo Unno
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Edward A. Spiegel Jean-Paul Zahn

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Unno, W. (1977). Wave generation and pulsation in stars with convective zones. In: Spiegel, E.A., Zahn, JP. (eds) Problems of Stellar Convection. Lecture Notes in Physics, vol 71. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-08532-7_53

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DOI: https://doi.org/10.1007/3-540-08532-7_53
Published: 11 July 2005
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-08532-4
Online ISBN: 978-3-540-35982-1
eBook Packages: Springer Book Archive

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