Wave generation and pulsation in stars with convective zones

  • Wasaburo Unno
VIII. Waves
Part of the Lecture Notes in Physics book series (LNP, volume 71)


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.


Viscous Dissipation Convective Zone Convective Flux Work Integral Nuclear Burning 
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Copyright information

© Springer-Verlag 1977

Authors and Affiliations

  • Wasaburo Unno
    • 1
  1. 1.Department of AstronomyUniversity of TokyoBunkyo-kuTokyo

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