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Damping Effects on Parametric Decays of Alfvén Waves

  • L. Gomberoff
  • J. A. Araneda
Conference paper

Abstract

It is shown that damping effects can destabilize regions that are stable under non-dissipative fluid theory. Damping effects on the ion-acoustic modes are simulated by a collisional-like term in the longitudinal component of the fluid equations. It is shown that when there is only a beat wave instability, damping effects can destabilize modulational and decay-type instabilities. These results are in agreement with hybrid kinetic-fluid approaches and hybrid simulation codes.

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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • L. Gomberoff
    • 1
  • J. A. Araneda
    • 2
  1. 1.Departamento de FÍsica, Facultad de CienciasUniversidad de ChileSantiagoChile
  2. 2.Departamento de Física, Facultad de Ciencias Físicas y MatemáticasUniversidad de ConcepciónConcepciónChile

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