Long-range perturbations produced by a localized packet of ion-acoustic waves in a collisionless plasma

  • M. Lontano
  • D. Ryutov


A well localized packet of ion-acoustic waves propagating in a collisionless unmagnetized plasma produces long-range second-order perturbations of the moments of the electron distribution function due to those electrons which cross the region where the electric field is present, take a “kick", and carry this information at large distances from the packet itself. An extended “halo" is thus formed around the wave-packet, with an intensity decreasing in space typically according to a power-law. This “halo" contains electrostatic as well as magnetic perturbations.

PACS. 52.35.-g Waves, oscillations, and instabilities in plasmas and intense beams – 52.38.-r Laser-plasma interactions – 94.20.Bb Wave propagation 


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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2002

Authors and Affiliations

  • M. Lontano
    • 1
  • D. Ryutov
    • 2
  1. 1.Istituto di Fisica del Plasma “Piero Caldirola", C.N.R., Euratom-ENEA-CNR Ass., Milan, ItalyIT
  2. 2.Lawrence Livermore National Laboratory, Livermore, CA 94551, USAUS

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