Nonlinear ion-acoustic waves supported by an ion beam

Details Nonlinear ion-acoustic waves supported by an ion beam Nonlinear ion-acoustic waves supported by an ion beam

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jgra..11206114g&link_type=abstract

Journal of Geophysical Research, Volume 112, Issue A6, CiteID A06114

Physics

Geophysics

5

Interplanetary Physics: Mhd Waves And Turbulence (2752, 6050, 7836), Interplanetary Physics: Planetary Bow Shocks, Interplanetary Physics: Solar Wind Plasma, Ionosphere: Plasma Waves And Instabilities (2772), Nonlinear Geophysics: Nonlinear Waves, Shock Waves, Solitons (0689, 2487, 3280, 3285, 4275, 6934, 7851, 7852)

Scientific paper

It is shown that in a plasma composed by electrons, a proton core, and a proton beam propagating along an external magnetic field, finite amplitude left-hand polarized waves propagating backward relative to the beam direction can trigger nonlinear ion-acoustic waves supported by the beam. A detailed study of such instabilities is carried out. The instability bounds are such that if there are large amplitude left-hand polarized waves propagating toward the Sun, nonlinear ion-acoustic waves supported by the beam should exist in high-speed solar wind streams.

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