Nonlinear ion-acoustic waves supported by an ion beam
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Abstract
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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Publicación ISI
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URI: https://repositorio.uchile.cl/handle/2250/118734
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JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS Vol. 112 01/06/2023 2007 A6
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