Formation of ion acoustic solitary waves upstream of the earth's bow shock

Details Formation of ion acoustic solitary waves upstream of the earth's bow shock Formation of ion acoustic solitary waves upstream of the earth's bow shock

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90...95p&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Jan. 1, 1985, p. 95-98.

Physics

4

Ion Acoustic Waves, Solar Terrestrial Interactions, Solar Wind, Solitary Waves, Bow Waves, Plasma Turbulence, Ponderomotive Forces, Schroedinger Equation

Scientific paper

The turbulent plasma development of Lee and Parks is applied to the solar wind approaching the earth's bow shock region. The ponderomotive force contribution is due to ion acoustic waves propagating in the direction of the ambient magnetic field. In this case, the envelope of the ion acoustic wave is shown to satisfy the cubic Schroedinger equation. Modulational instabilities exist for waves in the solar wind, thereby predicting the generation of solitary waves. This analysis further identifies that the ion acoustic waves which exhibit this instability have short wavelengths.

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