Mutual nonlinear interaction between two kinetic Alfven waves and its effect on filamentation: Applications to solar wind and coronal heating

Details Mutual nonlinear interaction between two kinetic Alfven waves and its effect on filamentation: Applications to solar wind and coronal heating Mutual nonlinear interaction between two kinetic Alfven waves and its effect on filamentation: Applications to solar wind and coronal heating

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1338s&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A11, pp. SSH 1-1, CiteID 1338, DOI 10.1029/2001JA009135

Physics

Plasma Physics

16

Space Plasma Physics: Nonlinear Phenomena, Interplanetary Physics: Plasma Waves And Turbulence, Solar Physics, Astrophysics, And Astronomy: Coronal Holes, Space Plasma Physics: Wave/Wave Interactions, Interplanetary Physics: Solar Wind Plasma

Scientific paper

This paper presents the model equations governing the mutual nonlinear interaction between two small but finite amplitude kinetic Alfven waves using two fluid models when the β of the plasma is less than unity (for high-β cases one has to use the Boltzmann equation). The source of nonlinearity is the nonlinear electron heating and ponderomotive force-driven nonlinear modification in the background density. The solutions of these model equations have been obtained by using analytical and numerical methods to study the effect of their mutual interaction on filament (hot spot) formation. It is concluded that the threshold field required for filament formation and their critical size is significantly affected by the mutual nonlinear interaction. Its effect on solar wind turbulence and coronal heating is also pointed out.

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