Linear and nonlinear electromagnetic and electrostatic instabilities in a plasma with two ion beams

Details Linear and nonlinear electromagnetic and electrostatic instabilities in a plasma with two ion beams Linear and nonlinear electromagnetic and electrostatic instabilities in a plasma with two ion beams

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jgra..11302102g&link_type=abstract

Journal of Geophysical Research, Volume 113, Issue A2, CiteID A02102

Physics

Plasma Physics

4

Interplanetary Physics: Solar Wind Plasma, Ionosphere: Plasma Waves And Instabilities (2772), Mathematical Geophysics: Instability Analysis, Nonlinear Geophysics: Nonlinear Waves, Shock Waves, Solitons (0689, 2487, 3280, 3285, 4275, 6934, 7851, 7852), Space Plasma Physics: Kinetic Waves And Instabilities

Scientific paper

Linear and nonlinear properties of a plasma system with a proton and an alpha-particle beam, are studied. It is shown that the presence of a second beam can change the linear and nonlinear stability thresholds of the magnetosonic instabilities. Since the nonlinear dispersion relation of the nonlinear waves has 14 roots, the system is very rich in parametric decays. There are parametric decays which clearly cannot be present in a one beam system. These parametric decays are of the decay type, modulational, and essentially electromagnetic beat wave instabilities. In a previous paper (Gomberoff, 2007b), the stabilization properties of the magnetosonic instability triggered by the presence of a large amplitude Alfén waves for fix temperature were studied. Here the study is extended to large amplitude waves belonging to the dispersion branch having a resonance at the proton gyrofrequency, for several temperature values. It is shown that the threshold amplitude for stabilization can suffer drastic changes with respect to the one beam system. Finally, it is shown that when both beams trigger their own magnetosonic instabilities, the system can also be stabilized by the presence of the large amplitude wave.

Affiliated with

Also associated with

No associations

Rating

Linear and nonlinear electromagnetic and electrostatic instabilities in a plasma with two ion beams does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Linear and nonlinear electromagnetic and electrostatic instabilities in a plasma with two ion beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear and nonlinear electromagnetic and electrostatic instabilities in a plasma with two ion beams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1322785