Theory of nearly perpendicular plasma waves and comparison to Freja satellite observations

Details Theory of nearly perpendicular plasma waves and comparison to Freja satellite observations Theory of nearly perpendicular plasma waves and comparison to Freja satellite observations

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10121795s&link_type=abstract

Journal of Geophysical Research, Volume 101, Issue A10, p. 21795-21813

Physics

Plasma Physics

34

Ionosphere: Plasma Waves And Instabilities, Ionosphere: Wave/Particle Interactions, Space Plasma Physics: Kinetic And Mhd Theory

Scientific paper

The linear and nonlinear two-fluid nature of oblique electrostatic plasma waves is explored and clarified. It is found that two distinct wave regimes exist corresponding to propagation angles greater than or less than ɛ=√me/mi with respect to the perpendicular direction of the magnetic field. Propagation angles greater than ɛ correspond to either the electrostatic ion cyclotron wave or the shorter wavelength oblique ion acoustic wave, which are termed the fast ion cyclotron and fast ion acoustic waves respectively. Angles less than ɛ correspond to the inertial Alfvén wave which is called the slow ion cyclotron wave and in the short wavelength limit is called the slow ion acoustic wave. The slow ion-acoustic wave is found to have a predominately ion-Boltzmann response. Initial value simulations having fast or slow ion cyclotron wave initial conditions of modest amplitudes result in nonlinear steepening and subsequent breakup into fast or slow ion acoustic waves respectively. This mechanism of ion acoustic wave generation may partially explain the origin of ion acoustic activity detected by the Freja satellite within regions of ion and electron acceleration.

Affiliated with

Also associated with

No associations

Rating

Theory of nearly perpendicular plasma waves and comparison to Freja satellite observations 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 Theory of nearly perpendicular plasma waves and comparison to Freja satellite observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of nearly perpendicular plasma waves and comparison to Freja satellite observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1136825