Plasma Heating and Transport at the Magnetopause due to Kinetic Alfven Waves

Details Plasma Heating and Transport at the Magnetopause due to Kinetic Alfven Waves Plasma Heating and Transport at the Magnetopause due to Kinetic Alfven Waves

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm41b0791f&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM41B-0791

Physics

2724 Magnetopause, Cusp, And Boundary Layers, 7827 Kinetic And Mhd Theory, 7839 Nonlinear Phenomena, 7859 Transport Processes, 7867 Wave/Particle Interactions

Scientific paper

The magnetopause and boundary layer are typically characterized by large amplitude transverse wave activity with freqencies below the ion cyclotron frequency. The signatures of the transverse waves suggest that they are kinetic Alfveń waves with wavelength on the order of the ion gyroradius [Johnson and Cheng, Geophys. Res. Lett., 28, 227, (2001)]. We investigate ion motion in the presence of large amplitude kinetic Alfveń waves with wavelength the order of ρ i and demonstrate that for sufficiently large wave amplitude the particle orbits become stochastic leading to ion heating and plasma transport. Low energy particles in the core of the ion distribution can migrate to higher energy through the stochastic sea leading to an increase in Tperpendicular to and a broadening of the distribution. This process can explain transverse ion energization and formation of conics which have been observed near the magnetopause in both the magnetosheath and low-latitude boundary layer. Similarly, stochastic ion transport can also occur leading to magnetosheath ion entry across the magnetopause with D ~ 109 m2/s.

Affiliated with

Also associated with

No associations

Rating

Plasma Heating and Transport at the Magnetopause due to Kinetic Alfven Waves 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 Plasma Heating and Transport at the Magnetopause due to Kinetic Alfven Waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma Heating and Transport at the Magnetopause due to Kinetic Alfven Waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1384594