Test Particle Simulations of Relativistic Electrons Interacting with Whistler-mode Wave in the Radiation Belt

Details Test Particle Simulations of Relativistic Electrons Interacting with Whistler-mode Wave in the Radiation Belt Test Particle Simulations of Relativistic Electrons Interacting with Whistler-mode Wave in the Radiation Belt

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm33a0345f&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SM33A-0345

Physics

2774 Radiation Belts, 7807 Charged Particle Motion And Acceleration, 7845 Particle Acceleration

Scientific paper

We performed test particle simulations where we assumed the dipole geomagnetic field (L=4) and a coherent whistler-mode wave. We found a very efficient acceleration process due to the resonant trapping by a coherent whistler-mode wave propagating away from the equator, which we call relativistic resonant acceleration (RRA). Weakly relativistic electrons of a few hundred keV can be accelerated to the range of a few MeV through a single resonant interaction, if the wave packet is continuously generated near the equator. In reality, however, as is the case with chorus emissions, a whistler-mode wave packet has a finite length. In our simulation, we assumed several wave packets with finite lengths are generated successively and propagate away from the equator. We varied frequency of whistler-mode wave packets to simulate chorus emissions. We also varied wave amplitude which is an important factor for controlling the resonant trapping. We found that electrons are gradually accelerated to a few MeV by interacting with several wave packets. We demonstrate that the RRA plays an important role in the formation of relativistic electron flux in the outer radiation belt.

Affiliated with

Also associated with

No associations

Rating

Test Particle Simulations of Relativistic Electrons Interacting with Whistler-mode Wave in the Radiation Belt 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 Test Particle Simulations of Relativistic Electrons Interacting with Whistler-mode Wave in the Radiation Belt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Test Particle Simulations of Relativistic Electrons Interacting with Whistler-mode Wave in the Radiation Belt will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-973065