Acceleration of Relativistic Electrons Through Whistler Mode Instability Driven by Temperature Anisotropy

Details Acceleration of Relativistic Electrons Through Whistler Mode Instability Driven by Temperature Anisotropy Acceleration of Relativistic Electrons Through Whistler Mode Instability Driven by Temperature Anisotropy

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm41a1127k&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SM41A-1127

Physics

7807 Charged Particle Motion And Acceleration, 7843 Numerical Simulation Studies, 7867 Wave/Particle Interactions, 2720 Energetic Particles, Trapped, 2730 Magnetosphere: Inner

Scientific paper

The resonant scattering process via whistler mode waves has been recognized as the strong candidate mechanism for the acceleration process of relativistic electrons during the recovery phase of a geomagnetic storm in the inner magnetosphere. We study resonant interaction between relativistic electrons and monochromatic whistler mode waves by using a self-consistent simulation model. The simulation model is based on the model which treats background cold electrons as a fluid and hot electrons as particles by PIC method including fully relativistic effect. In the simulation system, oppositely traveling monochromatic whistler mode waves are excited by an instability associated with a temperature anisotropy of keV energy electrons. The simulation result shows that the energy transfer process takes place between relativistic electrons and keV electrons and that the monochromatic whistler mode wave traps relativistic electrons which satisfy the resonance condition. Especially, in a case that oppositely propagating monochromatic waves coexist, a combined effect of wave trapping connects diffusion curves and opens a route for the rapid acceleration. The motion of the trapped relativistic electrons in the momentum space is estimated from the intersection of resonance curves and the scale of trapping region which is determined by both trapping velocity and resonance velocity. The present simulation reveals that selected resonant electrons are effectively accelerated in a homogeneous system where both forward and backward traveling waves interact with the relativistic electrons.

Affiliated with

Also associated with

No associations

Rating

Acceleration of Relativistic Electrons Through Whistler Mode Instability Driven by Temperature Anisotropy 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 Acceleration of Relativistic Electrons Through Whistler Mode Instability Driven by Temperature Anisotropy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acceleration of Relativistic Electrons Through Whistler Mode Instability Driven by Temperature Anisotropy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1469150