Comparison of pitch angle diffusion by turbulent and monochromatic whistler waves

Details Comparison of pitch angle diffusion by turbulent and monochromatic whistler waves Comparison of pitch angle diffusion by turbulent and monochromatic whistler waves

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jgr...106.8477a&link_type=abstract

Journal of Geophysical Research, Volume 106, Issue A5, p. 8477-8482

Physics

15

Magnetospheric Physics: Energetic Particles, Precipitating, Trapped, Magnetospheric Physics: Magnetosphere-Inner

Scientific paper

A recent Hamiltonian analysis of magnetized test particles acted on by a small monochromatic wave is compared to a quasi-linear formulation of pitch angle diffusion by a turbulent spectrum of whistler waves. The quasi-linear expression has previously been applied to anthropogenic VLF transmissions to conclude that they dominate pitch angle diffusion of inner radiation belt electrons. However, because these transmissions are very narrow in frequency range, the monochromatic approach might be more appropriate. It is shown analytically that the monochromatic limit of the quasi-linear pitch angle diffusion coefficient reduces to the same expression as the diffusive regime of the Hamiltonian treatment. Agreement of the Hamiltonian pitch angle diffusion coefficient with the quasi-linear values is verified numerically using realistic parameters for the spread in frequency and wave-normal angle. As an aside, a simple, alternate derivation of quasi-linear diffusion coefficients is given.

Affiliated with

Also associated with

No associations

Rating

Comparison of pitch angle diffusion by turbulent and monochromatic whistler 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 Comparison of pitch angle diffusion by turbulent and monochromatic whistler waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comparison of pitch angle diffusion by turbulent and monochromatic whistler waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-942591