Fokker-Planck modeling of auroral wave-particle interactions

R. O. Dendy, B. M. Harvey, M. O'brien, R. Bingham

Research output: Contribution to journalArticle

Abstract

Observations of electron velocity distributions in the auroral zone, carried out by spacecraft and by rockets, have found high-energy, magnetic field-aligned, suprathermal tails in regions where strong wave activity in the lower hybrid range of frequencies is also detected. A causal link between these observations could in principle arise from quasi-linear diffusion of the electrons, driven by Landau resonant lower hybrid waves. To investigate this, a two-dimensional finite difference Fokker-Planck code has been written. The results of the numerical investigations carried out with this code indicate that the observed lower hybrid wave intensities are sufficient to produce strongly nonthermal electron distributions, which are similar to those observed.
LanguageEnglish
Pages21973-21978
Number of pages6
JournalJournal of Geophysical Research
Volume100
Issue numberA11
DOIs
Publication statusPublished - 1 Nov 1995

Fingerprint

wave-particle interactions
Particle interactions
electrons
electron
Electrons
modeling
auroral zones
magnetic fields
Rockets
electron distribution
rockets
Velocity distribution
Spacecraft
spacecraft
tail
velocity distribution
Magnetic fields
magnetic field
energy
particle

Keywords

  • altitude
  • distributions
  • electrons
  • electron accelerator
  • hynrid current drive
  • intensities
  • ion acceleration
  • plasma
  • spacecraft
  • suprauroral region
  • velocities
  • velocity disctributions
  • waves
  • auroral phenomena
  • energetic particles
  • wave/particle interactions

Cite this

Dendy, R. O. ; Harvey, B. M. ; O'brien, M. ; Bingham, R. / Fokker-Planck modeling of auroral wave-particle interactions. In: Journal of Geophysical Research. 1995 ; Vol. 100, No. A11. pp. 21973-21978.
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Fokker-Planck modeling of auroral wave-particle interactions. / Dendy, R. O.; Harvey, B. M.; O'brien, M.; Bingham, R.

In: Journal of Geophysical Research, Vol. 100, No. A11, 01.11.1995, p. 21973-21978.

Research output: Contribution to journalArticle

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AU - Dendy, R. O.

AU - Harvey, B. M.

AU - O'brien, M.

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KW - altitude

KW - distributions

KW - electrons

KW - electron accelerator

KW - hynrid current drive

KW - intensities

KW - ion acceleration

KW - plasma

KW - spacecraft

KW - suprauroral region

KW - velocities

KW - velocity disctributions

KW - waves

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