Lower hybrid-resonance acceleration of electrons and ions in solar-flares and the associated microwave emission

K. G. McClements, R. Bingham, J. J. Su, J. M. Dawson, D. S. Spicer

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The particle acceleration processes here studied are driven by the relaxation of unstable ion ring distributions; these produce strong wave activity at the lower hybrid resonance frequency which collapses, and forms energetic electron and ion tails. The results obtained are applied to the problem posed by the production of energetic particles by solar flares. The numerical simulation results thus obtained by a 2 1/2-dimensional particle-in-cell code show a simultaneous acceleration of electrons to 10-500 keV energies, and of ions to as much as the 1 MeV range; the energy of the latter is still insufficient to account for gamma-ray emission in the 4-6 MeV range, but furnish a seed population for further acceleration.
Original languageEnglish
Pages (from-to)465-475
Number of pages11
JournalAstrophysical Journal
Volume409
Issue number1
DOIs
Publication statusPublished - May 1993

Keywords

  • electron acceleration
  • solar flares
  • microwave emission

Fingerprint Dive into the research topics of 'Lower hybrid-resonance acceleration of electrons and ions in solar-flares and the associated microwave emission'. Together they form a unique fingerprint.

  • Cite this