Electron acceleration within coronal loops - A wave-particle process?

Details Electron acceleration within coronal loops - A wave-particle process? Electron acceleration within coronal loops - A wave-particle process?

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987soph..111...19l&link_type=abstract

(Observatoire de Paris, CNRS, CNES, et al., CESRA Workshop on Particle Acceleration and Trapping in Solar Flares, 2nd, Aubigny-s

Physics

2

Coronal Loops, Electron Acceleration, Solar Electrons, Whistlers, Electron Energy, Magnetohydrodynamic Waves, Particle Interactions, Solar X-Rays

Scientific paper

A simple model for the acceleration of electrons up to suprathermal energies of about a few tens of keV within magnetic solar loops is proposed. In the model, quasi-monochromatic whistler waves generated near the top of the loop (due to the presence of an anisotropic electron population) propagate back and forth along the coronal loop and become electrostatic whistlers which are capable of trapping thermal electrons at the top of the loop. The phase velocity of the wave is increased due to the inhomogeneity of the B-field, thus accelerating the trapped electrons before they can be detrapped at the feet of the coronal loop.

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