Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...316..462k&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 316, May 1, 1987, p. 462-472.
Astronomy and Astrophysics
Astrophysics
22
Cyclotron Radiation, Electron Cyclotron Heating, Harmonic Generations, Particle Acceleration, Solar Flares, Type 3 Bursts, Kinetic Energy, Monochromatic Radiation, Polarized Electromagnetic Radiation, Propagation Modes
Scientific paper
A nonlinear analysis of particle acceleration in a finite bandwidth, obliquely propagating electromagnetic cyclotron wave is presented. It has been suggested by Sprangle and Vlahos in 1983 that the narrow bandwidth cyclotron radiation emitted by the unstable electron distribution inside a flaring solar loop can accelerate electrons outside the loop by the interaction of a monochromatic wave propagating along the ambient magnetic field with the ambient electrons. It is shown here that electrons gyrating and streaming along a uniform, static magnetic field can be accelerated by interacting with the fundamental or second harmonic of a monochromatic, obliquely propagating cyclotron wave. It is also shown that the acceleration is virtually unchanged when a wave with finite bandwidth is considered. This acceleration mechanism can explain the observed high-energy electrons in type III bursts.
Karimabadi Homa
Menyuk Curtis R.
Sprangle Phillip
Vlahos Loukas
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