Relaxation of the loss-cone by quasi-linear diffusion of the electron-cyclotron maser instability in the solar corona

Details Relaxation of the loss-cone by quasi-linear diffusion of the electron-cyclotron maser instability in the solar corona Relaxation of the loss-cone by quasi-linear diffusion of the electron-cyclotron maser instability in the solar corona

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...85.1141a&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 85, no. 3, Nov. 1990, p. 1141-1177.

Astronomy and Astrophysics

Astrophysics

64

Electron Cyclotron Heating, Maser Outputs, Particle Diffusion, Solar Corona, Brightness Temperature, Cold Plasmas, Computerized Simulation, Energy Conversion Efficiency, Kinetic Equations, Magnetic Mirrors

Scientific paper

A self-consistent numeric two-dimensional code using kinetic-wave particle equations has been developed and applied to the maser dynamics of the solar corona. Time histories generated by the code reveal details of the evolution of the linear phase, the saturation and subsequent relaxation of the loss cone. Quantitative values are obtained for the saturation time, the amount of the converted free energy, the critical wave energy level for onset of maser diffusion, the velocity and pitch angle range of the resonant particles, and the relative importance of the different magnetoionic modes and harmonics. A wide range of initial conditions is covered by varying the loss-cone distribution and the ambient cold plasma parameters.

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