Physics
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7..737s&link_type=abstract
Geophysical Research Letters, vol. 7, Oct. 1980, p. 737-740. Research supported by the Alexander von Humboldt-Stiftung.
Physics
11
Auroras, Computerized Simulation, Electron Flux Density, Electron Oscillations, Periodic Variations, Plasma Layers, Boundary Value Problems, Electron Acceleration, Electron Precipitation, Free Electrons, Magnetohydrodynamic Stability, Poisson Equation, Vlasov Equations
Scientific paper
Results from a numerical simulation of a double layer show some features similar to those of inverted-V events. The strong heating of thermal and precipitating electrons is observed along with extremely low frequency fluctuations found during inverted-V events. It is suggested that after the acceleration of auroral electrons by the double layer, the precipitating free electrons are heated by the nonlinear effects of the electron beam plasma instability. Fluctuations and pulsations of auroral electron fluxes during auroral events are caused by a relaxation type of oscillation. The finite extent of one dimensional plasma is simulated by solving the Vlasov and Poisson equations as an initial and boundary value problem.
Singh Navinder
Thiemann Heinz
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