ISSN:
1573-093X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract This paper suggests that fast periodic oscillations in the neutral sheet occur after it is perturbed strongly. An analytic solution of the oscillation process, of which the period T is about 1 ms, is obtained on the basis of the snow-plow model. This dynamical process causes the periodic appearance and disappearance of a diffusive region in the sheet. A time interval δt, during which the diffusive region exists, is about 10−2-10−3 T. Under the assumption of a relatively weak electric field and the spectrum index ν = 1 of Langmuir turbulence, we obtain an analytic solution of the quasi-linear equation of the distribution function of particles with a periodic electric field. We show that the combined acceleration by the electric field and turbulence can produce the periodic streams of energetic electrons. Their energy can reach about 50 keV. These periodic streams of electrons could produce the microwave millisecond spike emission.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00158503
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