Electrostatic particle simulations of solitary waves in the auroral region

Electrostatic Solitary Waves in Multicomponent Nonthermal Plasma

A systematic investigation has been made of ion-acoustic solitary waves in plasma consisting of cold positively and negatively charged ions, as well as nonthermal electrons. The basic features of the solitary waves are investigated by using the reductive perturbation method, which is valid for the small but finite amplitude waves. Computational investigations have been performed to examine the ...

Solitary Waves in Particle Beams

Since space charge waves on a particle beam exhibit both dispersive and nonlinear character, solitary waves or solitons are possible. Dispersive, nonlinear wave propagation in high current beams is found to be similar to ion-acoustic waves in plasmas with an analogy between Debye screening and beam pipe shielding. Exact longitudinal solitary wave propagation is found for potentials associated w...

Particle Acceleration by Alfvén Waves in the Auroral Zone

On the three-dimensional configuration of electrostatic solitary waves

The simplest models of the electrostatic solitary waves observed by the Geotail spacecraft in the magnetosphere are developed proceeding from the concept of electron phase space holes. The technique to construct the models is based on an approximate quasi-one-dimensional description of the electron dynamics and three-dimensional analysis of the electrostatic structure of the localized wave pert...

Particle Acceleration and Wave Phenomena in the Auroral Region

1 I n t r o d u c t i o n The auroral region of the terrestrial magnetosphere is a fascinating part of space, and also a part that can be investigated in some detail with satellites, sounding rockets and groundbased instruments. The second EGS Alfv~n conference held in Stockholm May 3-7 1999 was devoted to auroral particle acceleration and related topics. This meeting produced a variety of inte...