Physics
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.1167s&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, Feb. 1, 1992, p. 1167-1179.
Physics
11
Equatorial Regions, Ionospheric Ion Density, Plasmasphere, Trapped Particles, Ionospheric Heating, Satellite Observation, Wave-Particle Interactions
Scientific paper
The kinetic aspects of shock formation in response to the equatorial heating of ions are reported by means of small-scale kinetic simulations of countersteaming plasma flows along a spatially varying magnetic field having the features of the dipolar magnetic field lines. Attention is given to the trapping of the field-aligned flowing ions in response to the simulated equatorial heating of ions and the associated self-consistent structures in the electric potentials and the f-plasma flow pattern. Trapping is found to lead to the formation of electrostatic shocks, which propagate away from the 'equator' as seen in the hydrodynamic model of Singh and Torr (1990). The shocks form near the mirror points of the 'equatorially' heated ions. The second stage of the refilling with equatorially trapped ions is reported. A variety of structures in density and temperature distributions as the refilling proceeds slowly is found.
Chan Benny. C.
Singh Nagendra
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