Other
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.6487s&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 90, July 1, 1985, p. 6487-6496.
Other
39
Magnetohydrodynamic Flow, Plasma Density, Polar Regions, Solar Wind, Supersonic Flow, Particle Acceleration, Polarization (Charge Separation), Shock Waves, Space Plasmas
Scientific paper
The time-dependent continuity and momentum equations for H(+) are solved in order to study the temporal evolution of density perturbations in the supersonic, collisionless polar wind. The results indicate that the sophisticated computer models of small-scale plasma expansions are indeed applicable to large-scale flow problems. The important prediction of the production of superthermal ions from small-scale simulations by the process of plasma expansion is borne out by the calculations in this paper. Energetic ions are produced for each type of density perturbation through the plasma expansion process. In the case of an extended density depletion, the forward-reverse shock pair forms when the depletion is very strong, but otherwise only the forward shock forms. In the case of localized density depletions, the density cavity evolves into two rarefaction waves joined by a forward-reverse shock pair. In the case of localized density enhancements, the shock pair evolves from compressive waves.
Schunk Robert W.
Singh Navinder
No associations
LandOfFree
Temporal behavior of density perturbations in the polar wind does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Temporal behavior of density perturbations in the polar wind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temporal behavior of density perturbations in the polar wind will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1232382