Physics
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13..253r&link_type=abstract
Advances in Space Research, Volume 13, Issue 4, p. 253-257.
Physics
Scientific paper
We present the results of self-consistent one-dimensional hybrid code (kinetic ions, fluid electrons) simulations of a dipolarizing field reversal. Local ion energization processes are studied in terms of both the ion kinetics and bulk plasma behaviour. We demonstrate evolution of the system through two phases: 1) A quasi-static `trapping' phase, during which inflowing ions are trapped in the reversal structure at early times 2) A dynamic `escape' phase, during which trapped ions escape from the reversal after an increase in P. We have identified a characteristic signature in the magnetic field and bulk plasma parameters associated with this behaviour. Our results are applicable for times earlier than the time taken for an Alfvén wave to travel from the tail centre plane to the ionosphere.
Chapman Sandra C.
Richardson Alan
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