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Electron kinetic effects in switch‐off slow shocks
Author(s) -
Brackbill J. U.,
Vu H. X.
Publication year - 1993
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/93gl02243
Subject(s) - kinetic energy , electron , ion , shock wave , physics , atomic physics , shock (circulatory) , upstream and downstream (dna) , upstream (networking) , mechanics , computational physics , classical mechanics , nuclear physics , computer science , medicine , computer network , quantum mechanics
Numerical simulations of the slow‐mode switch‐off shock with kinetic electrons give significantly different results from hybrid simulations with fluid electrons. With appropriate downstream boundary conditions there results a more coherent and more strongly damped trailing magnetic wave with fewer back‐streaming ions than with the hybrid model under the same conditions. Evidently, kinetic effects cause a more equal sharing of shock‐induced entropy increases between ions and electrons, which results in lower ion temperatures downstream and greater electron energy transport from downstream to upstream.