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Title: Final Technical Report ''Double discontinuities in space plasma''

This research used high-resolution magnetic field data to examine the interior structures of MHD shocks in interplanetary space and in the magnetotail; we discovered that a slow-mode shock is often followed by an adjoining rotational discontinuity layer on the postshock side. The thickness of each layer is of the order of a few ion inertial lengths. Such a compound structure is known as a double discontinuity. When the magnetic field rotates by several degrees per ion inertial length inside a thin layer, the Hall current term becomes important in the generalized Ohm's law. Steady state solutions based on the Hall-MHD theory have been obtained to show the merging of a rotational layer and a slow shock layer to form a compound structure like the observed double discontinuities.
Authors:
Publication Date:
OSTI Identifier:
823765
Report Number(s):
DOE/ER/54582-1
TRN: US0402486
DOE Contract Number:
FG02-00ER54582
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 13 May 2004
Research Org:
Catholic University of America (US)
Sponsoring Org:
USDOE Office of Science (SC) (US)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; INTERPLANETARY SPACE; MAGNETIC FIELDS; MAGNETOTAIL; PLASMA; THICKNESS HIGH-RESOLUTION MAGNETIC FIELD DATA; MHD SHOCKS; DOUBLE DISCONTINUITY; HALL-MHD THEORY