Forced magnetic reconnection in a plasma sheet with localized resistivity profile excited by lower hybrid drift type instability

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/91JA00984· OSTI ID:5313186

Hoshino, M ^[1]

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1. Lawrence Livermore National Lab., CA (USA)

A forced magnetic reconnection process with a temporal evolution of resistivity is studied for a plasma sheet with a nonuniform resistivity profile based on the nonlocal mode structure of the lower hybrid drift type instability. The growth rate of the mode found is almost independent of the resistivity at the neutral sheet, but depends on the resistivity of the region of maximum density gradient away from the neutral sheet. The author studied this by using both a nonlinear numerical MHD simulation and a linear theory. The mode may be relevant to the prevalent theoretical concept of MHD reconnection and the localized anomalous resistivity profile based on the lower hybrid drift instability.

• OSTI ID: 5313186
• Journal Information: Journal of Geophysical Research; (United States), Vol. 96:A7; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PLASMA SHEET
MAGNETIC RECONNECTION
COMPUTERIZED SIMULATION
DRIFT INSTABILITY
ELECTRIC CONDUCTIVITY
INSTABILITY GROWTH RATES
MAGNETOHYDRODYNAMICS
NONLINEAR PROBLEMS
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ELECTRICAL PROPERTIES
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
MECHANICS
PHYSICAL PROPERTIES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
SIMULATION
640201* - Atmospheric Physics- Auroral
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& Magetospheric Phenomena