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|Title:||Numerical simulation of magnetic reconnection and plasmoid dynamics in the geotail|
Lakhina, G S
|Abstract:||The time evolution of the geotail is represented by a set of single fluid magnetohydrodynamic (MHD) equations. The initial equilibrium is allowed to be destroyed by a finite, but very small electric resistivity, so that the fluid is still an almost ideal MHD system. The subsequent evolution of the geotail is investigated by a two-dimensional numerical code. The onset of reconnection and formation of magnetic island-like structures called plasmoids are reproduced. The velocity pattern and the size of plasmoid are investigated under different initial conditions and are compared with actual observations in space.|
|ISSN:||0975-105X (Online); 0367-8393 (Print)|
|Appears in Collections:||IJRSP Vol.31(4) [August 2002]|
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