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Nakamura & Fujimoto 2005
Nakamura, T.K.M. and Fujimoto, M. (2005). Magnetic reconnection within rolled-up MHD-scale Kelvin-Helmholtz vortices: Two-fluid simulations including finite electron inertial effects. Geophysical Research Letters 32: doi: 10.1029/2005GL023362. issn: 0094-8276.

We have performed two-dimensional two-fluid simulations including finite electron inertial effects to investigate the cross-scale coupling in the evolution of MHD-scale Kelvin-Helmholtz (KH) mode. We focus on the model in which density is uniform and only the in-plane magnetic field component is present. The effects of the velocity jump across the shear layer and those of the variation of the magnetic field intensity across the shear layer are considered. When the shear is strong enough to make a KH vortex highly rolled-up, within-the-vortex reconnection is seen to play crucial roles in determining the structure of the large-scale vortex itself. Especially when the magnetic field intensity is significantly unbalanced across the shear layer, injection of a magnetic bubble is seen to result from the reconnection process.

BACKGROUND DATA FILES

Abstract

Keywords
Magnetospheric Physics, Magnetopause and boundary layers, Magnetospheric Physics, MHD waves and instabilities (2149, 6050, 7836), Space Plasma Physics, Magnetic reconnection (2723, 7526), Space Plasma Physics, Transport processes
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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