Physics – Plasma Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3223102t&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 23, CiteID L23102
Physics
Plasma Physics
4
Space Plasma Physics: Magnetic Reconnection (2723, 7526), Space Plasma Physics: Mhd Waves And Instabilities (2149, 2752, 6050), Solar Physics, Astrophysics, And Astronomy: Flares
Scientific paper
We have performed three-dimensional MHD simulations of magnetic reconnection to investigate the structure of a reconnection jet. Our simulation results show that the leading edge of a reconnection jet deforms to put on a significantly complicated structure. In a randomly perturbed environment, smaller scale structure develops rapidly and finally the front of the reconnection jet becomes turbulent. In contrast when the initial perturbation is composed of a single sinusoidal mode, coherent magnetic bubbles are generated. The magnetic bubbles elongate significantly when the wavelength is small giving onset to a secondary instability that may subsequently lead to turbulence. We interpret the deformation of the jet front to be due to excitation of the Rayleigh-Taylor/ballooning-like instability and emphasize the significance of the three-dimensionality in considering the dynamics of a reconnection jet.
Fujimoto Masaki
Tandokoro Ryoji
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