Experimental merging, coalescence, reconnection, and bouncing of two flux ropes

Details Experimental merging, coalescence, reconnection, and bouncing of two flux ropes Experimental merging, coalescence, reconnection, and bouncing of two flux ropes

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh41c..07i&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SH41C-07

Other

2723 Magnetic Reconnection (7526, 7835), 7524 Magnetic Fields, 7526 Magnetic Reconnection (2723, 7835), 7835 Magnetic Reconnection (2723, 7526)

Scientific paper

Dynamics of magnetic flux ropes are of fundamental importance to the Earth's magnetosphere, solar eruptions, and other astrophysical phenomena. In the solar plasmas, flux ropes that emerge through the convection zone may interact with the pre-existing flux ropes on the photosphere. The dynamics may be related to the eruption trigger mechanism. During the emerging process, only those with preferred amounts of twist can survive the interaction with surrounding plasmas. Although their total helicity is expected to remain conserved, the twist could be transferred into writhe via the kink instability. These magnetic reconnection events occurring in nature are three dimensional processes. However, most experimental efforts to understand reconnection have concentrated in two dimensions. There are few experiments concerning the merging of flux ropes, and our Reconnection Scaling Experiment is the only one with fully 3D geometry, that includes finite length flux ropes and adjustable boundary conditions between line tied and non line tied. We report the experimental results on the merging, coalescence, and bouncing, of two flux ropes for strong and moderate guide field.

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