Explosive coalescence of magnetic islands

Details Explosive coalescence of magnetic islands Explosive coalescence of magnetic islands

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986itps...14..929t&link_type=abstract

IEEE Transactions on Plasma Science (ISSN 0093-3813), vol. PS-14, Dec. 1986, p. 929-933. NASA-NSF-DOE-supported research.

Physics

12

Coalescing, Magnetic Field Reconnection, Magnetohydrodynamic Stability, Collapse, Plasma Oscillations, Plasma Temperature, Solar Flares

Scientific paper

Simulation results from both the EM collisionless particle code and the MHD particle code reveal an explosive reconnection process associated with nonlinear evolution of the coalescence instability. The explosive coalescence is a self-similar process of magnetic collapse, and ensuing amplitude oscillations in the magnetic and electrostatic energies and temperatures are modeled by an equation of motion for the scale factor in the Sagdeev potential. This phenomenon may explain the rapid energy release of a certain class of solar flares during their impulsive phase.

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