A Model of a Single-Loop Flare: Disruption of a Magnetic Flux Tube Driven by Collision of Two Moving Solitary Magnetic Kinks

Details A Model of a Single-Loop Flare: Disruption of a Magnetic Flux Tube Driven by Collision of Two Moving Solitary Magnetic Kinks A Model of a Single-Loop Flare: Disruption of a Magnetic Flux Tube Driven by Collision of Two Moving Solitary Magnetic Kinks

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...576..519s&link_type=abstract

The Astrophysical Journal, Volume 576, Issue 1, pp. 519-532.

Astronomy and Astrophysics

Astronomy

5

Magnetic Fields, Methods: Numerical, Magnetohydrodynamics: Mhd, Plasmas, Sun: Flares

Scientific paper

We propose a new model of a single-loop flare based on the fact that a magnetic flux tube with axial current can be explosively disrupted during collision of two moving solitary magnetic kinks (MoSMaKs). The concept of the MoSMaK found by three-dimensional MHD simulation is characterized as a moving solitary magnetic flux ring with a pair of counterrotating vortex rings. We investigate the collision process of two MoSMaKs along a slightly bent magnetic flux tube with axial current. We find that the magnetic flux tube can be explosively disrupted during the collision of two MoSMaKs. It is shown that current sheets appear where high-energy particles can be generated through magnetic reconnection. About 20% of the magnetic field energy can be converted to the kinetic energy of upward plasma motions during the disruption of the magnetic flux tube. We apply the collision process of the MoSMaKs to a single-loop flare.

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