A simplified numerical model of coronal energy dissipation based on reduced MHD
E. Buchlin, V. Aletti, S. Galtier, M. Velli, G. Einaudi, J. -C. Vial
Abstract
A 3D model intermediate between cellular automata (CA) models and the reduced magnetohydrodynamic (RMHD) equations is presented to simulate solar impulsive events generated along a coronal magnetic loop. The model consists of a set of planes distributed along a magnetic loop between which the information propagates through Alfven waves. Statistical properties in terms of power-laws for energies and durations of dissipative events are obtained, and their agreement with X-ray and UV flares observations is discussed. The existence of observational biases is also discussed.
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