Abstract

We present the result of magnetohydrodynamic simulations of magnetic flux emergence in the solar atmosphere. Magnetic flux emergence is the origin of sunspots and active regions, and often associated with solar flares and coronal mass ejections. Owing to the high-resolution achieved by the Earth Simulator, we could simulate the formation of turbulent, fine structures in the emerging flux region as a result of global dynamics. Our simulation results naturally explain many observed features such as arch filament system and intermittent coronal heating.

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