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Numerical Simulation of the Explosive Events in the Solar Atmosphere

Published online by Cambridge University Press:  12 April 2016

Shu-Ping Jiu*
Affiliation:
Department of Earth and Space Science, University of Science and Technology of China, Hefei, Anhui, People’s Republic of China

Abstract

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Explosive events are the earliest indicators of flare activity and potentially predict the imminent occurrence of a flare at a specific location. They are highly energetic small-scale phenomena which are frequently detected throughout the quiet and active sun. The observations show that explosive events are related to emerging magnetic flux and tend to occur on the edges of high photospheric magnentic field regions. The cancellation of photospheric magnetic flux are the manifestation of explosive events, so that they are identified as the magnetic reconnection of flux elements. We assume that emerging flux are convected to the network boundaries with the typical velocity of intranetwork elements. Two-dimension (2D) compressible MHD simulations are performed to explore the reconnection process between emerging intranework flux and network field. The numerical results clearly show the cancellation of magnetic flux and the acceleration of the plasma flow.

Type
Session 2. Theory of Active Region Structure
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Dere, K.P., Bartoe, J.-D.F., Brueckner, G.E., et al., 1991, J. Geophys. Res., 96, 9399.CrossRefGoogle Scholar
Hu, Y-Q., 1989, J. Comput. Phys., 84, 441.CrossRefGoogle Scholar
Ip, W.-H. and Jin, S.-P., 1991, Geophys. Res. Lett., 18, 1497.Google Scholar
Jin, S.-P. and Ip, W.-H., 1991. Phys. Fluids, 3, 1927.Google Scholar