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Simulation of small-scale coronal explosives due to magnetic reconnections
Fan QL(范全林); Feng XS(冯学尚); Xiang ZQ(向长青); Zhong DK(钟鼎坤); 北京8701信箱
Source PublicationPhysics of Plasmas
KeywordSolar Transition Region Anomalous Resistivity 2d Environment Current Sheets Events Atmosphere Mechanism Computer Islands Motion
AbstractThe dynamics of small-scale explosive phenomena in the lower corona have been simulated by solving the compressible magnetohydrodynamic equations. Numerical results show that the magnetic reconnections in a long coronal current sheet consist of a series of discrete small reconnection events, coalescence of magnetic islands, and plasmoid ejections, corresponding to the explosive events occurring intermittently and as bursts in a mentioned observational case. The generation of magnetic islands via multiple-X-point reconnection and their coalescence processes, to some extent, are qualitatively similar to the sequence of brightenings in the active region NOAA 8668. The strong ejections are possibly related to the recorded extreme ultraviolet (EUV) emitting structures. Morphological comparison and quantitative check of the plasma parameters support this candidate mechanism, and the idea that explosive events that appear to last long may not be single events, but a succession of explosive events either resolved or unresolved. The temporal energy conversion process is also examined.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Fan QL,Feng XS,Xiang ZQ,et al. Simulation of small-scale coronal explosives due to magnetic reconnections[J]. Physics of Plasmas,2003,10(11):4575-4578.
APA 范全林,冯学尚,向长青,钟鼎坤,&北京8701信箱.(2003).Simulation of small-scale coronal explosives due to magnetic reconnections.Physics of Plasmas,10(11),4575-4578.
MLA 范全林,et al."Simulation of small-scale coronal explosives due to magnetic reconnections".Physics of Plasmas 10.11(2003):4575-4578.
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