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《Chinese Journal of Geophysics》 2005-01
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A numerical simulation study on the mechanism of interaction between CME and helmet streamer

HUANG Fu-Cheng 1, 2 1 Key Laboratory for Space Weather, Chinese Academy of Sciences, Beijing 100080, China 2 Graduate School of the Chinese Academy of Sciences, Beijing 100039, China  
On April 14, 1980, the spacecraft SMM observed the characteristic propagating of the CME eruption in the open magnetic field between two helmet streamers, and the distortion and deflection of the helmet streamer. In this paper, by using the 2 5-dimension MHD equations, the complicated process of the interaction between the CME and helmet streamer is studied through numerical simulation. The simulation result shows the characteristic propagating of this kind of CME, the distortion and deflection of the helmet streamer observed by spacecraft SMM, as well as the inverse effect of the axial component of the magnetic field inside the helmet streamer. This simulation result is also helpful for the study on the magnetic cloud and magnetic storm.
【Fund】: 国家自然科学基金项目 (4 0 3 3 60 5 3 )资助
【CateGory Index】: P353
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