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Alternative TitleNumerical Simulation of CME Initiation and Propagation From a Streamer Containing Nested Close Magnetic Field Structures
叶占银; 魏奉思; 王赤; 冯学尚; 钟鼎坤; 北京8701信箱
Source Publication空间科学学报
Keyword太阳风 日冕物质抛射 mhd方程组
Other AbstractCaualitative numerical result of a special type of Coronal Mass Ejection (CME) is pre-sented. The magnetic field direction in front half part of central closed magnetic field of the CME is opposite to that of the solar global dipole. Numerical result shows that: between the two anti-directional magnetic field lines of the CME magnetic field and the solar global dipole, there exists a transitional magnetic field structure, the area scale of which becomes gradually large when CME propagates outward. The numerical result may explain why spacecrafts can observe a type of bipolar magnetic cloud, in front half of which, the magnetic field direction is opposite to that of the solar global dipole. To obtain the numerical result, a background streamer with nested close magnetic field lines in it plays a central role for the CME initiation and propagation. The background steady state solution is approached by a long time interaction between a potential magnetic field and Parker solar wind solution. The potential magnetic field is obtained by properly combining a dipole and a hexapole. Because for the dipole, interaction between the potential magnetic field and solar wind can not open the dipole up and a streamer containing nested close magnetic field structures for triggering the CME at a suitable position forms finally.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author北京8701信箱
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GB/T 7714
叶占银,魏奉思,王赤,等. 嵌套闭磁场结构内CME产生和传播的数值模拟[J]. 空间科学学报,2005,25(4):241-247.
APA 叶占银,魏奉思,王赤,冯学尚,钟鼎坤,&北京8701信箱.(2005).嵌套闭磁场结构内CME产生和传播的数值模拟.空间科学学报,25(4),241-247.
MLA 叶占银,et al."嵌套闭磁场结构内CME产生和传播的数值模拟".空间科学学报 25.4(2005):241-247.
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