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太阳耀斑行星际激波传播中的追赶效应
Alternative TitleNUMERICAL SIMULATION OF PROPAGATION AND OVERLAP OF INTERPLANETARY SHOCK
顾惠成; 魏奉思; 吕建永; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication空间科学学报
1992
Volume12Issue:4Pages:240-251
ISSN0254-6124
Language中文
Keyword行星际激波 追赶效应
Abstract本文采用二维MHD模型对具有不同间隔时间的2个耀斑先后爆发,模拟研究它们所对应的行星际激波间的追赶效应,并和单个耀斑所产生的行星际激波相比较。研究结果表明,间隔时间一天以内的2个耀斑激波在行星际空间向外传播时,激波之间有明显的相互作用发生,间隔时间的长短决定了激波传播过程中追赶效应的强弱。根据数值试验结果,追赶效应可归纳为4类,(1)强追赶效应,(2)中等追赶效应,(3)弱追赶效应,(4)无追赶效应。属于强追赶效应的2个耀斑激波传播至1AU处,产生的行星际扰动非常相似于单个耀斑激波的扰动。
Other AbstractA time dependent,two-dimensional magn:tohydrodynamic model is used to simulate the flare-associated shock waves and their subsquent disturbances in equatorial plane between 0.1 AU and 1.1 AU.It is simulated that the shocks associated with a disturbed interplanetary medium by two flares,erupted one after with a delay of several hours.The result shows that interactions between shocks depends on the time interval of the two flares.These interactions can be classified into four types,(1) strong interaction,(2) middle interaction, (3) weak interaction, (4) no interaction, according to the interval of flares. Computations are carried out in two cases, (1) the shock wave associated with a single flare, (2) the shock wave associated with two flares which belong to strong interaction. The result shows that interplanetary magneric fields in first case are similar to those in the second case, 44 hours after the introduction of disturbances. The parameters of the solar wind measured at 1.0 AU along the flare normal also have the similar time profiles in the two cases.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1247
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
顾惠成,魏奉思,吕建永,等. 太阳耀斑行星际激波传播中的追赶效应[J]. 空间科学学报,1992,12(4):240-251.
APA 顾惠成,魏奉思,吕建永,&北京8701信箱.(1992).太阳耀斑行星际激波传播中的追赶效应.空间科学学报,12(4),240-251.
MLA 顾惠成,et al."太阳耀斑行星际激波传播中的追赶效应".空间科学学报 12.4(1992):240-251.
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