Alfvenic Fluctuations in an Interplanetary Coronal Mass Ejection Observed Near 1 AU

	Alfvenic Fluctuations in an Interplanetary Coronal Mass Ejection Observed Near 1 AU
	Liang Haoming 1,2; Xiao Chijie 1,2; Zhou Guiping3 ; Pu Zuyin 1,2,4; Wang Honggang 1,2; Wang Xiaogang 1,2
刊名	PLASMA SCIENCE & TECHNOLOGY
	2012-02-01
卷号	14 期号:2 页码:102-106
关键词	coronal mass ejections magnetic cloud Alfven waves solar wind plasma
英文摘要	As for the present situation of coronal mass ejection (CME) triggering models, the distributions of Alfven waves in flux ropes are different from model to model, and thus examining those distributions in interplanetary coronal mass ejection (ICME) is an effective way to connect ICME observations with these theoretical models of CME triggering. However, previous observations of Alfvenic fluctuations in ICMEs were rare with locations ranging from 0.3 AU to 0.68 AU only, which is usually explained as rapid dissipation of those remnant waves. Here we present an observation of Alfven waves in a magnetic cloud (MC) near 1 AU, in situ detected by WIND in February 17 similar to 20, 2011. The MC was generated by a CME accompanied with the first X-class flare in the 24th solar cycle. The slope of the power spectral densities of magnetic fluctuation in the MC, are similar to those modes in ambient solar wind, but more anisotropic. The results will also be helpful for studies of CME theories and ICME thermodynamics.
收录类别	SCI
语种	英语
WOS记录号	WOS:000300788000004
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6215]
专题	国家天文台_太阳物理研究部
作者单位	1.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Liang Haoming,Xiao Chijie,Zhou Guiping,et al. Alfvenic Fluctuations in an Interplanetary Coronal Mass Ejection Observed Near 1 AU[J]. PLASMA SCIENCE & TECHNOLOGY,2012,14(2):102-106.
APA	Liang Haoming,Xiao Chijie,Zhou Guiping,Pu Zuyin,Wang Honggang,&Wang Xiaogang.(2012).Alfvenic Fluctuations in an Interplanetary Coronal Mass Ejection Observed Near 1 AU.PLASMA SCIENCE & TECHNOLOGY,14(2),102-106.
MLA	Liang Haoming,et al."Alfvenic Fluctuations in an Interplanetary Coronal Mass Ejection Observed Near 1 AU".PLASMA SCIENCE & TECHNOLOGY 14.2(2012):102-106.