The interplanetary responses to the great solar activities in late October 2003

	The interplanetary responses to the great solar activities in late October 2003
	Wang, YM ; Ye, PZ ; Zhou, GP; Wang, SJ; Wang, S ; Yan, YH; Wang, JX
刊名	SOLAR PHYSICS
	2005-02-01
卷号	226 期号:2 页码:337-357
英文摘要	Based on the observations of the Sun and the interplanetary medium, a series of solar activities in late October 2003 and their consequences are studied comprehensively. Thirteen X-ray flares with importance greater than M-class, six frontside halo coronal mass ejections (CMEs) with span angle larger than 100 degrees. and three associated eruptions of filament materials are identified by examining lots of solar observations from October 26 to 29. All these flares were associated with type III radio bursts, all the frontside halo CMEs were accompanied by type II or type II-like radio bursts. Particularly, among these activities, two major solar events caused two extraordinary enhancements ( exceeding 1000 particles/(cm(2) s(-1) ster(-1) Mev(-1)) of solar energetic particle (SEP) flux intensity near the Earth, two large ejecta with fast shocks preceding, and two great geomagnetic storms with Dst peak value of - 363 and - 401 nT, respectively. By using a cross correlation technique and a force-free cylindrical flux rope model, the October 29 magnetic cloud associated with the largest CME are analyzed, including its orientation and the sign of its helicity. It is found that the helicity of the cloud is negative, contrary to the regular statistical pattern that negative- and positive-helical interplanetary magnetic clouds would be expected to come from northern and southern solar hemisphere. Moreover, the relationship between the orientation of magnetic cloud and associated filament is discussed. In addition, some discussion concerning multiple-magnetic-cloud structures and SEP events is also given.
收录类别	SCI
语种	英语
WOS记录号	WOS:000229188200009
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8152]
专题	国家天文台_太阳物理研究部
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China 2.Natl Astron Observ China, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Wang, YM,Ye, PZ,Zhou, GP,et al. The interplanetary responses to the great solar activities in late October 2003[J]. SOLAR PHYSICS,2005,226(2):337-357.
APA	Wang, YM.,Ye, PZ.,Zhou, GP.,Wang, SJ.,Wang, S.,...&Wang, JX.(2005).The interplanetary responses to the great solar activities in late October 2003.SOLAR PHYSICS,226(2),337-357.
MLA	Wang, YM,et al."The interplanetary responses to the great solar activities in late October 2003".SOLAR PHYSICS 226.2(2005):337-357.