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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
2005-02-01
发表期刊SOLAR PHYSICS
卷号226期号:2页码:337-357
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.
DOI10.1007/s11207-005-6877-2
收录类别SCI
语种英语
WOS记录号WOS:000229188200009
引用统计
被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8152
专题太阳物理研究部
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
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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.
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