Post-Eruption Arcades and Interplanetary Coronal Mass Ejections

被引：0
|
作者：
S. Yashiro
N. Gopalswamy
P. Mäkelä
S. Akiyama
机构：
[1] The Catholic University of America,
[2] NASA Goddard Space Flight Center,undefined
来源：
Solar Physics | 2013年 / 284卷
关键词：
Flares; Coronal mass ejections; Posteruption arcades; Flux rope; Magnetic cloud;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We compare the temporal and spatial properties of posteruption arcades (PEAs) associated with coronal mass ejections (CMEs) at the Sun that end up as magnetic cloud (MC) and non-MC events in the solar wind. We investigate the length, width, area, tilt angle, and formation time of the PEAs associated with 22 MC and 29 non-MC events and we find no difference between the two populations. According to current ideas on the relation between flares and CMEs, the PEA is formed together with the CME flux-rope structure by magnetic reconnection. Our results indicate that at the Sun flux ropes form during CMEs in association with both MC and non-MC events; however, for non-MC events the flux-rope structure is not observed in the interplanetary space because of the geometry of the observation, i.e. the location of the spacecraft when the structure passes through it.
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页码：5 / 15
页数：10
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