Coronal "wave":: A signature of the mechanism making CMEs largescale in the low corona?

被引：40

作者：

Attrill, G. D. R.

Harra, L. K.

van Driel-Gesztelyi, L.

Demoulin, P.

Wuelser, J.-P.

机构：

[1] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[2] CNRS, Observ Paris, LESIA, UMR 8109, F-92195 Meudon, France

[3] Konkoly Observ Budapest, H-1525 Budapest, Hungary

[4] Lockheed Martin Solar & Astrophys Lab, Div Res & Dev, Palo Alto, CA 94304 USA

来源：

ASTRONOMISCHE NACHRICHTEN | 2007年 / 328卷 / 08期

基金：

英国科学技术设施理事会;

关键词：

Sun : corona; Sun : coronal mass ejections (CMEs); Sun : magnetic fields; Sun : UV radiation;

D O I：

10.1002/asna.200710794

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyse one of the first coronal waves observed by STEREO/EUVI associated with a source region just behind the limb, NOAA 10940. We apply the coronal "wave" model proposed by Attrill et al. (2007) to explain the evolution of the observed bright fronts, thereby arguing that the bright fronts and dimmings are due to magnetic reconnections between the expanding CME core and surrounding magnetic structures. We offer a discussion showing that this model provides a mechanism via which CMEs, expanding from a small source region can naturally become large-scale in the low corona. (c) 2007 WILEY-VCH Verlag GmbH&Co. KGaA, Weinheim.

引用

页码：760 / 763

页数：4

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