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Spatial and temporal scales of coronal magnetic restructuring in CME initiation

Published online by Cambridge University Press:  01 November 2006

Yayuan Wen ,
Jingxiu Wang ,
Dalmiro Joreg Filipe Maia ,
Yuzong Zhang  and
Hui Zhao
Yayuan Wen
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: yayuanwen@ourstar.bao.ac.cn
Jingxiu Wang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: yayuanwen@ourstar.bao.ac.cn
Dalmiro Joreg Filipe Maia
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: yayuanwen@ourstar.bao.ac.cn CICGE, Observatório Astronómico Professor Manuel de Barros, Faculdade de Ciências da Universidade do Porto, 4430-146 Vila Nova de Gaia, Portugal
Yuzong Zhang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: yayuanwen@ourstar.bao.ac.cn
Hui Zhao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: yayuanwen@ourstar.bao.ac.cn
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Abstract

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Based on the concept that the CMEs are the results of coronal magnetic restructuring or reconfiguring, we analyze the December 18, 2000 event by using Nançay Radioheliograph (NRH) images and combining the multi-spatial scale observations. We investigated the onset, duration and position of the radio emissions in relation to EUV dimming and the inferred CME onset, with the purpose to estimate the spatial and temporal scales of the coronal restructuring, thus, to understand the physics of the initiation and development of the CME.

Keywords

Sun:coronal mass ejections (CMEs)Sun:radio radiation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S233: Solar Activity and its Magnetic Origin , March 2006 , pp. 423 - 424
Copyright
© 2006 International Astronomical Union