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The Evolution of Vector Magnetic Fields and the Origin of Coronal Mass Ejections (CMEs)

Published online by Cambridge University Press:  03 June 2005

Jun Zhang ,
Guiping Zhou  and
Jingxiu Wang
Jun Zhang
Affiliation:
National Astronomical Observatories Chinese, Academy of Sciences, Beijing 100012, China email: wjx@ourstar.bao.ac.cn; zhougp@ourstar.bao.ac.cn; zjun@ourstar.bao.ac.cn
Guiping Zhou
Affiliation:
National Astronomical Observatories Chinese, Academy of Sciences, Beijing 100012, China email: wjx@ourstar.bao.ac.cn; zhougp@ourstar.bao.ac.cn; zjun@ourstar.bao.ac.cn
Jingxiu Wang
Affiliation:
National Astronomical Observatories Chinese, Academy of Sciences, Beijing 100012, China email: wjx@ourstar.bao.ac.cn; zhougp@ourstar.bao.ac.cn; zjun@ourstar.bao.ac.cn
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Abstract

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Coronal mass ejections (CMEs) are intrinsically associated with magnetic structures and evolutions in the solar photosphere. Based on the analysis of vector magnetic field data, we found that: 1, magnetic flux cancellation is the most universal magnetic change in the course of CME onset; 2, new flux emergence also plays an important role in CME origination; 3, interaction and reconnection of flux systems with opposite sign helicity is another key element in the magnetism of CME initiation.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

Sun: magnetic fieldsSun: coronal mass ejections (CMEs)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS226 , September 2004 , pp. 184 - 193
Copyright
© 2005 International Astronomical Union