Effects of Physical Features in the Solar Atmosphere on the Coronal Mass Ejection Evolution

Based on time-dependent MHD simulation, we investigate how physical features in the solar atmosphere affect the evolution of coronal mass ejections (CMEs). It is found that temperature and density play a crucial role in CME initiation. We argue that lower temperature facilitates the catastrophe'...

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Bibliographic Details
Published inThe Astrophysical journal Vol. 728; no. 1; pp. 21 - jQuery1323911184239='48'
Main Authors Zhang, Y. Z, Feng, X. S, Song, W. B
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 10.02.2011
IOP
Subjects
Astronomy
Earth, ocean, space
Exact sciences and technology
Sun: atmosphere
MHD model
Coronal mass ejection
Digital simulation
Sun: coronal mass ejections (CMEs)
Sun: evolution
Solar atmosphere
Sun
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Summary:Based on time-dependent MHD simulation, we investigate how physical features in the solar atmosphere affect the evolution of coronal mass ejections (CMEs). It is found that temperature and density play a crucial role in CME initiation. We argue that lower temperature facilitates the catastrophe's occurrence, and that the CMEs which initiate in low density could gain lower velocity. In our numerical experiment, by employing different values of Delta *b, the resulting eruptions of either slow or fast events may be obtained.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/728/1/21