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INITIATION AND EARLY DEVELOPMENT OF THE 2008 APRIL 26 CORONAL MASS EJECTION
Huang, J.1,2; Demoulin, P.2; Pick, M.2; Auchere, F.3; Yan, Y. H.1; Bouteille, A.2
2011-03-10
Source PublicationASTROPHYSICAL JOURNAL
Volume729Issue:2
AbstractWe present a detailed study of a coronal mass ejection (CME) with high temporal cadence observations in radio and extreme-ultraviolet (EUV). The radio observations combine imaging of the low corona with radio spectra in the outer corona and interplanetary space. The EUV observations combine the three points of view of the STEREO and SOHO spacecraft. The beginning of the CME initiation phase is characterized by emissions that are signatures of the reconnection of the outer part of the erupting configuration with surrounding magnetic fields. Later on, a main source of emission is located in the core of the active region. It is an indirect signature of the magnetic reconnection occurring behind the erupting flux rope. Energetic particles are also injected in the flux rope and the corresponding radio sources are detected. Other radio sources, located in front of the EUV bright front, trace the interaction of the flux rope with the surrounding fields. Hence, the observed radio sources enable us to detect the main physical steps of the CME launch. We find that imaging radio emissions in the metric range permits us to trace the extent and orientation of the flux rope which is later detected in interplanetary space. Moreover, combining the radio images at various frequencies with fast EUV imaging permits us to characterize in space and time the processes involved in the CME launch.
KeywordSun: Corona Sun: Coronal Mass Ejections (Cmes) Sun: Flares Sun: Radio Radiation
DOI10.1088/0004-637X/729/2/107
Indexed BySCI
Language英语
WOS IDWOS:000288608700030
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7921
Collection太阳物理研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Activ, Beijing 100012, Peoples R China
2.Observ Paris, CNRS, UMR 8109, LESIA, F-92195 Meudon, France
3.Univ Paris 11, Inst Astrophys Spatiale, CNRS, F-91405 Orsay, France
Recommended Citation
GB/T 7714
Huang, J.,Demoulin, P.,Pick, M.,et al. INITIATION AND EARLY DEVELOPMENT OF THE 2008 APRIL 26 CORONAL MASS EJECTION[J]. ASTROPHYSICAL JOURNAL,2011,729(2).
APA Huang, J.,Demoulin, P.,Pick, M.,Auchere, F.,Yan, Y. H.,&Bouteille, A..(2011).INITIATION AND EARLY DEVELOPMENT OF THE 2008 APRIL 26 CORONAL MASS EJECTION.ASTROPHYSICAL JOURNAL,729(2).
MLA Huang, J.,et al."INITIATION AND EARLY DEVELOPMENT OF THE 2008 APRIL 26 CORONAL MASS EJECTION".ASTROPHYSICAL JOURNAL 729.2(2011).
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