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Possible radio precursors/signatures of the CMEs onset: radio type III bursts and fine structures in the centimeter-metric wavelength region
Wang M(汪敏)1; Gao GN(高冠男)1; Xie RX(谢瑞祥)1; Tan, CM2; Wang, M (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2011-05
Volume11Issue:5Pages:607-616
DOI10.1088/1674-4527/11/5/010
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Radio Burst Radio Fine Structure Coronal Mass Ejection
AbstractSeventy-one occurrences of coronal mass ejections (CMEs) associated with radio bursts, seemingly associated with type III bursts/fine structures (FSs), in the centimeter-metric frequency range during 2003-2005, were obtained with the spectrometers at the National Astronomical Observatories, Chinese Academy of Sciences (NAOC) and the Culgoora radio spectrometer and are presented. The statistical results of 68 out of 71 events associated with the radio type III bursts or FSs during the initiation or early stages of the CMEs indicate that most CMEs contain the emissions of radio type III bursts/FSs near the time of the CME's onset, in spite of their fast or slow speeds. Therefore, we propose that type III bursts and FSs are possible precursors of the onset of CMEs. We stress that the radio type III bursts/FSs in the centimeter-metric wavelength region and the CME transients possibly occurred in conjunction with the origin of the coronal precursor structures. Thus, the statistical results support the suggestions that type III bursts/FSs are indicators of extra energy input into the corona at the CMEs' onset, and that the type III bursts/FSs are produced primarily due to a coronal instability which eventually triggers the CME process. This may signify that the centimeter-metric radio bursts corresponding to or near the CME's onset are caused by the disturbed corona (possibly including minor magnetic reconnections).
Funding OrganizationMOST [2011CB811403] ; CAS-NSFC [10978006]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1674-4527
URL查看原文
Archive Date2011-12-16
WOS IDWOS:000290844200010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; IMPULSIVE ELECTRON EVENTS ; SOLAR MICROWAVE-BURSTS ; X-RAY ; ENERGY-RELEASE ; FLARES ; RECONNECTION ; SIGNATURES ; MODEL ; ACCELERATION
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5622
Collection射电天文研究组
Corresponding AuthorWang, M (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang M,Gao GN,Xie RX,et al. Possible radio precursors/signatures of the CMEs onset: radio type III bursts and fine structures in the centimeter-metric wavelength region[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(5):607-616.
APA Wang M,Gao GN,Xie RX,Tan, CM,&Wang, M .(2011).Possible radio precursors/signatures of the CMEs onset: radio type III bursts and fine structures in the centimeter-metric wavelength region.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(5),607-616.
MLA Wang M,et al."Possible radio precursors/signatures of the CMEs onset: radio type III bursts and fine structures in the centimeter-metric wavelength region".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.5(2011):607-616.
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