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Are homologous radio bursts driven by solar post-flare loops?
Wang M(汪敏)1; Xie RX(谢瑞祥)1; Yan, YH2; Liu, YY2; Wang, M (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2007
Volume7Issue:4Pages:477-486
DOI10.1088/1009-9271/7/4/02
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun : Radio Radiation Sun : Magnetic Fields
AbstractThree particularly complex radio bursts (2001 October 19, 2001 April 10 and 2003 October 26) obtained with the spectrometers (0.65-7.6GHz) at the National Astronomical Observatories, Chinese Academy of Sciences (NAOC, Beijing and Yunnan) and other instruments (NoRH, TRACE and SXT) are presented. They each have two groups of peaks occurring in different frequency ranges (broad-band microwave and narrow-band decimeter wavelengths). We stress that the second group of burst peaks that occurred in the late phase of the flares and associated with post-flare loops may be homologous radio bursts. We think that they are driven by the post-flare loops. In contrast to the time profiles of the radio bursts and the images of coronal magnetic polarities, we are able to find that the three events are caused by the active regions including main single-bipole magnetic structures, which are associated with multipole magnetic structures during the flare evolutions. In particular, we point out that the later decimetric radio bursts are possibly the radio counterparts of the homologous flares (called "homologous radio bursts" by us), which are also driven by the single-bipole magnetic structures. By examining the evolutions of the magnetic polarities of sources (17 GHz), we could presume that the drivers of the homologous radio bursts are new and/or recurring appearances/disappearances of the magnetic polarities of radio sources, and that the triggers are the magnetic reconnections of single-bipole configurations.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2007-09-12
WOS IDWOS:000249365900002
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTION ; MAGNETIC RECONNECTION ; EMERGING FLUX ; MODEL ; CONFIGURATION ; ACCELERATION ; BRIGHTENINGS ; EMISSION ; EVENTS ; FIELD
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5618
Collection射电天文研究组
Corresponding AuthorWang, M (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang M,Xie RX,Yan, YH,et al. Are homologous radio bursts driven by solar post-flare loops?[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(4):477-486.
APA Wang M,Xie RX,Yan, YH,Liu, YY,&Wang, M .(2007).Are homologous radio bursts driven by solar post-flare loops?.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(4),477-486.
MLA Wang M,et al."Are homologous radio bursts driven by solar post-flare loops?".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.4(2007):477-486.
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