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The evolution of a complex solar radio burst corresponding to special configuration of microwave sources
Xie RX(谢瑞祥)1; Ren DB(任冬柏)1; Liu, YY2; Xie, R (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊ADVANCES IN SPACE RESEARCH
2007
卷号39期号:9页码:1474-1482
DOI10.1016/j.asr.2007.04.025
产权排序第1完成单位
收录类别SCI ; EI
关键词Sun Microwave Source Radio Continuum Radio Fine Structure Emission Mechanism
摘要A complex radio burst associated with periodic (similar to 1 and 6 min) pulsations and several kinds fine structures, e.g., normal- and reverse-drifting type III bursts, zebra patterns, and slowly drifting structure was observed with the radio spectrometers (1.0-2.0, 2.6-3.8, 5.2-7.6, and 0.65-1.5 GHz) at the National Astronomical Observatories of China (NAOC) in Beijing and Yunnan on 19 October 2001. In combination with the images of 17 and 34 GHz from NoRH and the magnetograms from MDI we reveal the existence and evolution of preexisting and new emerging sources, and find the horseshoe-shaped structure of microwave sources intensity during the late phase of the burst. Through the detailed comparison of the evolution of each source with the time profiles of radio bursts corresponding to these sources we indicate that the intimate correlation between the microwave sources evolution and the generation of the radio burst associated fine structures. Some fine structures can be considered as the MHD turbulence and plasma emission mechanism, based on the anisotropic beam instability and hybrid waves generations. From the characteristics of observations we may presume that the coronal magnetic structures should contain an extended coronal loop system and multiple discrete electrons acceleration/injection sites. The mechanisms of this complex radio burst are deal with the incoherent gyrosynchrotron emission from the trapped electrons and the coherent plasma emission from the non trapped electrons. (C) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved.
语种英语
学科领域Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
文章类型Article
ISSN0273-1177
URL查看原文
归档日期2007-11-26
WOS记录号WOS:000253588600021
WOS研究方向Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
关键词[WOS]MAGNETIC RECONNECTION ; ELECTRON-BEAMS ; RING STRUCTURE ; CORONAL LOOPS ; FLARE ; EMISSION ; MODEL ; WAVELENGTH ; GHZ
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5617
专题射电天文研究组
通讯作者Xie, R (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
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GB/T 7714
Xie RX,Ren DB,Liu, YY,et al. The evolution of a complex solar radio burst corresponding to special configuration of microwave sources[J]. ADVANCES IN SPACE RESEARCH,2007,39(9):1474-1482.
APA Xie RX,Ren DB,Liu, YY,&Xie, R .(2007).The evolution of a complex solar radio burst corresponding to special configuration of microwave sources.ADVANCES IN SPACE RESEARCH,39(9),1474-1482.
MLA Xie RX,et al."The evolution of a complex solar radio burst corresponding to special configuration of microwave sources".ADVANCES IN SPACE RESEARCH 39.9(2007):1474-1482.
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