NAOC Open IR  > 月球与深空探测研究部
The evolution of a complex solar radio burst corresponding to special configuration of microwave sources
Xie, Rx1; Ren, D. B.1; Liu, Y. Y.2
2007
发表期刊ADVANCES IN SPACE RESEARCH
卷号39期号:9页码:1474-1482
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.
关键词Sun Microwave Source Radio Continuum Radio Fine Structure Emission Mechanism
DOI10.1016/j.asr.2007.04.025
收录类别SCI
语种英语
WOS记录号WOS:000253588600021
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8967
专题月球与深空探测研究部
作者单位1.Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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Xie, Rx,Ren, D. B.,Liu, Y. Y.. 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, D. B.,&Liu, Y. Y..(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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