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Evolvement of microwave spike bursts in a solar flare on 2006 December 13

文献类型：期刊论文

作者Tang, Jian-Fei2,3,4; Wu, De-Jin3; Wan, Jun-Lin1,4; Chen, Ling3; Tan, Cheng-Ming2
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2021-08-01
卷号21期号:6页码:10
关键词Sun activity Sun flares Sun radio radiation
ISSN号1674-4527
DOI10.1088/1674-4527/21/6/148
通讯作者Tang, Jian-Fei(jftang@xao.ac.cn)
英文摘要Solar radio spikes are one of the most intriguing spectral types of radio bursts. Their very short lifetimes, small source size and super-high brightness temperature indicate that they should be involved in some strong energy release, particle acceleration and coherent emission processes closely related to solar flares. In particular, for the microwave spike bursts, their source regions are much close to the related flaring source region which may provide the fundamental information of the flaring process. In this work, we identify more than 600 millisecond microwave spikes which recorded by the Solar Broadband Radio Spectrometer in Huairou (SBRS/Huairou) during an X3.4 solar flare on 2006 December 13 and present a statistical analysis about their parametric evolution characteristic. We find that the spikes have nearly the same probability of positive and negative frequency drifting rates not only in the flare rising phase, but also in the peak and decay phases. So we suppose that the microwave spike bursts should be generated by shock-accelerated energetic electrons, just like the terminational shock (TS) wave produced by the reconnection outflows near the loop top. The spike bursts occurred around the peak phase have the highest central frequency and obviously weak emission intensity, which imply that their source region should have the lowest position with higher plasma density due to the weakened magnetic reconnection and the relaxation of TS during the peak phase. The right-handed polarization of the most spike bursts may be due to the TS lying on the top region of some very asymmetrical flare loops.
WOS关键词ELECTRON-CYCLOTRON MASER ; RADIO SPIKES ; FINE-STRUCTURE ; ACCELERATION ; RADIATION ; SPECTROMETER ; RECONNECTION ; INSTABILITY ; CALIBRATION ; PULSATIONS
资助项目National Natural Science Foundation of China[11673055] ; National Natural Science Foundation of China[41531071] ; National Natural Science Foundation of China[11873018] ; National Natural Science Foundation of China[11773061] ; National Natural Science Foundation of China[11790301] ; National Natural Science Foundation of China[11973057] ; Tianshan Youth fund[2017Q401] ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; [2018-XBQNXZ-A-009] ; [2017-XBQNXZ-A-007]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000684228500001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构National Natural Science Foundation of China ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS
源URL[http://ir.xao.ac.cn/handle/45760611-7/4221]  
专题研究单元未命名
通讯作者Tang, Jian-Fei
作者单位1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100101, Peoples R China
3.Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210023, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Jian-Fei,Wu, De-Jin,Wan, Jun-Lin,et al. Evolvement of microwave spike bursts in a solar flare on 2006 December 13[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(6):10.
APA Tang, Jian-Fei,Wu, De-Jin,Wan, Jun-Lin,Chen, Ling,&Tan, Cheng-Ming.(2021).Evolvement of microwave spike bursts in a solar flare on 2006 December 13.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(6),10.
MLA Tang, Jian-Fei,et al."Evolvement of microwave spike bursts in a solar flare on 2006 December 13".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.6(2021):10.

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来源：新疆天文台

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