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Evolvement of microwave spike bursts in a solar flare on 2006 December 13
Tang, Jian-Fei1,2,3; Wu, De-Jin2; Wan, Jun-Lin1,4; Chen, Ling2; Tan, Cheng-Ming3
2021-08-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume21Issue:6Pages:10
AbstractSolar 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.
KeywordSun activity Sun flares Sun radio radiation
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS
DOI10.1088/1674-4527/21/6/148
WOS KeywordELECTRON-CYCLOTRON MASER ; RADIO SPIKES ; FINE-STRUCTURE ; ACCELERATION ; RADIATION ; SPECTROMETER ; RECONNECTION ; INSTABILITY ; CALIBRATION ; PULSATIONS
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Tianshan Youth fund ; Tianshan Youth fund ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS ; Key Laboratory of Solar Activity at National Astronomical Observatories, CAS
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000684228500001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76064
Collection中国科学院国家天文台
Corresponding AuthorTang, Jian-Fei
Affiliation1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210023, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
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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