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Diagnosing a Solar Flaring Core with Bidirectional Quasi-periodic Fast Propagating Magnetoacoustic Waves
Miao,Yuhu1,2; Li,Dong3; Yuan,Ding1; Jiang,Chaowei1; Elmhamdi,Abouazza4; Zhao,Mingyu5; Anfinogentov,Sergey6
2021-02-01
Source PublicationThe Astrophysical Journal Letters
ISSN2041-8205
Volume908Issue:2
AbstractAbstract Quasi-periodic fast propagating (QFP) waves are often excited by solar flares, and could be trapped in the coronal structure with low Alfvén speed, so they could be used as a tool for diagnosing both the flaring core and magnetic waveguide. As the periodicity of a QFP wave could originate from a periodic source or be dispersively waveguided, it is a key parameter for diagnosing the flaring core and waveguide. In this paper, we study two QFP waves excited by a Geostationary Operational Environmental Satellite-class C1.3 solar flare occurring at active region NOAA 12734 on 2019 March 8. Two QFP waves were guided by two oppositely oriented coronal funnels. The periods of two QFP waves were identical and were roughly equal to the period of the oscillatory signal in the X-ray and 17 GHz radio emission released by the flaring core. It is very likely that the two QFP waves could be periodically excited by the flaring core. Many features of this QFP wave event are consistent with the magnetic tuning fork model. We also investigated the seismological application with QFP waves, and found that the magnetic field inferred with magnetohydrodynamic seismology was consistent with that obtained in the magnetic extrapolation model. Our study suggests that the QFP wave is a good tool for diagnosing both the flaring core and the magnetic waveguide.
KeywordActive solar corona Solar flares Solar oscillations Solar coronal waves Solar coronal seismology Magnetohydrodynamics Solar coronal heating
DOI10.3847/2041-8213/abdfce
Language英语
WOS IDIOP:2041-8205-908-2-abdfce
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/60785
Collection中国科学院国家天文台
Corresponding AuthorMiao,Yuhu
Affiliation1.Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, Guangdong 518055, People’s Republic of China miaoyuhu@hit.edu.cn, yuanding@hit.edu.cn
2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People’s Republic of China
3.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, CAS, Nanjing 210033, People’s Republic of China
4.Department of Physics and Astronomy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China
6.Institute of Solar-Terrestrial Physics, 664033, Irkutsk, Russia
Recommended Citation
GB/T 7714
Miao,Yuhu,Li,Dong,Yuan,Ding,et al. Diagnosing a Solar Flaring Core with Bidirectional Quasi-periodic Fast Propagating Magnetoacoustic Waves[J]. The Astrophysical Journal Letters,2021,908(2).
APA Miao,Yuhu.,Li,Dong.,Yuan,Ding.,Jiang,Chaowei.,Elmhamdi,Abouazza.,...&Anfinogentov,Sergey.(2021).Diagnosing a Solar Flaring Core with Bidirectional Quasi-periodic Fast Propagating Magnetoacoustic Waves.The Astrophysical Journal Letters,908(2).
MLA Miao,Yuhu,et al."Diagnosing a Solar Flaring Core with Bidirectional Quasi-periodic Fast Propagating Magnetoacoustic Waves".The Astrophysical Journal Letters 908.2(2021).
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