Diagnosing a Solar Flaring Core with Bidirectional Quasi-periodic Fast Propagating Magnetoacoustic Waves
文献类型：期刊论文
| 作者 | Miao,Yuhu2,3; Li,Dong4; Yuan,Ding3; Jiang,Chaowei3; Elmhamdi,Abouazza5; Zhao,Mingyu6; Anfinogentov,Sergey1 |
| 刊名 | The Astrophysical Journal Letters
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 908期号:2 |
| ISSN号 | 2041-8205 |
| 关键词 | Active solar corona Solar flares Solar oscillations Solar coronal waves Solar coronal seismology Magnetohydrodynamics Solar coronal heating |
| DOI | 10.3847/2041-8213/abdfce |
| 英文摘要 | Abstract 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. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:2041-8205-908-2-ABDFCE |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/60784]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Miao,Yuhu |
| 作者单位 | 1.Institute of Solar-Terrestrial Physics, 664033, Irkutsk, Russia 2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People’s Republic of China 3.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 4.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, CAS, Nanjing 210033, People’s Republic of China 5.Department of Physics and Astronomy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia 6.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China |
| 推荐引用方式 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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来源：国家天文台
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