Flare quasi-periodic pulsation associated with recurrent jets
文献类型：期刊论文
| 作者 | Li, Dong; Shi, Fanpeng; Zhao, Haisheng ; Xiong, Shaolin; Song, Liming; Peng, Wenxi; Li, Xinqiao; Chen, Wei; Ning, Zongjun
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| 刊名 | FRONTIERS IN ASTRONOMY AND SPACE SCIENCES
 |
| 出版日期 | 2022 |
| 卷号 | 9页码:1032099 |
| 关键词 | Sun: flares Sun: oscillations Sun: UV emission Sun: X-ray emission Sun: radio emission MHD waves |
| DOI | 10.3389/fspas.2022.1032099 |
| 文献子类 | Article |
| 英文摘要 | Quasi-periodic pulsations (QPPs), which carry time features and plasma characteristics of flare emissions, are frequently observed in light curves of solar/stellar flares. In this study, we investigated non-stationary QPPs associated with recurrent jets during an M1.2 flare on 2022 July 14. A quasi-period of similar to 45 +/- 10 s, determined by the wavelet transform technique, is simultaneously identified at wavelengths of soft/hard X-ray and microwave emissions, which are recorded by the Gravitational Wave High- Energy Electromagnetic Counterpart All-sky Monitor, Fermi and the Nobeyama Radio Polarimeters, respectively. A group of recurrent jets with an intermittent cadence of about 45 +/- 10 s are found in the Atmospheric Imaging Assembly (AIA) image series at 304 angstrom, but they are 180 s earlier than the flare QPP. All observational facts suggest that the flare QPPs could be excited by recurrent jets, and they should be associated with non-thermal electrons that are periodically accelerated by a repeated energy release process, such as repetitive magnetic reconnection. Moreover, the same quasi-period is discovered at double footpoints connected by a hot flare loop in AIA 94 angstrom, and the phase speed is measured to be similar to 1,420 km s(-1). Based on the differential emission measure, the average temperatures, number densities, and magnetic field strengths at the loop top and footpoint are estimated to be similar to 7.7/6.7 MK, similar to 7.5/3.6 x 10(10) cm(-3), and similar to 143/99 G, respectively. Our measurements indicate that the 45-s QPP is probably modulated by the kink-mode wave of the flare loop. |
| 电子版国际标准刊号 | 2296-987X |
| 语种 | 英语 |
| WOS记录号 | WOS:000872375200001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299482]  |
| 专题 | 高能物理研究所_粒子天体物理中心 硬X射线调制望远镜卫星 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li, Dong,Shi, Fanpeng,Zhao, Haisheng,et al. Flare quasi-periodic pulsation associated with recurrent jets[J]. FRONTIERS IN ASTRONOMY AND SPACE SCIENCES,2022,9:1032099. |
| APA | Li, Dong.,Shi, Fanpeng.,Zhao, Haisheng.,Xiong, Shaolin.,Song, Liming.,...&Ning, Zongjun.(2022).Flare quasi-periodic pulsation associated with recurrent jets.FRONTIERS IN ASTRONOMY AND SPACE SCIENCES,9,1032099. |
| MLA | Li, Dong,et al."Flare quasi-periodic pulsation associated with recurrent jets".FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 9(2022):1032099. |
入库方式： OAI收割
来源：高能物理研究所
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