KMS of Xinjiang Astronomical Observatory, CAS
| Long-period energy releases during a C2.8 flare | |
Li, Dong1,2; Li, Jianping1; Shen, Jinhua3 ; Song, Qiwu1; Ji, Haisheng1; Ning, Zongjun1
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| 2024-09-27 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 0004-6361 |
| Volume | 690Pages:A39 |
| Contribution Rank | 3 |
| Abstract | Context. The study of quasi-periodic pulsations (QPPs) is a key diagnostic of intermittent or periodic energy releases during solar flares. Aims. We investigated the intermittent energy-releasing processes by analyzing the long-period pulsations during a C2.8 flare on 2023 June 3. Methods. The solar flare was simultaneously observed by the solar X-ray detector on board the Macau Science Satellite-1B, the Geostationary Operational Environmental Satellite, the Chinese H alpha Solar Explorer, the Expanded Owens Valley Solar Array, the Atmospheric Imaging Assembly, and the Extreme Ultraviolet Variability Experiment for the Solar Dynamics Observatory. Results. The C2.8 flare shows three successive and repetitive pulsations in soft X-ray (SXR) and high-temperature extreme ultraviolet (EUV) emissions, which may imply three episodes of energy releases during the solar flare. The QPP period is estimated to be as long as similar to 7.5 minutes. EUV imaging observations suggest that these three pulsations come from the same flare area dominated by the hot loop system. Conversely, the flare radiation in wavelengths of radio/microwave, low-temperature EUV, ultraviolet (UV), and H alpha only reveals the first pulsation, which may be associated with nonthermal electrons accelerated by magnetic reconnection. The other two pulsations in wavelengths of SXR and high-temperature EUV might be caused by the loop-loop interaction. Conclusions. Our observations indicate that the three episodes of energy releases during the C2.8 flare are triggered by different mechanisms, namely the accelerated electron via magnetic reconnection, and the loop-loop interaction in a complicated magnetic configuration. |
| Keyword | Sun: flares Sun: radio radiation Sun: UV radiation Sun: X-rays gamma rays |
| DOI | 10.1051/0004-6361/202450622 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | HARD X-RAY ; SOLAR-FLARE ; LY-ALPHA ; MICROWAVE EMISSION ; PULSATIONS ; RECONNECTION ; BURSTS ; MODELS |
| Funding Project | NSFC[12250014] ; NSFC[12273101 12073081] ; National Key R&D Program of China[2021YFA1600502] ; National Key R&D Program of China[2021YFA1600500] ; Macao Foundation ; Specialized Research Fund for State Key Laboratories ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; China National Space Administration (CNSA) |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001322237700011 |
| Publisher | EDP SCIENCES S A |
| Funding Organization | NSFC ; National Key R&D Program of China ; Macao Foundation ; Specialized Research Fund for State Key Laboratories ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7037 |
| Collection | 太阳物理研究团组 |
| Corresponding Author | Li, Dong |
| Affiliation | 1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Dong,Li, Jianping,Shen, Jinhua,et al. Long-period energy releases during a C2.8 flare[J]. ASTRONOMY & ASTROPHYSICS,2024,690:A39. |
| APA | Li, Dong,Li, Jianping,Shen, Jinhua,Song, Qiwu,Ji, Haisheng,&Ning, Zongjun.(2024).Long-period energy releases during a C2.8 flare.ASTRONOMY & ASTROPHYSICS,690,A39. |
| MLA | Li, Dong,et al."Long-period energy releases during a C2.8 flare".ASTRONOMY & ASTROPHYSICS 690(2024):A39. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Li-2024-Long-period （1706KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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