Rapid Spatiotemporal Evolution of Vertical Electric Currents during an X-class Flare
文献类型：期刊论文
| 作者 | Shen, Jinhua1,2; Yang, Xu5; Li, Jianping4; Liu, Yangyu2,3; Su, Yingna4; Ji, Haisheng4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-06-10 |
| 卷号 | 986期号:1页码:102 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/add92d |
| 产权排序 | 1 |
| 英文摘要 | In this paper, we present a detailed analysis of the spatiotemporal evolution of photospheric vertical electric currents (VECs) during an X1.1 flare (SOL2013-11-10T05:08). The VEC on the solar surface is calculated using the 135 s high-temporal-resolution vector magnetograms obtained from the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory. In the region, a highly sheared magnetic channel that is also a polarity inversion line (PIL) divides the region into two parts. The spatial configuration of VEC ribbons is always conjugate footprints, and it takes the form of a sigmoid along two sides of the PIL at the beginning of the flare. The temporal evolution of the VECs shows a rapid enhancement associated with the impulsive phase of the flare, and mean horizontal fields in this region show similar temporal behavior. The most prominent enhancement of VECs not only shows up along the two sides of the enhancement Bh but also spreads outward along the PILs. The VECs in positive and negative fields have an initial separation motion and are followed by an apparent approaching motion. In contrast, the flaring loops and white-light flare ribbons have an initial contraction and later expansion motion. Our results show that the rapid change of magnetic fields related to flares has a predominant role in affecting the spatiotemporal evolution of VECs. |
| WOS关键词 | HIGH-RESOLUTION OBSERVATIONS ; SHEARED MAGNETIC-FIELDS ; QUASI-SEPARATRIX LAYERS ; SOLAR ACTIVE REGIONS ; LORENTZ FORCE ; CURRENT NEUTRALIZATION ; STATISTICAL-ANALYSIS ; ERUPTIVE ACTIVITY ; FLUX EMERGENCE ; ENERGY-RELEASE |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[XDB0560000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[12273101] ; National Natural Science Foundation of China (NSFC)[2024D01E38] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[YNSPCC202219] ; Specialized Research Fund for State Key Laboratories of Solar Activity and Space Weather and Yunnan Key Laboratory of Solar Physics and Space Science |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001506909500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809 ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Specialized Research Fund for State Key Laboratories of Solar Activity and Space Weather and Yunnan Key Laboratory of Solar Physics and Space Science |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7822]  |
| 专题 | 太阳物理研究室_太阳物理研究团组 |
| 通讯作者 | Shen, Jinhua |
| 作者单位 | 1.State Key Lab Solar Act & Space Weather, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.UCAS, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Nanjing 210023, Peoples R China 5.Big Bear Solar Observ, 40386 N Shore Ln, Big Bear City, CA 92314 USA |
| 推荐引用方式 GB/T 7714 | Shen, Jinhua,Yang, Xu,Li, Jianping,et al. Rapid Spatiotemporal Evolution of Vertical Electric Currents during an X-class Flare[J]. ASTROPHYSICAL JOURNAL,2025,986(1):102. |
| APA | Shen, Jinhua,Yang, Xu,Li, Jianping,Liu, Yangyu,Su, Yingna,&Ji, Haisheng.(2025).Rapid Spatiotemporal Evolution of Vertical Electric Currents during an X-class Flare.ASTROPHYSICAL JOURNAL,986(1),102. |
| MLA | Shen, Jinhua,et al."Rapid Spatiotemporal Evolution of Vertical Electric Currents during an X-class Flare".ASTROPHYSICAL JOURNAL 986.1(2025):102. |
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来源：新疆天文台
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