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学科：天体物理. 空间物理学. 等离子体物理
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[Title] Analysis of the Vertical Current Evolution for the X9.3 Flare on 6 September 2017
影响因子：2.4
DOI码：10.1007/s11207-025-02467-3
教研室：天体物理
发表刊物：Solar Physics
关键字：solar activity;solar flare;solar magnetic fields
摘要：In this article,we examine the morphological evolution and current distribution of the X9.3-class flare on 6 September 2017 that occurred in active region 12673. Using high-resolution observations from SDO/AIA and HMI,we analyze the evolution of vertical current density derived from vector magnetograms. The vertical current intensity exhibits two distinct enhancements corresponding to the X2.2 and X9.3 flares,with the latter showing a more pronounced increase. A pair of conjugate current ribbons is identified,spatially coincident with the flare ribbons. During the X9.3 flare eruption,the current ribbons undergo significant morphological evolution,including contraction,fragmentation,and the formation of current islands. The correspondence between current islands and flare kernels suggests that the eruption mechanism of the X9.3 flare is consistent with tether-cutting magnetic reconnection.
合写作者：Deng XF,Liang HF,Zhou XP,Liu Y,Qu ZQ
第一作者：Li HL
论文编号：013
学科门类：理学
一级学科：天文学
卷号：300
期号：5
页面范围：id.55
ISSN号：0038-0938
是否译文：否
发表时间：2025-05-01