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Double-decker Pair of Flux Ropes Formed by Two Successive Tether-cutting Eruptions

文献类型：期刊论文

作者Shen YD(申远灯)1; Liu DX(刘东旭)1; Yao SR(姚苏芮)1; Zhou CR(周承瑞)1; Tang ZH(汤泽浩)1; Qu, Zhining3; Zhou, Xinping3; Duan YD(段雅丹)1; Tan S(谭宋)1; Ibrahim, Ahmed Ahmed2
刊名ASTROPHYSICAL JOURNAL
出版日期2024-04-01
卷号964期号:2
ISSN号0004-637X
DOI10.3847/1538-4357/ad2349
产权排序第1完成单位
文献子类Article
英文摘要Double-decker filaments and their eruptions have been widely observed in recent years, but their physical formation mechanism is still unclear. Using high spatiotemporal resolution, multi-wavelength observations taken by the New Vacuum Solar Telescope and the Solar Dynamics Observatory, we show the formation of a double-decker pair of flux rope system by two successive tether-cutting eruptions in a bipolar active region. Due to the combined effect of photospheric shearing and convergence motions around the active region's polarity inversion line (PIL), the arms of two overlapping inverse-S-shaped short filaments reconnected at their intersection, which created a simultaneous upward-moving magnetic flux rope (MFR) and a downward-moving post-flare-loop (PFL) system striding the PIL. Meanwhile, four bright flare ribbons appeared at the footpoints of the newly formed MFR and the PFL. As the MFR rose, two elongated flare ribbons connected by a relatively larger PFL appeared on either side of the PIL. After a few minutes, another MFR formed in the same way at the same location and then erupted in the same direction as the first one. Detailed observational results suggest that the eruption of the first MFR might experienced a short pause before its successful eruption, while the second MFR was a failed eruption. This implies that the two newly formed MFRs might reach a new equilibrium at relatively higher heights for a while, which can be regarded as a transient double-decker flux rope system. The observations can well be explained by the tether-cutting model, and we propose that two successive confined tether-cutting eruptions can naturally produce a double-decker flux rope system, especially when the background coronal magnetic field has a saddle-like distribution of magnetic decay index profile in height.
学科主题天文学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词EXTREME-ULTRAVIOLET WAVE ; ACTIVE-REGION FILAMENTS ; CORONAL MASS EJECTIONS ; MAGNETIC RECONNECTION ; SOLAR ERUPTION ; HELICAL FLUX ; NUMERICAL SIMULATIONS ; DECAY-INDEX ; BLOWOUT JET ; SLOW RISE
资助项目MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12173083]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[11922307]; MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[11773068]; Natural Science Foundation of China[202101AV070004]; Yunnan Science Foundation for Distinguished Young Scholars[2019YFA0405000]; National Key R&D Program of China[RSPD2023R993]; Specialized Research Fund for State Key Laboratories; King Saud University, Riyadh, Saudi Arabia
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:001189181200001
资助机构MOST divided by National Natural Science Foundation of China (NSFC)https://doi.org/10.13039/501100001809[12173083, 11922307, 11773068] ; Natural Science Foundation of China[202101AV070004] ; Yunnan Science Foundation for Distinguished Young Scholars[2019YFA0405000] ; National Key R&D Program of China[RSPD2023R993] ; Specialized Research Fund for State Key Laboratories ; King Saud University, Riyadh, Saudi Arabia
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/26747]  
专题云南天文台_选址与日冕观测组
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China; ydshen@ynao.ac.cn;
2.Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, 11451 Riyadh, Saudi Arabia
3.College of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610068, People's Republic of China;
推荐引用方式
GB/T 7714		 Shen YD,Liu DX,Yao SR,et al. Double-decker Pair of Flux Ropes Formed by Two Successive Tether-cutting Eruptions[J]. ASTROPHYSICAL JOURNAL,2024,964(2).
APA 申远灯.,刘东旭.,姚苏芮.,周承瑞.,汤泽浩.,...&Ibrahim, Ahmed Ahmed.(2024).Double-decker Pair of Flux Ropes Formed by Two Successive Tether-cutting Eruptions.ASTROPHYSICAL JOURNAL,964(2).
MLA 申远灯,et al."Double-decker Pair of Flux Ropes Formed by Two Successive Tether-cutting Eruptions".ASTROPHYSICAL JOURNAL 964.2(2024).

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来源：云南天文台

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