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Coronal Mass Ejections Deflected by Newly Emerging Flux: A Combined Analytic and Numerical Study

文献类型：期刊论文

作者Chen, Yuhao1,2; Shen, Chengcai3; Mei ZX(梅志星)4,5; Ye J(叶景)4,5; Hu, Jialiang6,7; Tang ZH(汤泽浩)4,5; Cheng GC(程冠冲)4,5; Xu, Shanshan8; Zafar, Abdullah4; Song, Yujia7,9
刊名ASTROPHYSICAL JOURNAL
出版日期2025-12-10
卷号995期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/ae17be
产权排序第4完成单位
文献子类Article
英文摘要Newly emerging flux (NEF) has been widely studied as a trigger of solar filament eruptions, but its influence on the subsequent dynamics remains poorly explored. Because NEF typically emerges adjacent to filaments, it imposes magnetic asymmetry that can drive nonradial eruptions and complicate space-weather forecasting. We bridge analytic catastrophe theory with 2D resistive MHD simulations: analytic solutions provide magnetic configurations containing a flux rope at the loss-of-equilibrium point, which are then used as initial conditions for simulations to examine the following dynamics. We find that NEF governs the kinematics of filament eruptions in two ways. First, by reshaping coronal stability, NEF can create or eliminate a higher equilibrium in the corona, thereby producing failed eruptions or coronal mass ejections (CMEs). In the transitional situation where a metastable equilibrium appears, the rising filament decelerates and stalls before reaccelerating into a CME, consistent with observed two-step eruptions. Second, by breaking symmetry, NEF deflects eruptions away from the radial direction: depending on its polarity, it acts as a repulsor or an attractor on eruptive filaments, and the deflection magnitude increases with the degree of asymmetry. Our theory yields two characteristic angles that predict the deflection directions of CMEs and failed eruptions, and simulations closely align with these predictors. These results highlight the NEF not only as a trigger but also as a key factor that governs both the acceleration and deflection of eruptions during their propagation in the low corona.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND
WOS关键词SOLAR ERUPTIONS ; MAGNETIC-FIELD ; NONRADIAL PROPAGATION ; PROMINENCE ERUPTIONS ; FILAMENT ERUPTIONS ; TRANSPORT SCHEME ; CME ; EVOLUTION ; RECONNECTION ; FLARE
资助项目the strategic priority research program of the chinese academy of sciences[XDB0560000]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001634950900001
出版者IOP Publishing Ltd
资助机构the strategic priority research program of the chinese academy of sciences[XDB0560000]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28777]  
专题云南天文台_太阳物理研究组
通讯作者Mei ZX(梅志星); Ye J(叶景)
作者单位1.School of Earth and Space Sciences, Peking University, Beijing 100781, People’s Republic of China;
2.State Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China;
3.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA;
4.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650216, People’s Republic of China; meizhixing@ynao.ac.cn, yj@ynao.ac.cn;
5.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming, Yunnan 650216, People’s Republic of China;
6.State Key Laboratory of Solar Activity and Space Weather, National Astronomical Observatories, Chinese Academy of Sciences, 100101, Beijing, People’s Republic of China;
7.School of Astronomy and Space Science, University of Chinese Academy of Sciences, 100049, Beijing, People’s Republic of China;
8.Key Laboratory of Particle Astrophysics and Experimental Physics Division and Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, 100049 Beijing, People’s Republic of China;
9.Key Laboratory for Computational Astrophysics, National Astronomical Observatories, Chinese Academy of Sciences, Datun Road A20, Beijing 100012, People’s Republic of China;
10.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
推荐引用方式
GB/T 7714		 Chen, Yuhao,Shen, Chengcai,Mei ZX,et al. Coronal Mass Ejections Deflected by Newly Emerging Flux: A Combined Analytic and Numerical Study[J]. ASTROPHYSICAL JOURNAL,2025,995(1).
APA Chen, Yuhao.,Shen, Chengcai.,梅志星.,叶景.,Hu, Jialiang.,...&林隽.(2025).Coronal Mass Ejections Deflected by Newly Emerging Flux: A Combined Analytic and Numerical Study.ASTROPHYSICAL JOURNAL,995(1).
MLA Chen, Yuhao,et al."Coronal Mass Ejections Deflected by Newly Emerging Flux: A Combined Analytic and Numerical Study".ASTROPHYSICAL JOURNAL 995.1(2025).

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