Chirality and magnetic configuration associated with two-ribbon solar flares: AR 10930 versus AR 11158
文献类型：期刊论文
| 作者 | He, Han2,3,4; Wang, Huaning2,4; Yan, Yihua2,4 ; Li, Bo3; Chen, P. F.1,5
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| 刊名 | ADVANCES IN SPACE RESEARCH
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| 出版日期 | 2020-06-15 |
| 卷号 | 65期号:12页码:2828-2845 |
| 关键词 | Two-ribbon solar flares Magnetic configuration Chirality |
| ISSN号 | 0273-1177 |
| DOI | 10.1016/j.asr.2020.03.034 |
| 英文摘要 | The structural property of the magnetic field in flare-bearing solar active regions (ARs) is one of the key aspects for understanding and forecasting solar flares. In this paper, we make a comparative analysis on the chirality and magnetic configurations associated with two X-class two-ribbon flares happening in AR 10930 and AR 11158. The photospheric magnetic fields of the two ARs were observed by space-based instruments, and the corresponding coronal magnetic fields were calculated based on the nonlinear force-free field model. The analysis shows that the electric current in the two ARs was distributed mostly around the main polarity inversion lines (PILs) where the flares happened, and the magnetic chirality (indicated by the signs of force-free factor alpha) along the main PILs is opposite for the two ARs, i.e., left-handed (alpha < 0) for AR 10930 and right-handed (alpha > 0) for AR 11158. It is found that, for both the flare events, a prominent magnetic connectivity (featured by co-localized strong alpha and strong current density distributions) was formed along the main PIL before flare and was totally broken after flare eruption. The two branches of the broken magnetic connectivity, combined with the prominent magnetic connectivity before flare, compose the opposite magnetic configurations in the two ARs owing to their opposite chirality, i.e., Z-shaped configuration in AR 10930 with left-handed chirality and inverse Z-shaped configuration in AR 11158 with right-handed chirality. It is speculated that two-ribbon flares can be generally classified to these two magnetic configurations by chirality in the flare source regions of ARs. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | BOUNDARY INTEGRAL-EQUATION ; ACTIVE-REGION ; OPEN SPACE ; FIELD ; ENERGY ; OPTIMIZATION ; MISSION ; SUPERFLARES ; TELESCOPE ; TOPOLOGY |
| 资助项目 | Specialized Research Fund for Shandong Provincial Key Laboratory ; National Natural Science Foundation of China (NSFC)[11973059] ; National Natural Science Foundation of China (NSFC)[11761141002] ; National Natural Science Foundation of China (NSFC)[40890160] ; National Natural Science Foundation of China (NSFC)[40890161] ; National Natural Science Foundation of China (NSFC)[10803011] ; National Key R&D Program of China[2019YFA0405000] ; National Key R&D Program of China[2014FY120300] ; Astronomical Big Data Joint Research Center ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences[XDA15052200] ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences[XDB41000000] ; China Meteorological Administration[GYHY201106011] |
| WOS研究方向 | Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000533506300012 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Specialized Research Fund for Shandong Provincial Key Laboratory ; Specialized Research Fund for Shandong Provincial Key Laboratory ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; China Meteorological Administration ; China Meteorological Administration ; Specialized Research Fund for Shandong Provincial Key Laboratory ; Specialized Research Fund for Shandong Provincial Key Laboratory ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; China Meteorological Administration ; China Meteorological Administration ; Specialized Research Fund for Shandong Provincial Key Laboratory ; Specialized Research Fund for Shandong Provincial Key Laboratory ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; China Meteorological Administration ; China Meteorological Administration ; Specialized Research Fund for Shandong Provincial Key Laboratory ; Specialized Research Fund for Shandong Provincial Key Laboratory ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; National Key R&D Program of China ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; China Meteorological Administration ; China Meteorological Administration |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/55013]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | He, Han |
| 作者单位 | 1.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Solar Act, 20A Datun Rd, Beijing 100101, Peoples R China 3.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, 180 Wenhua Xilu, Weihai 264209, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Nanjing Univ, Sch Astron & Space Sci, 163 Xianlin St, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Han,Wang, Huaning,Yan, Yihua,et al. Chirality and magnetic configuration associated with two-ribbon solar flares: AR 10930 versus AR 11158[J]. ADVANCES IN SPACE RESEARCH,2020,65(12):2828-2845. |
| APA | He, Han,Wang, Huaning,Yan, Yihua,Li, Bo,&Chen, P. F..(2020).Chirality and magnetic configuration associated with two-ribbon solar flares: AR 10930 versus AR 11158.ADVANCES IN SPACE RESEARCH,65(12),2828-2845. |
| MLA | He, Han,et al."Chirality and magnetic configuration associated with two-ribbon solar flares: AR 10930 versus AR 11158".ADVANCES IN SPACE RESEARCH 65.12(2020):2828-2845. |
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来源：国家天文台
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