A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament
In this work, we analyze a successful eruption, accompanied by an X5.4-class flare in active region 11429. The eruptive structure is an elongated hot structure, with two curved brightenings below it. Additionally, we find that snail-shell-shaped flare loops are formed at the end of the flare, with a...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/add88e |
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| author | Wentai Fu Yiwei Ni Jinhan Guo Yang Guo P. F. Chen Mingde Ding |
| author_facet | Wentai Fu Yiwei Ni Jinhan Guo Yang Guo P. F. Chen Mingde Ding |
| author_sort | Wentai Fu |
| collection | DOAJ |
| description | In this work, we analyze a successful eruption, accompanied by an X5.4-class flare in active region 11429. The eruptive structure is an elongated hot structure, with two curved brightenings below it. Additionally, we find that snail-shell-shaped flare loops are formed at the end of the flare, with a filament channel beneath the loops that implies a magnetic flux rope structure. The flare ribbons indicate a highly complex eruption process. During the eruption, using Global Oscillation Network Group data, we find a small filament that exists before and after the eruption. We reproduce the eruption using a full thermodynamic magnetohydrodynamic simulation, with the purpose to illustrate the mechanisms of the eruption. The small magnetic flux rope continuously rises due to arcade–arcade to rope–flare loop reconnection below, compressing the sheared magnetic arcades above. Slipping reconnection between the upper sheared magnetic arcades leads to the formation of new sheared magnetic arcades, resulting in a successful eruption. Simultaneously, the newly formed snail-shell-shaped flare loops constrain the elevation of the original magnetic flux rope below, implying that the original magnetic flux rope is not the eruptive structure of this successful eruption. Instead, the sheared magnetic arcades produced by the upper slipping reconnection above the original flux rope is the eruptive structure involved. |
| format | Article |
| id | doaj-art-5fef9f9050b54524b6ccea7473841e49 |
| institution | DOAJ |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-5fef9f9050b54524b6ccea7473841e492025-08-20T03:10:23ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198619510.3847/1538-4357/add88eA Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small FilamentWentai Fu0Yiwei Ni1https://orcid.org/0000-0002-9908-291XJinhan Guo2https://orcid.org/0000-0002-4205-5566Yang Guo3https://orcid.org/0000-0002-9293-8439P. F. Chen4https://orcid.org/0000-0002-7289-642XMingde Ding5https://orcid.org/0000-0002-4978-4972School of Astronomy and Space Science, Nanjing University , Nanjing 210023, People’s Republic of China ; guoyang@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of ChinaSchool of Astronomy and Space Science, Nanjing University , Nanjing 210023, People’s Republic of China ; guoyang@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of ChinaSchool of Astronomy and Space Science, Nanjing University , Nanjing 210023, People’s Republic of China ; guoyang@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of ChinaSchool of Astronomy and Space Science, Nanjing University , Nanjing 210023, People’s Republic of China ; guoyang@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of ChinaSchool of Astronomy and Space Science, Nanjing University , Nanjing 210023, People’s Republic of China ; guoyang@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of ChinaSchool of Astronomy and Space Science, Nanjing University , Nanjing 210023, People’s Republic of China ; guoyang@nju.edu.cn; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of ChinaIn this work, we analyze a successful eruption, accompanied by an X5.4-class flare in active region 11429. The eruptive structure is an elongated hot structure, with two curved brightenings below it. Additionally, we find that snail-shell-shaped flare loops are formed at the end of the flare, with a filament channel beneath the loops that implies a magnetic flux rope structure. The flare ribbons indicate a highly complex eruption process. During the eruption, using Global Oscillation Network Group data, we find a small filament that exists before and after the eruption. We reproduce the eruption using a full thermodynamic magnetohydrodynamic simulation, with the purpose to illustrate the mechanisms of the eruption. The small magnetic flux rope continuously rises due to arcade–arcade to rope–flare loop reconnection below, compressing the sheared magnetic arcades above. Slipping reconnection between the upper sheared magnetic arcades leads to the formation of new sheared magnetic arcades, resulting in a successful eruption. Simultaneously, the newly formed snail-shell-shaped flare loops constrain the elevation of the original magnetic flux rope below, implying that the original magnetic flux rope is not the eruptive structure of this successful eruption. Instead, the sheared magnetic arcades produced by the upper slipping reconnection above the original flux rope is the eruptive structure involved.https://doi.org/10.3847/1538-4357/add88eSolar flaresMagnetic fieldsSolar magnetic reconnectionMagnetohydrodynamical simulations |
| spellingShingle | Wentai Fu Yiwei Ni Jinhan Guo Yang Guo P. F. Chen Mingde Ding A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament The Astrophysical Journal Solar flares Magnetic fields Solar magnetic reconnection Magnetohydrodynamical simulations |
| title | A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament |
| title_full | A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament |
| title_fullStr | A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament |
| title_full_unstemmed | A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament |
| title_short | A Successful Sheared-arcade Eruption Triggered by a Failed Erupted Small Filament |
| title_sort | successful sheared arcade eruption triggered by a failed erupted small filament |
| topic | Solar flares Magnetic fields Solar magnetic reconnection Magnetohydrodynamical simulations |
| url | https://doi.org/10.3847/1538-4357/add88e |
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