Evolution of an Emerging Anti-Hale Region and its Associated Eruptive Solar Flares in NOAA AR 12882 | |
Xu Z(徐喆)2,3; Yan XL(闫晓理)2,3; Yang LH(杨丽恒)2,3; Xue ZK(薛志科)2,3; Wang JC(王金成)2,3; Tan Y(覃瑛)1,2,3 | |
刊名 | ASTROPHYSICAL JOURNAL LETTERS |
2022-09-01 | |
卷号 | 937期号:1 |
ISSN号 | 2041-8205 |
DOI | 10.3847/2041-8213/ac8fef |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Solar active regions that violate the Hale-Nicholson rule are rare, but once formed, they tend to be flare-productive. In this letter, we investigated the evolution of an anti-Hale region newly emerging from the active region AR 12882 with a regular Hale distribution. The entire active region became very active, producing two eruptive flares within 48 hr after the emergence of the anti-Hale region. Strong photospheric shear motions appeared in this anti-Hale region, changing its tilt angle from the north-south direction to the east-west direction. The flux emergence and shearing motions continuously injected magnetic energy and negative magnetic helicity into the upper atmosphere. Meanwhile, the upper coronal structure changed from double J-shaped to reverse S-shaped, forming a magnetic flux rope lying above the anti-Hale region. This magnetic flux rope erupted successfully, then re-formed and erupted successfully again, producing a C2.7 flare and an M1.6 flare, respectively. Moreover, a large cusp structure was observed to form next to the flaring region after the M1.6 flare. Accordingly, we conclude that the evolution of the emerging anti-Hale region provides sufficient magnetic energy and helicity for the flares, and the interaction between the emerging anti-Hale region and the preexisting Hale active region eventually promotes the flares to be eruptive. |
学科主题 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | National Key R&D Program of China[2019YFA0405000] ; B-type Strategic Priority Program - Chinese Academy of Sciences[XDB41000000] ; National Science Foundation of China (NSFC)[12203097] ; National Science Foundation of China (NSFC)[12273108] ; National Science Foundation of China (NSFC)[12273106] ; National Science Foundation of China (NSFC)[12273110] ; National Science Foundation of China (NSFC)[11873027] ; National Science Foundation of China (NSFC)[11803085] ; National Science Foundation of China (NSFC)[11873087] ; National Science Foundation of China (NSFC)[11873088] ; National Science Foundation of China (NSFC)[11973085] ; National Science Foundation of China (NSFC)[11933009] ; National Science Foundation of China (NSFC)[12003064] ; National Science Foundation of China (NSFC)[12073072] ; National Science Foundation of China (NSFC)[12073081] ; National Science Foundation of China (NSFC)[12173084] ; National Science Foundation of China (NSFC)[12173092] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] |
WOS关键词 | BIPOLAR MAGNETIC REGIONS ; FLUX ROPE FORMATION ; ACTIVE REGIONS ; HELICITY ; ENERGY ; EMERGENCE ; MAGNETOGRAMS ; POLARITY ; TUBE |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000858452300001 |
资助机构 | National Key R&D Program of China[2019YFA0405000] ; B-type Strategic Priority Program - Chinese Academy of Sciences[XDB41000000] ; National Science Foundation of China (NSFC)[12203097, 12273108, 12273106, 12273110, 11873027, 11803085, 11873087, 11873088, 11973085, 11933009, 12003064, 12073072, 12073081, 12173084, 12173092] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25576] |
专题 | 云南天文台_抚仙湖太阳观测站 |
通讯作者 | Xu Z(徐喆) |
作者单位 | 1.University of Chinese Academy of Sciences, Yuquan Road, Shijingshan Block, Beijing 100049, People's Republic of China 2.Yunnan Key Laboratory of Solar Physics and Space Science, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People's Republic of China; xuzhe6249@ynao.ac.cn; |
推荐引用方式 GB/T 7714 | Xu Z,Yan XL,Yang LH,et al. Evolution of an Emerging Anti-Hale Region and its Associated Eruptive Solar Flares in NOAA AR 12882[J]. ASTROPHYSICAL JOURNAL LETTERS,2022,937(1). |
APA | Xu Z,Yan XL,Yang LH,Xue ZK,Wang JC,&Tan Y.(2022).Evolution of an Emerging Anti-Hale Region and its Associated Eruptive Solar Flares in NOAA AR 12882.ASTROPHYSICAL JOURNAL LETTERS,937(1). |
MLA | Xu Z,et al."Evolution of an Emerging Anti-Hale Region and its Associated Eruptive Solar Flares in NOAA AR 12882".ASTROPHYSICAL JOURNAL LETTERS 937.1(2022). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论