The Formation Process of the First Halo Coronal Mass Ejection in Solar Cycle 25: Magnetic Cancellation, Bidirectional Jet, and Hot Channel | |
Yan XL(闫晓理)1,2![]() ![]() ![]() ![]() | |
Source Publication | ASTROPHYSICAL JOURNAL
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2021-09-01 | |
Volume | 919Issue:1Pages:8 |
DOI | 10.3847/1538-4357/ac116d |
Contribution Rank | 第1完成单位 |
Indexed By | SCI |
Abstract | To better understand the trigger mechanism of a coronal mass ejection (CME), we present the evolution of a CME source region (active region NOAA 12790) and the formation of a hot channel before the occurrence of the first halo CME in solar cycle 25. Through analyzing the evolution of Solar Dynamics Observatory/Helioseismic and Magnetic Imager line-of-sight magnetograms, it is found that continuous magnetic cancellation occurs at the polarity inversion line (PIL) in this active region. With ongoing magnetic cancellation, several bidirectional jets and unidirectional jets occur along the large-scale arched magnetic loops. A hot channel forms during the first bidirectional jet. After the occurrence of the fourth bidirectional jet, the hot channel immediately erupts and produces a C-class flare, a cusp structure, and a halo CME. It is worth pointing out that the cusp structure only appears in the 131 angstrom and 94 angstrom observations (temperature about 10 MK). The obvious contraction of the newly formed loops is observed at the top of the cusp structure. The observations reveal a clear physics process: magnetic cancellation of a bipolar magnetic field at the PIL results in the occurrence of the bidirectional/unidirectional jets and the formation of the hot channel. The axial magnetic flux feeding for the hot channel through the continued magnetic cancellation leads to the hot channel eruption, which results in the formation of the hot cusp structure and the occurrence of the C-class flare and the halo CME. |
Funding Project | National Science Foundation of China (NSFC)[11873087] ; National Science Foundation of China (NSFC)[11973084] ; National Science Foundation of China (NSFC)[11803085] ; National Science Foundation of China (NSFC)[2019FD085] ; National Science Foundation of China (NSFC)[12003064] ; National Science Foundation of China (NSFC)[11633008] ; National Science Foundation of China (NSFC)[11763004] ; National Science Foundation of China (NSFC)[U1831210] ; National Science Foundation of China (NSFC)[11803002] ; Yunnan Key Science Foundation of China[2018FA001] ; Yunnan Key Science Foundation of China[2018FB007] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Key Laboratory of Solar Activity of CAS[KLSA202008] ; Key Research and Development Project of Yunnan Province[202003AD150019] |
Funding Organization | National Science Foundation of China (NSFC)[11873087, 11973084, 11803085, 2019FD085, 12003064, 11633008, 11763004, U1831210, 11803002] ; Yunnan Key Science Foundation of China[2018FA001, 2018FB007] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Key Laboratory of Solar Activity of CAS[KLSA202008] ; Key Research and Development Project of Yunnan Province[202003AD150019] |
Language | 英语 |
Subject Area | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
MOST Discipline Catalogue | 理学 ; 理学::天文学 |
Subtype | Article |
Publisher | IOP PUBLISHING LTD |
Publication Place | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
ISSN | 0004-637X |
URL | 查看原文 |
WOS ID | WOS:000697834600001 |
WOS Research Area | Astronomy & Astrophysics |
WOS Subject | Astronomy & Astrophysics |
WOS Keyword | RECONNECTION ; FLARE ; FILAMENT ; PROMINENCE ; ERUPTIONS ; MODEL ; LOOPS |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ynao.ac.cn/handle/114a53/24634 |
Collection | 抚仙湖太阳观测和研究基地 |
Corresponding Author | Yan XL(闫晓理) |
Affiliation | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China 2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People's Republic of China 3.College of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing 314001, People's Republic Of China |
First Author Affilication | Yunnan Observatories, Chinese Academy of Sciences |
Corresponding Author Affilication | Yunnan Observatories, Chinese Academy of Sciences |
Recommended Citation GB/T 7714 | Yan XL,Wang JC,Guo, Qiaoling,et al. The Formation Process of the First Halo Coronal Mass Ejection in Solar Cycle 25: Magnetic Cancellation, Bidirectional Jet, and Hot Channel[J]. ASTROPHYSICAL JOURNAL,2021,919(1):8. |
APA | Yan XL,Wang JC,Guo, Qiaoling,Xue ZK,Yang LH,&Tan, Baolin.(2021).The Formation Process of the First Halo Coronal Mass Ejection in Solar Cycle 25: Magnetic Cancellation, Bidirectional Jet, and Hot Channel.ASTROPHYSICAL JOURNAL,919(1),8. |
MLA | Yan XL,et al."The Formation Process of the First Halo Coronal Mass Ejection in Solar Cycle 25: Magnetic Cancellation, Bidirectional Jet, and Hot Channel".ASTROPHYSICAL JOURNAL 919.1(2021):8. |
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