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题名:
On a Solar Blowout Jet: Driving Mechanism and the Formation of Cool and Hot Components
作者: Shen YD(申远灯)1,2,3,4; Liu, Ying D.2,5; Su, Jiangtao3,5; Qu, Zhining6; Tian ZJ(田占军)1,5
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2017-12-10
卷号: 851, 期号:1
DOI: 10.3847/1538-4357/aa9a48
学科分类: 天文学
产权排序: 第1完成单位
收录类别: SCI
通讯作者: Shen, Yuandeng(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China)
关键词: Sun: activity ; Sun: filaments ; prominences ; Sun: flares ; Sun: magnetic fields Supporting material: animation
英文摘要: We present observations of a blowout jet that experienced two distinct ejection stages. The first stage started from the emergence of a small positive magnetic polarity, which was cancelled by the nearby negative magnetic field and caused the rising of a mini-filament and its confining loops. This further resulted in a small jet due to the magnetic reconnection between the rising confining loops and the overlying open field. The second ejection stage was mainly due to successive removal of the confining field by reconnection: the filament erupted, and the erupting cool filament material directly combined with the hot jet that originated form the reconnection region and therefore formed the cool and hot components of the blowout jet. During the two ejection stages, cool Ha jets are also observed cospatial with their coronal counterparts, but their appearance times are earlier by a few minutes than those of the hot coronal jets. The hot coronal jets are therefor possibly caused by the heating of the cool Ha jets or the rising of the reconnection height from the chromosphere to the corona. The scenario that magnetic reconnection occurred between the confining loops and the overlying open loops is supported by many observational facts, including the bright patches on both sides of the mini-filament, hot plasma blobs along the jet body, and periodic metric radio type III bursts at the very beginnings of the two stages. The evolution and characteristics of these features show the detailed nonlinear process in magnetic reconnection.
项目资助者: Natural Science Foundation of China(11403097, 11633008, 11773068) ; Yunnan Science Foundation(2015FB191, 2017FB006) ; Specialized Research Fund for State Key Laboratories ; Open Research Program of the Key Laboratory of Solar Activity of Chinese Academy of Sciences(KLSA201601) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2014047)
语种: 英语
原文出处: 查看原文
ISSN号: 0004-637X
文章类型: Article
WOS标题词: Science & Technology ; Physical Sciences
研究领域[WOS]: Astronomy & Astrophysics
类目[WOS]: Astronomy & Astrophysics
关键词[WOS]: H-ALPHA SURGES ; CORONAL MASS EJECTIONS ; X-RAY JETS ; EXTREME-ULTRAVIOLET JETS ; EMERGING FLUX REGION ; MAGNETIC RECONNECTION ; MINIATURE FILAMENT ; HIGH-RESOLUTION ; ACTIVE-REGION ; CURRENT SHEET
WOS记录号: WOS:000417973600002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/12092
Appears in Collections:选址与日冕观测组_期刊论文

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作者单位: 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China
2.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories of Chinese Academy of Science, Beijing 100012, China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing, 100012, China
5.University of Chinese Academy of Sciences, Beijing 100049, China
6.School of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Recommended Citation:
Shen YD,Liu, Ying D.,Su, Jiangtao,et al. On a Solar Blowout Jet: Driving Mechanism and the Formation of Cool and Hot Components[J]. ASTROPHYSICAL JOURNAL,2017,851(1).
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