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An EUV Jet and H alpha Filament Eruption Associated with Flux Cancelation in a Decaying Active Region
Chen HD(陈华东)1,2; Jiang YC(姜云春)1; Ma SL(马素丽)1,2; Chen, HD (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming, Peoples R China.
发表期刊SOLAR PHYSICS
2009-03
卷号255期号:1页码:79-90
DOI10.1007/s11207-008-9298-1
产权排序第1完成单位
收录类别SCI
关键词Jets Magnetic Fields Photosphere Prominences Active
摘要Using data from the Transition Region and Coronal Explorer (TRACE), Solar and Heliospheric Observatory (SOHO), Ramaty High Energy Solar Spectroscopic Imager (RHESSI), and Hida Observatory (HO), we present a detailed study of an EUV jet and the associated H alpha filament eruption in a major flare in the active region NOAA 10044 on 29 July 2002. In the H alpha line wings, a small filament was found to erupt out from the magnetic neutral line of the active region during the flare. Two bright EUV loops were observed rising and expanding with the filament eruption, and both hot and cool EUV plasma ejections were observed to form the EUV jet. The two thermal components spatially separated from each other and lasted for about 25 minutes. In the white-light corona data, a narrow coronal mass ejection (CME) was found to respond to this EUV jet. We cannot find obvious emerging flux in the photosphere accounting for the filament eruption and the EUV jet. However, significant sunspot decay and magnetic-flux cancelation owing to collision of opposite flux before the events were noticed. Based on the hard X-ray data from RHESSI, which showed evidence of magnetic reconnection along the main magnetic neutral line, we think that all of the observed dynamical phenomena, including the EUV jet, filament eruption, flare, and CME, should have a close relation to the flux cancelation in the low atmosphere.
项目资助者National Science Foundation of China (NSFC) [10573033, 40636031, 10473020] ; 973 program [2006CB806303]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0038-0938
URL查看原文
归档日期2009-02-28
WOS记录号WOS:000263649900004
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]X-RAY JETS ; CORONAL MASS EJECTIONS ; MAGNETIC-FIELD CHANGES ; EXTREME-ULTRAVIOLET ; QUIESCENT FILAMENT ; TRANSITION REGION ; SOLAR ERUPTIONS ; SURGES ; FLARES ; MODEL
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6148
专题太阳物理研究组
通讯作者Chen, HD (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, China
2.Graduate School of Chinese Academy of Sciences, Beijing, China
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GB/T 7714
Chen HD,Jiang YC,Ma SL,et al. An EUV Jet and H alpha Filament Eruption Associated with Flux Cancelation in a Decaying Active Region[J]. SOLAR PHYSICS,2009,255(1):79-90.
APA Chen HD,Jiang YC,Ma SL,&Chen, HD .(2009).An EUV Jet and H alpha Filament Eruption Associated with Flux Cancelation in a Decaying Active Region.SOLAR PHYSICS,255(1),79-90.
MLA Chen HD,et al."An EUV Jet and H alpha Filament Eruption Associated with Flux Cancelation in a Decaying Active Region".SOLAR PHYSICS 255.1(2009):79-90.
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