OBSERVATIONS OF EUV RECURRING JETS IN AN ACTIVE REGION CONFINED BY CORONAL LOOPS

	OBSERVATIONS OF EUV RECURRING JETS IN AN ACTIVE REGION CONFINED BY CORONAL LOOPS
	Zheng YF(郑艳芳)1,2 ; Wang, F3 ; Ji, KF3 ; Deng, H 3
刊名	JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY
	2013-10-31
卷号	46 期号:5 页码:183-190
关键词	Sun: jets Sun: filament Sun: magnetic fields Sun: coronal loops
ISSN号	1225-4614
通讯作者	Zheng, YF (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	Recurring jets, which are jets ejected from the same site, are a peculiar type among various solar jet phenomena. We report such recurring jets ejecting from the same site above an active region on January 22, 2012 with high-resolution multi-wavelength observations from Solar Dynamics Observatory(SDO). We found that the recurring jets had velocities, lengths and lifetimes, but had similar directions. The visible brightening appeared at the jet base before each jet erupted. All the plasma produced by the recurring jets could not overcome the large coronal loops. It seemed that the plasma ejecting from the jet base was confined and guided by preexisting coronal loops, but their directions were not along the paths of the loops. Two of the jets formed crossing structures with the same preexisting filament. We also examined the photospheric magnetic field at the jet base, and observed a visible flux emergence, convergence and cancellation. The four recurring jets all were associated with the impulsive cancellation between two opposite polarities occurring at the jet base during each eruption. In addition, we suggest that the fluxes, flowing out of the active region, might supply the energy for the recurring jets by examining the SDO/Helioseismic and Magnetic Imager (HMI) successive images. The observational results support the magnetic reconnection model of jets.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	X-RAY JETS ; H-ALPHA SURGES ; TELESCOPE
收录类别	SCI
原文出处	http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=CMHHBA_2013_v46n5_183
语种	英语
WOS记录号	WOS:000326661000001
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4690]
专题	云南天文台_抚仙湖太阳观测站
作者单位	1.National Astronomical Observatories, Yunnan Astronomical Observatory, Chinese Academy of Sciences, P. O. Box 110, 650011, Kunming, China 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.Computer Technology Application Key Lab of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
推荐引用方式 GB/T 7714	Zheng YF,Wang, F,Ji, KF,et al. OBSERVATIONS OF EUV RECURRING JETS IN AN ACTIVE REGION CONFINED BY CORONAL LOOPS[J]. JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY,2013,46(5):183-190.
APA	Zheng YF,Wang, F,Ji, KF,&Deng, H.(2013).OBSERVATIONS OF EUV RECURRING JETS IN AN ACTIVE REGION CONFINED BY CORONAL LOOPS.JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY,46(5),183-190.
MLA	Zheng YF,et al."OBSERVATIONS OF EUV RECURRING JETS IN AN ACTIVE REGION CONFINED BY CORONAL LOOPS".JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY 46.5(2013):183-190.