THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN

	THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN
	Yang B(杨波)1,2,3 ; Jiang YC(姜云春)1 ; Yang JY(杨家艳)1 ; Hong JC(洪俊超)1 ; Xu Z(徐喆)1,2
刊名	ASTROPHYSICAL JOURNAL
	2015-04-20
卷号	803 期号:2
关键词	Sun: activity Sun: filaments Sun: magnetic fields prominences
ISSN号	0004-637X
通讯作者	Yang, B (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	We present the first observation of the formation and eruption of a small circular filament driven by a rotating network magnetic field (RNF) in the quiet Sun. In the negative footpoint region of an inverse J-shaped dextral filament, the RNF was formed by the convergence to supergranular junctions of several magnetic flux patches of the same polarity, and it then rotated counterclockwise (CCW) for approximately 11 hr and showed up as a CCW rotating EUV cyclone, during which time the filament gradually evolved into a circular filament that surrounded the cyclone. When the calculated convergence and vortex flows appeared around the RNF during its formation and rotation phases, the injected magnetic helicity calculation also showed negative helicity accumulation during the RNF rotation that was consistent with the dextral chirality of the filament. Finally, the RNF rotation stopped and the cyclone disappeared, and, probably due to an emerging bipole and its forced cancellation with the RNF, the closure filament underwent an eruption along its axis in the (clockwise) direction opposite to the rotation directions of the RNF and cyclone. These observations suggest that the RNFs might play an important role in the formation of nearby small-scale circular filaments as they transport and inject magnetic energy and helicity, and the formation of the EUV cyclones may be a further manifestation of the helicity injected into the corona by the rotation of the RNFs in the photosphere. In addition, the new emerging bipole observed before the filament eruption might be responsible for destabilizing the system and triggering the magnetic reconnection which proves useful for the filament eruption.
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]	CORONAL MASS EJECTIONS ; SUNSPOT ROTATION ; VORTEX FLOWS ; FLUX-DENSITY ; PHOTOSPHERIC FLOWS ; SOLAR PROMINENCES ; HELICITY ; TORNADOES ; MOTION ; FOOTPOINTS
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/803/2/86/meta
语种	英语
WOS记录号	WOS:000353524500038
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6269]
专题	云南天文台_太阳物理研究组
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China 3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
推荐引用方式 GB/T 7714	Yang B,Jiang YC,Yang JY,et al. THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN[J]. ASTROPHYSICAL JOURNAL,2015,803(2).
APA	Yang B,Jiang YC,Yang JY,Hong JC,&Xu Z.(2015).THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN.ASTROPHYSICAL JOURNAL,803(2).
MLA	Yang B,et al."THE FORMATION AND ERUPTION OF A SMALL CIRCULAR FILAMENT DRIVEN BY ROTATING MAGNETIC STRUCTURES IN THE QUIET SUN".ASTROPHYSICAL JOURNAL 803.2(2015).