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Photospheric magnetic field changes associated with the activations of a quiescent filament
Jiang YC(姜云春)1,2; Wang, JX1; Jiang, Y
发表期刊ASTRONOMY & ASTROPHYSICS
2000-04
卷号356期号:3页码:1055-1066
产权排序第1完成单位
收录类别SCI
关键词Sun : Prominences Sun : Filaments Sun : Activity Sun : Magnetic Fields
摘要The disturbances of a quiescent filament and associated evolution of photospheric magnetic field were examined. The whole filament was broken into three sections by two filament breaks. In different sections, three distinct disturbances took place: two major ones with similar characteristics and a transient one. The presence of filament twist and the highly sheared filament magnetic field were clearly revealed by the velocity patterns during the two major disturbances. In photospheric magnetograms, both filament breaks located between opposite polarity magnetic elements with obvious changes of magnetic flux. The two opposite polarity knots at one break showed increasing flux but no interaction. At the other break, however, the two opposite polarity elements not only increased in flux but also collided with each other, and so led to a relatively steep field gradient across the axis of the filament; it was evident that flux cancellation and resultant reduction of field gradient occurred here. In addition, several ephemeral regions and small cancelling magnetic features (CMFs) appeared in the filament channel in the course of filament disturbances. The cause of the filament disturbances was interpreted as slow magnetic reconnection resulting from the flux emergence and cancellation, and the possible formation process of filament twist is discussed.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
URL查看原文
归档日期2000-12-31
WOS记录号WOS:000087446700033
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]TWISTED FLUX-TUBE ; SOLAR PROMINENCES ; ACTIVE REGION ; H-ALPHA ; PATTERNS ; CORONA ; MODEL
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6033
专题太阳物理研究组
通讯作者Jiang, Y
作者单位1.Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Science, Beijing 100012, P.R. China
2.Yunnan Astronomical Observatory, Chinese Academy of Science, Kunming 650011, P.R. China
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Jiang YC,Wang, JX,Jiang, Y. Photospheric magnetic field changes associated with the activations of a quiescent filament[J]. ASTRONOMY & ASTROPHYSICS,2000,356(3):1055-1066.
APA Jiang YC,Wang, JX,&Jiang, Y.(2000).Photospheric magnetic field changes associated with the activations of a quiescent filament.ASTRONOMY & ASTROPHYSICS,356(3),1055-1066.
MLA Jiang YC,et al."Photospheric magnetic field changes associated with the activations of a quiescent filament".ASTRONOMY & ASTROPHYSICS 356.3(2000):1055-1066.
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