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A small-scale EUV jet in the quiet Sun region
Hong JC(洪俊超)1,2; Jiang YC(姜云春)1; Zheng RS(郑瑞生)1; Bi Y(毕以)1
会议录名称Proceedings of the International Astronomical Union (IAU) Symposium - Solar and Astrophysical Dynamos and Magnetic Activity
2013-07
卷号294
页码555-559
DOI10.1017/S1743921313003207
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会议名称the 294th International Astronomical Union (IAU) Symposium - Solar and Astrophysical Dynamos and Magnetic Activity
会议日期2012-08-27
会议地点Beijing, China
关键词Sun: Magnetic Fields Sun: Evolution
摘要Solar jets are typical proxies of small-scale magnetic reconnection events in the solar atmosphere. In this paper, we observe a small-scale jet in a solar quiet region, using data from SDO/Atmospheric Imaging Assembly (AIA), Helioseismic and Magnetic Imager (HMI), with supplemental data from STEREO/EUVI. From HMI magnetograms and calculated photospheric flows, we find that the jet is related to the interaction between unipolar network fields and emerging internetwork bipoles at the boundary of a supergranular cell. In AIA extreme-ultraviolet images, the jet actually includes two successive plasma ejections along different directions. The first ejection follows a distorted path which guides plasma into a small filament channel nearby. However, the second one shot straight along another direction that is parallel with extrapolated potential magnetic field lines on the local. According to these observations, we advocate that during the jet eruption new emerging magnetic fields are reconnecting at the edge of the supergranular cell with different kinds of ambient fields from low (magnetic canopy) to high (high-reaching loops) to allow the occurrence of successive ejections along different directions.
语种英语
学科领域天文学
出版者Cambridge University Press
URL查看原文
归档日期2013-08-13
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文献类型会议论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6569
专题太阳物理研究组
作者单位1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, P.R.China
2.Graduate School of Chinese Academy of Sciences, Beijing, P.R. China
推荐引用方式
GB/T 7714
Hong JC,Jiang YC,Zheng RS,et al. A small-scale EUV jet in the quiet Sun region[C]:Cambridge University Press,2013:555-559.
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