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NVST observations of collision-induced apparent fan-shaped jets
Li, Ting1,2; Hou, Yijun1,2; Zhang, Jun1,2; Xiang YY(向永源)3
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2020-02-01
卷号492期号:2页码:2510-2516
DOI10.1093/mnras/stz3630
产权排序第3完成单位
收录类别SCI ; EI
关键词Sun: activity Sun: atmosphere Sun: chromosphere Sun: faculae plages Sun: magnetic fields sunspots
摘要

Using high-quality Ha observations from the New Vacuum Solar Telescope, we first report apparent fan-shaped jets (AFJs) generated during the interaction between primary fan-shaped jets (FJs) and nearby facula magnetic structure. The primary FJs were intermittently launched from a sunspot penumbra with negative-polarity magnetic fields in active region 12740 on 2019 May 6, accompanied by impulsive brightenings at the base. While the propagating FJ encountered and collided with the negative-polarity magnetic structure of the west facula, the density of jet material was enhanced to the east of the facula. Meanwhile, the jet structures exhibited a deflection towards the north-west at the jet-facula collision location. Then the primary FJ evolved into two parts, with one part being reflected away from the facula and the other part forming an AFJ. Easily distinguished from the primary FJ, the ejecting AFJ was more ordered and had an apparent end at the facula. The AFJ was impulsively accelerated to speeds of 100 km s(-1), and reached lengths of up to 40 Mm. The observed AFJ had a similar morphology to the fan-shaped quasi-separatrix layer (QSL) between the penumbra and facula magnetic systems, implying that the material of the AFJ was mainly guided by the fan plane of the QSL. We suggest that the collision does not cause a change in the field-line connectivity and only leads to the redistribution of jet material.

资助项目National Key R&D Program of China[2019YFA0405000] ; National Natural Science Foundations of China[11773039] ; National Natural Science Foundations of China[11533008] ; National Natural Science Foundations of China[11903050] ; National Natural Science Foundations of China[11790304] ; National Natural Science Foundations of China[11673035] ; National Natural Science Foundations of China[11673034] ; National Natural Science Foundations of China[11873059] ; National Natural Science Foundations of China[11790300] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050] ; Young Elite Scientists Sponsorship Program by CAST[2018QNRC001] ; Youth Innovation PromotionAssociation of CAS[2017078] ; NAOC Nebula Talents Program
项目资助者National Key R&D Program of China[2019YFA0405000] ; National Natural Science Foundations of China[11773039, 11533008, 11903050, 11790304, 11673035, 11673034, 11873059, 11790300] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050] ; Young Elite Scientists Sponsorship Program by CAST[2018QNRC001] ; Youth Innovation PromotionAssociation of CAS[2017078] ; NAOC Nebula Talents Program
语种英语
学科领域天文学 ; 太阳与太阳系
学科门类理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000512297600070
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LIGHT BRIDGE ; DYNAMICS ; EJECTIONS ; FIELD ; FLUX
EI入藏号20221712021356
EI主题词Magnetic fields
EI分类号701.2 Magnetism: Basic Concepts and Phenomena - 708.4 Magnetic Materials
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/22415
专题抚仙湖太阳观测和研究基地
通讯作者Li, Ting
作者单位1.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
3.Fuxian Solar Observatory, Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
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Li, Ting,Hou, Yijun,Zhang, Jun,et al. NVST observations of collision-induced apparent fan-shaped jets[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,492(2):2510-2516.
APA Li, Ting,Hou, Yijun,Zhang, Jun,&Xiang YY.(2020).NVST observations of collision-induced apparent fan-shaped jets.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,492(2),2510-2516.
MLA Li, Ting,et al."NVST observations of collision-induced apparent fan-shaped jets".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 492.2(2020):2510-2516.
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