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NVST observations of collision-induced apparent fan-shaped jets

文献类型：期刊论文

作者Li, Ting1,2; Hou, Yijun1,2; Zhang, Jun1,2; Xiang, Yongyuan3
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2020-02-01
卷号492期号:2页码:2510-2516
ISSN号0035-8711
关键词Sun: activity Sun: atmosphere Sun: chromosphere Sun: faculae plages Sun: magnetic fields sunspots
DOI10.1093/mnras/stz3630
英文摘要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.
WOS关键词LIGHT BRIDGE ; DYNAMICS ; EJECTIONS ; FIELD ; FLUX
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
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000512297600070
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; Youth Innovation PromotionAssociation of CAS ; Youth Innovation PromotionAssociation of CAS ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; Youth Innovation PromotionAssociation of CAS ; Youth Innovation PromotionAssociation of CAS ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; Youth Innovation PromotionAssociation of CAS ; Youth Innovation PromotionAssociation of CAS ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; Youth Innovation PromotionAssociation of CAS ; Youth Innovation PromotionAssociation of CAS ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program
源URL[http://ir.bao.ac.cn/handle/114a11/54110]  
专题中国科学院国家天文台
通讯作者Li, Ting
作者单位1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Fuxian Solar Observ, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
推荐引用方式
GB/T 7714		 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, Yongyuan.(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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