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NVST observations of collision-induced apparent fan-shaped jets

文献类型:期刊论文

AuthorLi, Ting1,2; Hou, Yijun1,2; Zhang, Jun1,2; Xiang YY(向永源)3
SourceMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Issued Date2020-02-01
Volume492Issue:2Pages:2510-2516
KeywordSun: activity Sun: atmosphere Sun: chromosphere Sun: faculae plages Sun: magnetic fields sunspots
ISSN0035-8711
DOI10.1093/mnras/stz3630
Rank第3完成单位
SubtypeArticle
English Abstract

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.

Subject天文学 ; 太阳与太阳系
URL查看原文
Publish PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
Funding ProjectNational 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 KeywordLIGHT BRIDGE ; DYNAMICS ; EJECTIONS ; FIELD ; FLUX
WOS Research AreaAstronomy & Astrophysics
Language英语
PublisherOXFORD UNIV PRESS
WOS IDWOS:000512297600070
Funding OrganizationNational 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
源URL[http://ir.ynao.ac.cn/handle/114a53/22414]  
Collection云南天文台_抚仙湖太阳观测站
Corresponding AuthorLi, Ting
Affiliation1.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
Recommended Citation
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 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.

入库方式: OAI收割

来源:云南天文台

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