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Laboratory Study on Disconnection Events in Comets

文献类型：期刊论文

作者Zhong, Jia-Yong2,8; Yuan, Da-Wei3; Wang, Wei-Min4,9; Fu, Si-Zu1,8; Li, Yu-Tong4,8,9; Huang, Xiu-Guang1,8; Zhu, Jian-Qiang8,11; Li, Yan-Fei4,9; Zhao, Gang3,8; Wang, Xiao-Gang14
刊名SCIENTIFIC REPORTS
出版日期2018-01-11
卷号8
DOI10.1038/s41598-017-18712-0
文献子类Article
英文摘要When comets interacting with solar wind, straight and narrow plasma tails will be often formed. The most remarkable phenomenon of the plasma tails is the disconnection event, in which a plasma tail is uprooted from the comet's head and moves away from the comet. In this paper, the interaction process between a comet and solar wind is simulated by using a laser-driven plasma cloud to hit a cylinder obstacle. A disconnected plasma tail is observed behind the obstacle by optical shadowgraphy and interferometry. Our particle-in-cell simulations show that the difference in thermal velocity between ions and electrons induces an electrostatic field behind the obstacle. This field can lead to the convergence of ions to the central region, resulting in a disconnected plasma tail. This electrostatic-field-induced model may be a possible explanation for the disconnection events of cometary tails.
WOS关键词SOLAR-WIND ; PLASMA TAIL ; COLLISIONLESS SHOCKS ; INTENSE LASERS ; ASTROPHYSICS ; JET ; RECONNECTION ; SIMULATIONS ; CRITERIA
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000419941000004
资助机构National Basic Research Program of China (973Program)(2013CBA01501) ; National Basic Research Program of China (973Program)(2013CBA01501) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB16010200 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB16010200 ; National Natural Science Foundation of China(11375262 ; National Natural Science Foundation of China(11375262 ; Science Challenge Project(TZ2016005) ; Science Challenge Project(TZ2016005) ; XDB07030300) ; XDB07030300) ; 11520101003 ; 11520101003 ; 11503041) ; 11503041) ; National Basic Research Program of China (973Program)(2013CBA01501) ; National Basic Research Program of China (973Program)(2013CBA01501) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB16010200 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB16010200 ; National Natural Science Foundation of China(11375262 ; National Natural Science Foundation of China(11375262 ; Science Challenge Project(TZ2016005) ; Science Challenge Project(TZ2016005) ; XDB07030300) ; XDB07030300) ; 11520101003 ; 11520101003 ; 11503041) ; 11503041)
源URL[http://ir.bao.ac.cn/handle/114a11/20316]  
专题国家天文台_光学天文研究部
作者单位1.China Acad Engn Phys, Shanghai Inst Laser Plasma, Shanghai 201800, Peoples R China
2.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
3.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
5.Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan
6.Natl Cent Univ, Dept Phys, Jhongli 32001, Taiwan
7.Shanghai Jiao Tong Univ, Key Lab Laser Plasmas MoE, Shanghai 200240, Peoples R China
8.Shanghai Jiao Tong Univ, CICIFSA, Shanghai 200240, Peoples R China
9.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
10.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China
推荐引用方式
GB/T 7714		 Zhong, Jia-Yong,Yuan, Da-Wei,Wang, Wei-Min,et al. Laboratory Study on Disconnection Events in Comets[J]. SCIENTIFIC REPORTS,2018,8.
APA Zhong, Jia-Yong.,Yuan, Da-Wei.,Wang, Wei-Min.,Fu, Si-Zu.,Li, Yu-Tong.,...&Wang, Chen.(2018).Laboratory Study on Disconnection Events in Comets.SCIENTIFIC REPORTS,8.
MLA Zhong, Jia-Yong,et al."Laboratory Study on Disconnection Events in Comets".SCIENTIFIC REPORTS 8(2018).

入库方式： OAI收割

来源：国家天文台

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