中国科学院国家空间科学中心机构知识库
Advanced  
NSSC OpenIR  > 空间科学部  > 期刊论文
题名: Double-peaked core field of flux ropes during magnetic reconnection
作者: Liu, Chaoxu; Feng, Xueshang; Nakamura, Rumi; Guo, Jianpeng; Wang, Rongsheng
作者部门: 空间科学部
通讯作者: Feng, XS (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
关键词: flux rope ; core field ; Hall MHD
刊名: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN号: 2169-9380
出版日期: 2017
卷号: 122, 期号:6, 页码:6374-6384
收录类别: SCI
项目资助者: National Natural Science Foundation of China [41231068, 41531073, 41204127] ; Specialized Research Fund for State Key Laboratories
英文摘要: A flux rope event observed in the magnetotail exhibits a double-peaked core field feature. The generation of such double-peaked feature within the flux rope is explored with Hall-MHD simulations and theoretical analysis based on multiple X line reconnection. Simulations with a guide field produce flux ropes bounded by two active X lines in the thin current sheet. The guide field, combined with Hall-generated field, leads to a donut-shaped core field (having a double-peaked profile) near the magnetic separatrix. Subsequently, it rotates into the central region of the flux rope, which tends to be the force-free configuration. The analysis shows that there are three major factors affecting the evolution of the core field, including the guide field, convective, and Hall terms originating from the generalized Ohm's law. The convective term can become stronger near the central region of flux rope, and the Hall term dominates the region next to the separatrix during the early stages of the flux rope evolution. It implies that several different factors contribute to the generation of the double-peaked core field. The results may help explain a variety of core fields available in magnetotail flux ropes.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6016
Appears in Collections:空间科学部_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2017jgra53602.pdf(1342KB)期刊论文作者接受稿限制开放View 联系获取全文
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liu, Chaoxu]'s Articles
[Feng, Xueshang]'s Articles
[Nakamura, Rumi]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liu, Chaoxu]‘s Articles
[Feng, Xueshang]‘s Articles
[Nakamura, Rumi]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2017jgra53602.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院国家空间科学中心 - Feedback
Powered by CSpace