NSSC OpenIR  > 空间科学部
Magnetic depression and electron transport in an ion-scale flux rope associated with Kelvin-Helmholtz waves
Tang, Binbin; Li, Wenya; Wang, Chi; Dai, Lei; Khotyaintsev, Yuri; Lindqvist, Per-Arne; Ergun, Robert; Le Contel, Olivier; Pollock, Craig; Russell, Christopher; Burch, James; Tang, BB (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
作者部门空间科学部
发表期刊ANNALES GEOPHYSICAE
2018
卷号36期号:3页码:879-889
ISSN0992-7689
语种英语
关键词Magnetospheric Physics (Magnetopause Cusp And Boundary Layers Solar Wind-magnetosphere Interactions)
摘要We report an ion-scale magnetic flux rope (the size of the flux rope is similar to 8.5 ion inertial lengths) at the trailing edge of Kelvin-Helmholtz (KH) waves observed by the Magnetospheric Multiscale (MMS) mission on 27 September 2016, which is likely generated by multiple X-line reconnection. The currents of this flux rope are highly filamentary: in the central flux rope, the current flows are mainly parallel to the magnetic field, supporting a local magnetic field increase at about 7 nT, while at the edges the current filaments are predominantly along the antiparallel direction, which induce an opposing field that causes a significant magnetic depression along the axis direction (> 20 nT), meaning the overall magnetic field of this flux rope is depressed compared to the ambient magnetic field. Thus, this flux rope, accompanied by the plasma thermal pressure enhancement in the center, is referred to as a crater type. Intense lower hybrid drift waves (LHDWs) are found at the magnetospheric edge of the flux rope, and the wave potential is estimated to be similar to 17% of the electron temperature. Though LHDWs may be stabilized by the mechanism of electron resonance broadening, these waves could still effectively enable diffusive electron transports in the cross-field direction, corresponding to a local density dip. This indicates LHDWs could play important roles in the evolution of crater flux ropes.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6359
专题空间科学部
通讯作者Tang, BB (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
推荐引用方式
GB/T 7714
Tang, Binbin,Li, Wenya,Wang, Chi,et al. Magnetic depression and electron transport in an ion-scale flux rope associated with Kelvin-Helmholtz waves[J]. ANNALES GEOPHYSICAE,2018,36(3):879-889.
APA Tang, Binbin.,Li, Wenya.,Wang, Chi.,Dai, Lei.,Khotyaintsev, Yuri.,...&Tang, BB .(2018).Magnetic depression and electron transport in an ion-scale flux rope associated with Kelvin-Helmholtz waves.ANNALES GEOPHYSICAE,36(3),879-889.
MLA Tang, Binbin,et al."Magnetic depression and electron transport in an ion-scale flux rope associated with Kelvin-Helmholtz waves".ANNALES GEOPHYSICAE 36.3(2018):879-889.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2018363879-889.pdf(2598KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Tang, Binbin]的文章
[Li, Wenya]的文章
[Wang, Chi]的文章
百度学术
百度学术中相似的文章
[Tang, Binbin]的文章
[Li, Wenya]的文章
[Wang, Chi]的文章
必应学术
必应学术中相似的文章
[Tang, Binbin]的文章
[Li, Wenya]的文章
[Wang, Chi]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。