首站-论文投稿智能助手
典型文献
Observations of kinetic Alfvén waves and associated electron acceleration in the plasma sheet boundary layer
文献摘要:
Kinetic Alfvén waves (KAWs), with a strong parallel disturbed electric field, play an important role in energy transport and particle acceleration in the magnetotail. On the basis of high-resolution observations of the Magnetospheric Multiscale (MMS) Mission, we present a detailed description of the acceleration process of electrons by KAWs in the plasma sheet boundary layer (PSBL). The MMS observed strong electromagnetic disturbances carrying a parallel disturbed electric field with an amplitude of up to 8 mV/m. The measured ratio of the electric to magnetic field perturbations was larger than the local Alfvén speed and was enhanced as the frequency increased, consistent with the theoretical predictions for KAWs. This evidence indicates that the electromagnetic disturbances should be identified as KAWs. During the KAWs, the energy flux of electrons at energies above 1 keV in the parallel and anti-parallel directions are significantly enhanced, implying occurrences of electron beams at higher energies. Additionally, the KAWs became more electrostatic-like and filled with high-frequency ion acoustic waves. The energy enhancement of electron beams is in accordance with the derived work done with the observed parallel disturbed electric field of KAWs, indicating electron acceleration caused by KAWs. Therefore, these results provide direct evidence of electron acceleration by KAWs embodying electrostatic ion acoustic waves in the PSBL.
文献关键词:
作者姓名:
ZeHao Zhang;ZhiGang Yuan;ShiYong Huang;XiongDong Yu;ZuXiang Xue;Dan Deng;Zheng Huang
作者机构:
School of Electronic Information,Wuhan University,Wuhan 430072,China
引用格式:
[1]ZeHao Zhang;ZhiGang Yuan;ShiYong Huang;XiongDong Yu;ZuXiang Xue;Dan Deng;Zheng Huang-.Observations of kinetic Alfvén waves and associated electron acceleration in the plasma sheet boundary layer)[J].地球与行星物理(英文),2022(05):465-473
A类:
magnetotail,Magnetospheric,PSBL
B类:
Observations,kinetic,Alfv,waves,associated,acceleration,plasma,sheet,boundary,layer,Kinetic,KAWs,strong,parallel,disturbed,electric,field,play,important,role,energy,transport,particle,On,basis,resolution,observations,Multiscale,MMS,Mission,we,present,detailed,description,process,electrons,by,observed,electromagnetic,disturbances,carrying,amplitude,up,mV,measured,perturbations,was,larger,than,local,speed,enhanced,frequency,increased,consistent,theoretical,predictions,This,evidence,indicates,that,should,identified,During,flux,energies,above,keV,anti,directions,are,significantly,implying,occurrences,beams,higher,Additionally,became,more,electrostatic,like,filled,acoustic,enhancement,accordance,derived,work,done,indicating,caused,Therefore,these,results,provide,embodying
AB值:
0.468194
相似文献
Under the surface:Pressure-induced planetary-scale waves,volcanic lightning,and gaseous clouds caused by the submarine eruption of Hunga Tonga-Hunga Ha'apai volcano
David A.Yuen;Melissa A.Scruggs;Frank J.Spera;Yingcai Zheng;Hao Hu;Stephen R.McNutt;Glenn Thompson;Kyle Mandli;Barry R.Keller;Songqiao Shawn Wei;Zhigang Peng;Zili Zhou;Francesco Mulargia;Yuichiro Tanioka-Columbia University,Dept.of Applied Physics and Applied Mathematics,New York,NY,10027,USA;Ocean University of China,School of Computer Science and Marine Geosciences,Qingdao,266100,China;University of California,Santa Barbara,Dept.of Earth Science,1006 Webb Hall,University of California,Santa Barbara,CA,93106,USA;University of Houston,Dept of Earth and Atmospheric Sciences,Science&Research Bldg.1,3507 Cullen Boulevard,#312,Houston,TX,77004,USA;University of South Florida,School of Geosciences,Tampa,FL,USA;Mission Beach,CA,USA;Michigan State University,Dept.of Earth and Environmental Sciences,288 Farm Ln Bldg,Room 207,East Lansing MI,48824,USA;Georgia Institute of Technology,School of Atmospheric and Earth Sciences,North Avenue,Atlanta,GA,30332,USA;University of Southern California,Sonny Astani Dept.of Civil&Environmental Engineering Kaprielian Hall,Los Angeles,CA,90089-2531,USA;University of Bologna,Dept.of Geological Sciences,Via Zamboni,33,40126,Bologna,Italy;Hokkaido University,Division of Earth System Science,N10W5,Sapporo,Hokkaido,060-0810,Japan
Study of the fast electron behavior in electron cyclotron current driven plasma on J-TEXT
Xiaobo ZHANG;Wei YAN;Zhongyong CHEN;Jiangang FANG;Junli ZHANG;You LI;Xixuan CHEN;Yunong WEI;Ruihai TONG;Zhifang LIN;Yu ZHONG;Lingke MOU;Feng LI;Weikang ZHANG;Lu WANG;Donghui XIA;Zhonghe JIANG;Zhoujun YANG;Nengchao WANG;Zhipeng CHEN;Yonghua DING;Yunfeng LIANG;Yan PAN;J-TEXT Team-International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China;Southwestern Institute of Physics,Chengdu 610041,People's Republic of China;School of Electrical Engineering&Automation,Jiangsu Normal University,Xuzhou 221116,People's Republic of China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,People's Republic of China;Forschungszentrum Jülich GmbH,Institut für Energie-und Klimaforschung—Plasmaphysik,D-52425 Jülich,Germany
Evidence of vapor shielding effect on heat flux loaded on flowing liquid lithium limiter in EAST
Chenglong LI;Guizhong ZUO;R MANIGI;K TRITZ;D ANDRUCZYK;Bin ZHANG;Ruirong LIANG;D OLIVER;Zhen SUN;Wei XU;Xiancai MENG;Ming HUANG;Zhongliang TANG;Binfu GAO;Ning YAN;Jiansheng HU-Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,People's Republic of China;University of Science and Technology of China,Hefei 230026,People's Republic of China;Princeton University Plasma Physics Laboratory Princeton,Princeton NJ 08543,United States of America;Johns Hopkins University,Baltimore,MD 21211,United States of America;Center for Plasma Material Interactions,Department of Nuclear,Plasma and Radiological Engineering,University of Illinois Urbana-Champaign,Urbana IL 61801,United States of America;Institute of Energy,Hefei Comprehensive National Science Center,Hefei 230026,People's Republic of China;CAS Key Laboratory of Photovoltaic and Energy Conservation Materials,Hefei 230031,People's Republic of China
机标中图分类号,由域田数据科技根据网络公开资料自动分析生成,仅供学习研究参考。