IGGCAS OpenIR  > 地球与行星物理院重点实验室
Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail
Lu, HaoYu1; Ge, YaSong2; Sun, Chao1
2020-08-11
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN1674-7321
Pages9
AbstractIt has been confirmed that dipolarization fronts (DFs) are the result of the interchange instability in the Earth's magnetotail. In this paper, we use a Hall MHD model to simulate the evolution of the interchange instability that produces DFs along the leading edge. A test particle simulation is performed to study the physical phenomenon of ion acceleration at the DF. The numerical simulation indicates that almost all particles move earthward and dawnward and then drift to the tail. The DF-reflected ion population at the duskside appears earlier as a consequence of the asymmetric Hall electric field. Ions that are distributed in a dawn-dusk asymmetric semicircle behind the DF tend to be accelerated to higher energies (>13.5 keV). These high-energy particles eventually concentrate in the dawnside. Ions experience effective acceleration by the dawnward electric field, while they drift through the dawn flank at the front, toward the tail.
Keyworddipolarization fronts interchange instability ion acceleration Hall MHD simulation
DOI10.1007/s11431-019-1505-6
Funding OrganizationChina's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordSTATISTICAL CHARACTERISTICS ; ELECTRON ACCELERATION ; FLOW ; SIMULATION ; RECONNECTION ; EVOLUTION ; EVENT ; SHEET
Language英语
Funding ProjectChina's National Space Administration (CNSA)[D020103] ; National Natural Science Foundation of China[41474144] ; National Natural Science Foundation of China[41674176]
Funding OrganizationChina's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS IDWOS:000560406400001
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97645
Collection地球与行星物理院重点实验室
Corresponding AuthorLu, HaoYu
Affiliation1.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Lu, HaoYu,Ge, YaSong,Sun, Chao. Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020:9.
APA Lu, HaoYu,Ge, YaSong,&Sun, Chao.(2020).Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,9.
MLA Lu, HaoYu,et al."Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2020):9.
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