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Formation of self-organized shear structures in thin current sheets

文献类型：期刊论文

作者Malova, H. V.1,2; Mingalev, O. V.3; Grigorenko, E. E.2; Mingalev, I. V.3; Melnik, M. N.3; Popov, V. Yu.2,4,5; Delcourt, D. C.6; Petrukovich, A. A.2; Shen, C.7; Rong, Z. J.8
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2015-06-01
卷号120期号:6页码:4800-4824
关键词magnetotail current sheet magnetic shear kinetic theory particle dynamics numerical modeling
DOI10.1002/2014JA020974
文献子类Article
英文摘要Self-consistent kinetic (particle-in-cell) model of magnetotail thin current sheet (TCS) is used to understand the formation of self-consistent sheared magnetic structures. It is shown that shear configurations appear in TCS as a result of self-consistent evolution of some initial magnetic perturbation at the current sheet center. Two general shapes of shear TCS components are found as a function of the transverse coordinate: symmetric and antisymmetric. We show that TCS formation goes together with the emergence of field-aligned currents in the center of the current sheet, as a result of north-south asymmetry of quasi-adiabatic ion motions. Ion drift currents can also contribute to the magnetic shear evolution, but their role is much less significant, their contribution depending upon the normal component B-z and the amplitude of the initial perturbation in TCS. Parametric maps illustrating different types of TCS equilibria are presented that show a higher probability of formation of symmetric shear TCS configuration at lower values of the normal magnetic component.
WOS关键词MAGNETOTAIL CURRENT SHEET ; MAGNETIC-FIELD COMPONENT ; MODEL CURRENT SHEETS ; CROSS-TAIL CURRENT ; PLASMA SHEET ; GEOMAGNETIC TAIL ; EARTHS MAGNETOTAIL ; BY-COMPONENT ; PARTICLE-ACCELERATION ; CLUSTER OBSERVATIONS
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000358199100054
资助机构Division of Physical Sciences of the RAS(OFN-15) ; Division of Physical Sciences of the RAS(OFN-15) ; RFBR(14-02-01269 ; RFBR(14-02-01269 ; ANF-a ; ANF-a ; (HIII-248.2014.2) ; (HIII-248.2014.2) ; 14-05-91000 ; 14-05-91000 ; 13-02-00454 ; 13-02-00454 ; 14-02-00769) ; 14-02-00769) ; Division of Physical Sciences of the RAS(OFN-15) ; Division of Physical Sciences of the RAS(OFN-15) ; RFBR(14-02-01269 ; RFBR(14-02-01269 ; ANF-a ; ANF-a ; (HIII-248.2014.2) ; (HIII-248.2014.2) ; 14-05-91000 ; 14-05-91000 ; 13-02-00454 ; 13-02-00454 ; 14-02-00769) ; 14-02-00769)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62325]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位1.Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia
2.RAS, Space Res Inst, Moscow 117901, Russia
3.RAS, Inst Appl Phys, Cola Sci Ctr, Apatity, Russia
4.Moscow MV Lomonosov State Univ, Phys Dept Lomonosov, Moscow, Russia
5.Finance Univ Govt Russian Federat, Dept Appl Math & Comp Sci, Moscow, Russia
6.Ecole Polytech, CNRS, Lab Phys Plasmas, F-91128 Palaiseau, France
7.Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China
8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Malova, H. V.,Mingalev, O. V.,Grigorenko, E. E.,et al. Formation of self-organized shear structures in thin current sheets[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2015,120(6):4800-4824.
APA Malova, H. V..,Mingalev, O. V..,Grigorenko, E. E..,Mingalev, I. V..,Melnik, M. N..,...&Zelenyi, L. M..(2015).Formation of self-organized shear structures in thin current sheets.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,120(6),4800-4824.
MLA Malova, H. V.,et al."Formation of self-organized shear structures in thin current sheets".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 120.6(2015):4800-4824.

入库方式： OAI收割

来源：地质与地球物理研究所

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