Formation of self-organized shear structures in thin current sheets

doi:10.1002/2014JA020974

CORC > 地质与地球物理研究所 > 中国科学院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

	Formation of self-organized shear structures in thin current sheets
	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
	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
DOI	10.1002/2014JA020974
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)
内容类型	期刊论文
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.