The Kelvin-Helmholtz instability under Parker-Spiral Interplanetary Magnetic Field conditions at the magnetospheric flanks

被引：15

作者：

Adamson, E. ^{[1
]}

Nykyri, K. ^{[1
]}

Otto, A. ^{[2
]}

机构：

[1] Embry Riddle Aeronaut Univ, 600 S Clyde Morris Blvd, Daytona Beach, FL 32114 USA

[2] Univ Alaska Fairbanks, Inst Geophys, 903 Koyukuk Dr, Fairbanks, AK 99775 USA

来源：

ADVANCES IN SPACE RESEARCH | 2016年 / 58卷 / 02期

基金：

美国国家科学基金会;

关键词：

Kelvin-Helmholtz instability; Magnetopause; Plasma sheet asymmetry; 3D MHD simulations; Plasma waves and instabilities; Plasma transport; INTERACTION OFMAGNETIC RECONNECTION; KINETIC ALFVEN WAVES; PLASMA TRANSPORT; SOLAR-WIND; MAGNETOTAIL BOUNDARY; GEOTAIL OBSERVATIONS; MAGNETOPAUSE; SIMULATION; SHEAR; SIGNATURES;

D O I：

10.1016/j.asr.2015.09.013

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

We have generated fully three-dimensional, high-resolution magnetohydrodynamic (MHD) simulations of the Kelvin-Helmholtz (KH) Instability during Parker-Spiral Interplanetary Magnetic Field (IMF) conditions at the dawnside magnetospheric flank magnetopause. Results of these simulations show that, although the draping of a strong tangential magnetic field component around the magnetopause, tailward of the terminator (due to the Parker-Spiral orientation), tends to stabilize the growth of such instabilities within the shear-flow plane, Kelvin-Helmholtz waves with a k-vector tilted out of this plane may, nonetheless, develop into the nonlinear phase. This result suggests that obliquely propagating KH waves may contribute to the dawn-dusk asymmetries observed in plasma sheet parameters. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：218 / 230

页数：13

共 67 条

[1] On the role of current dissipation in the energization of coronal bright points [J].

Adamson, E. ;

Buechner, J. ;

Otto, A. .

ASTRONOMY & ASTROPHYSICS, 2013, 557

[2] ADVANCES IN MAGNETOPAUSE KELVIN-HELMHOLTZ INSTABILITY STUDIES [J].

BELMONT, G ;

CHANTEUR, G .

PHYSICA SCRIPTA, 1989, 40 (01) :124-128

[3]

Brackbill JU, 2001, PHYS REV LETT, V86, P2329, DOI 10.1103/PhysRevLett86.2329

[4]

Cattaneo MBB, 2010, ANN GEOPHYS-GERMANY, V28, P893, DOI 10.5194/angeo-28-893-2010

[5] Tearing instability, Kelvin-Helmholtz instability, and magnetic reconnection [J].

Chen, Q ;

Otto, A ;

Lee, LC .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1997, 102 (A1) :151-161

[6] Solar wind driving of magnetospheric ULF waves: Pulsations driven by velocity shear at the magnetopause [J].

Claudepierre, S. G. ;

Elkington, S. R. ;

Wiltberger, M. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2008, 113 (A5)

[7] Two-dimensional hybrid simulations of superdiffusion at the magnetopause driven by Kelvin-Helmholtz instability [J].

Cowee, M. M. ;

Winske, D. ;

Gary, S. P. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2009, 114

[8] A statistical study into the spatial distribution and dawn-dusk asymmetry of dayside magnetosheath ion temperatures as a function of upstream solar wind conditions [J].

Dimmock, A. P. ;

Nykyri, K. ;

Karimabadi, H. ;

Osmane, A. ;

Pulkkinen, T. I. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2015, 120 (04) :2767-2782

[9] Mapping of the quasi-periodic oscillations at the flank magnetopause into the ionosphere [J].

Dougal, E. R. ;

Nykyri, K. ;

Moore, T. W. .

ANNALES GEOPHYSICAE, 2013, 31 (11) :1993-2011

[10] Competing mechanisms of plasma transport in inhomogeneous configurations with velocity shear: The solar-wind interaction with earth's magnetosphere [J].

Faganello, M. ;

Califano, F. ;

Pegoraro, F. .

PHYSICAL REVIEW LETTERS, 2008, 100 (01)

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