scholarly journals Observations of multiple X-line structure in the Earth's magnetotail current sheet: A Cluster case study

2005 ◽  
Vol 32 (11) ◽  
Author(s):  
J. P. Eastwood
Keyword(s):  
Current Sheet ◽  
Line Structure ◽  
Magnetotail Current Sheet

A case study of magnetotail current sheet disruption and diversion

1988 ◽  
Vol 15 (7) ◽  
pp. 721-724 ◽  
Author(s):  
A. T. Y. Lui ◽  
R. E. Lopez ◽  
S. M. Krimigis ◽  
R. W. McEntire ◽  
L. J. Zanetti ◽  
...  
Keyword(s):  
Current Sheet ◽  
Magnetotail Current Sheet

Understanding magnetotail current sheet meso-scale structures using MHD simulations

2008 ◽  
Vol 41 (10) ◽  
pp. 1630-1642 ◽  
Author(s):  
Mostafa El-Alaoui ◽  
Maha Ashour-Abdalla ◽  
Jean Michel Bosqued ◽  
Robert L. Richard
Keyword(s):  
Current Sheet ◽  
Mhd Simulations ◽  
Scale Structures ◽  
Meso Scale ◽  
Magnetotail Current Sheet

scholarly journals The current sheet flapping motions induced by non-adiabatic ions: case study

2018 ◽  
Author(s):  
Xinhua Wei ◽  
Chunlin Cai ◽  
Henri Rème ◽  
Iannis Dandouras ◽  
George Parks
Keyword(s):  
Magnetic Field ◽  
Current Sheet ◽  
Field Line ◽  
Magnetic Field Line ◽  
Plasma Sheet ◽  
Plasma Sources ◽  
Shear Structures ◽  
Particle Population ◽  
Alternating Bending

Abstract. In this paper, we analyzed the y-component of magnetic field line curvature in the plasma sheet and found that there are two kinds of shear structures of the flapping current sheet, i.e. symmetric and antisymmetric. The alternating bending orientations of guiding field are exactly corresponding to alternating north-south asymmetries of the bouncing ion population in the sheet center. Those alternating asymmetric plasma sources consequently induce the current sheet flapping motion as a driver. In addition, a substantial particle population with dawnward motion was observed in the center of a bifurcated current sheet. This population is identified as the quasi-adiabatic particles, and provides a net current opposite to the conventional cross-tail current.

scholarly journals Physical Implication of Two Types of Reconnection Electron Diffusion Regions With and Without Ion‐Coupling in the Magnetotail Current Sheet

2020 ◽  
Vol 47 (21) ◽  
Author(s):  
Rongsheng Wang ◽  
Quanming Lu ◽  
San Lu ◽  
Christopher T. Russell ◽  
J. L. Burch ◽  
...  
Keyword(s):  
Current Sheet ◽  
Electron Diffusion ◽  
Physical Implication ◽  
Magnetotail Current Sheet

scholarly journals Global properties of magnetotail current sheet flapping: THEMIS perspectives

2009 ◽  
Vol 27 (1) ◽  
pp. 319-328 ◽  
Author(s):  
A. Runov ◽  
V. Angelopoulos ◽  
V. A. Sergeev ◽  
K.-H. Glassmeier ◽  
U. Auster ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Current Sheet ◽  
Growth Phase ◽  
Timing Analysis ◽  
Wave Length ◽  
Global Properties ◽  
The Cross ◽  
Magnetic Field Variations ◽  
The Magnetic Field ◽  
Magnetotail Current Sheet

Abstract. A sequence of magnetic field oscillations with an amplitude of up to 30 nT and a time scale of 30 min was detected by four of the five THEMIS spacecraft in the magnetotail plasma sheet. The probes P1 and P2 were at X=−15.2 and −12.7 RE and P3 and P4 were at X=−7.9 RE. All four probes were at −6.5>Y>−7.5 RE (major conjunction). Multi-point timing analysis of the magnetic field variations shows that fronts of the oscillations propagated flankward (dawnward and Earthward) nearly perpendicular to the direction of the magnetic maximum variation (B1) at velocities of 20–30 km/s. These are typical characteristics of current sheet flapping motion. The observed anti-correlation between ∂B1/∂t and the Z-component of the bulk velocity make it possible to estimate a flapping amplitude of 1 to 3 RE. The cross-tail scale wave-length was found to be about 5 RE. Thus the flapping waves are steep tail-aligned structures with a lengthwise scale of >10 RE. The intermittent plasma motion with the cross-tail velocity component changing its sign, observed during flapping, indicates that the flapping waves were propagating through the ambient plasma. Simultaneous observations of the magnetic field variations by THEMIS ground-based magnetometers show that the flapping oscillations were observed during the growth phase of a substorm.

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