Electrostatic turbulence in the Earth's central plasma sheet produced by multiple-ring ion distributions

1992 ◽  
Vol 97 (A2) ◽  
pp. 1533 ◽  
Author(s):  
J. D. Huba ◽  
J. Chen ◽  
R. R. Anderson
Keyword(s):  
Plasma Sheet ◽  
Ion Distributions ◽  
Central Plasma ◽  
Central Plasma Sheet ◽  
Multiple Ring

scholarly journals Origin of some anisotropic tailward flows in the plasma sheet

2002 ◽  
Vol 20 (10) ◽  
pp. 1559-1575 ◽  
Author(s):  
J. A. Wanliss ◽  
R. D. Sydora ◽  
G. Rostoker ◽  
R. Rankin
Keyword(s):  
Plasma Sheet ◽  
Ion Beam ◽  
Particle Model ◽  
Ion Distributions ◽  
Central Plasma ◽  
Nonadiabatic Effects ◽  
Equatorial Current ◽  
Central Plasma Sheet ◽  
Velocity Moments ◽  
Earthward Flow

Abstract. We use a test particle model to explore anisotropy and fast flows in the central plasma sheet (CPS) that are a consequence of plasma sheet boundary layer (PSBL) ion beam dynamics. Ion distributions and flows (velocity moments) in the CPS and equatorial current sheet (CS) are compared and we find that mirroring of initially earthward beams from the PSBL, and their subsequent convection to the CS region, results in strong anisotropy throughout the CPS. At higher latitudes, velocity moments are field-aligned and feature earthward flow. Deeper in the CPS, velocity moments yield flows in the anti-earthward direction. There is no clear distinction between the PSBL and CPS, since velocity distributions with large streaming components occur throughout the model CPS, but in the CS region they are anisotropic and nongyrotropic. In the CS region velocity moments can feature anti-earthward cross field flows. These tailward flows (> 400 km/s) are observed in the CS region between X = - 20 to - 30 RE due to nonadiabatic effects. Model results suggest that fast tailward plasma flows can be obtained without necessarily appealing to magnetotail processes associated with dynamic geomagnetic activity.Key words. Magnetospheric physics (magnetospheric con-figuration and dynamics) – Space plasma physics (charge particle motion and acceleration; numerical simulation studies)

scholarly journals On energetic electrons (>38 keV) in the central plasma sheet: Data analysis and modeling

2011 ◽  
Vol 116 (A9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Bingxian Luo ◽  
Weichao Tu ◽  
Xinlin Li ◽  
Jiancun Gong ◽  
Siqing Liu ◽  
...  
Keyword(s):  
Data Analysis ◽  
Plasma Sheet ◽  
Energetic Electrons ◽  
Central Plasma ◽  
Central Plasma Sheet

The quasi-adiabatic ion distribution in the central plasma sheet and its boundary layer

1991 ◽  
Vol 96 (A2) ◽  
pp. 1601-1609 ◽  
Author(s):  
Maha Ashour-Abdalla ◽  
Jorg Büchner ◽  
Lev M. Zelenyi
Keyword(s):  
Boundary Layer ◽  
Plasma Sheet ◽  
Ion Distribution ◽  
Central Plasma ◽  
Central Plasma Sheet

Nonadiabatic heating of the central plasma sheet at substorm onset

1992 ◽  
Vol 97 (A2) ◽  
pp. 1481 ◽  
Author(s):  
C. Y. Huang ◽  
L. A. Frank ◽  
G. Rostoker ◽  
J. Fennell ◽  
D. G. Mitchell
Keyword(s):  
Plasma Sheet ◽  
Substorm Onset ◽  
Central Plasma ◽  
Central Plasma Sheet

Mapping of the statistical auroral distribution into the magnetosphere

1994 ◽  
Vol 72 (5-6) ◽  
pp. 266-269 ◽  
Author(s):  
Y. I. Feldstein ◽  
R. D. Elphinstone ◽  
D. J. Hearn ◽  
J. S. Murphree ◽  
L. L. Cogger
Keyword(s):  
Plasma Sheet ◽  
Large Scale ◽  
Source Region ◽  
Central Plasma ◽  
Discrete Structures ◽  
Central Plasma Sheet ◽  
Auroral Emissions ◽  
Auroral Arcs ◽  
Inner Region ◽  
Entry Layer

Statistical auroral distributions are used in combination with an empirical model of the Earth's magnetic field in an attempt to determine the large-scale magnetospheric source regions for various types of auroral luminosity. The narrow ring of structured auroral emissions during magnetically quiet intervals appears to be associated with the inner region of the nightside central plasma sheet and the dayside entry layer. Under active conditions these discrete structures expand to fill the entire central plasma sheet. The high-altitude boundary plasma sheet on the other hand is more likely to be related to diffuse auroral emissions poleward of this "oval" and to high-latitude polar auroral arcs. Under this scenario, the region of the magnetosphere bounded by the inner edge of the tail current sheet, the plasmasphere, and the dayside entry layer is the source region for the most equatorward diffuse auroral precipitation.

Average plasma properties in the central plasma sheet

1989 ◽  
Vol 94 (A6) ◽  
pp. 6597-6606 ◽  
Author(s):  
W. Baumjohann ◽  
G. Paschmann ◽  
C. A. Cattell
Keyword(s):  
Plasma Sheet ◽  
Plasma Properties ◽  
Central Plasma ◽  
Central Plasma Sheet

Bursty bulk flows in the inner central plasma sheet

1992 ◽  
Vol 97 (A4) ◽  
pp. 4027 ◽  
Author(s):  
V. Angelopoulos ◽  
W. Baumjohann ◽  
C. F. Kennel ◽  
F. V. Coroniti ◽  
M. G. Kivelson ◽  
...  
Keyword(s):  
Plasma Sheet ◽  
Central Plasma ◽  
Central Plasma Sheet ◽  
Bursty Bulk Flows
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