Low-frequency mobility response functions for the central plasma sheet with application to tearing modes

1993 ◽  
Vol 98 (A4) ◽  
pp. 5893-5906 ◽  
Author(s):  
J. Hernandez ◽  
W. Horton ◽  
T. Tajima
Keyword(s):  
Plasma Sheet ◽  
Low Frequency ◽  
Response Functions ◽  
Tearing Modes ◽  
Central Plasma ◽  
Central Plasma Sheet

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

scholarly journals Dispersive O<sup>+</sup> conics observed in the plasma-sheet boundary layer with CRRES/LOMICS during a magnetic storm

1996 ◽  
Vol 14 (6) ◽  
pp. 593-607
Author(s):  
M. Wüest ◽  
D. T. Young ◽  
M. F. Thomsen ◽  
B. L. Barraclough ◽  
H. J. Singer ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Plasma Sheet ◽  
Pitch Angle ◽  
Radiation Effects ◽  
Low Frequency ◽  
Particle Interactions ◽  
Plasma Sheet Boundary Layer ◽  
Angle Scattering ◽  
Central Plasma ◽  
Spacecraft Spin

Abstract. We present initial results from the Low-energy magnetospheric ion composition sensor (LOMICS) on the Combined release and radiation effects satellite (CRRES) together with electron, magnetic field, and electric field wave data. LOMICS measures all important magnetospheric ion species (H+, He++, He+, O++, O+) simultaneously in the energy range 60 eV to 45 keV, as well as their pitch-angle distributions, within the time resolution afforded by the spacecraft spin period of 30 s. During the geomagnetic storm of 9 July 1991, over a period of 42 min (0734 UT to 0816 UT) the LOMICS ion mass spectrometer observed an apparent O+ conic flowing away from the southern hemisphere with a bulk velocity that decreased exponentially with time from 300 km/s to 50 km/s, while its temperature also decreased exponentially from 700 to 5 eV. At the onset of the O+ conic, intense low-frequency electromagnetic wave activity and strong pitch-angle scattering were also observed. At the time of the observations the CRRES spacecraft was inbound at L~7.5 near dusk, magnetic local time (MLT), and at a magnetic latitude of –23°. Our analysis using several CRRES instruments suggests that the spacecraft was skimming along the plasma sheet boundary layer (PSBL) when the upward-flowing ion conic arrived. The conic appears to have evolved in time, both slowing and cooling, due to wave-particle interactions. We are unable to conclude whether the conic was causally associated with spatial structures of the PSBL or the 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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