scholarly journals A generation mechanism of electrostatic waves and subsequent electron heating in the plasma sheet–lobe boundary region during magnetic reconnection

Author(s):  
K. Fujimoto ◽  
S. Machida
2013 ◽  
Vol 52 (1) ◽  
pp. 205-210 ◽  
Author(s):  
X.H. Wei ◽  
J.B. Cao ◽  
G.C. Zhou ◽  
H.S. Fu ◽  
O. Santolík ◽  
...  

2009 ◽  
Vol 708 (2) ◽  
pp. 1545-1550 ◽  
Author(s):  
Jian Ding ◽  
Feng Yuan ◽  
Edison Liang

2019 ◽  
Author(s):  
Yanyan Yang ◽  
Chao Shen ◽  
Yong Ji

Abstract. It is generally believed that field aligned currents (FACs) and the ring current (RC) are two dominant parts of the inner magnetosphere. However, using the Cluster spacecraft crossing of the pre-midnight inner plasma sheet in the latitude region between 10° N and 30° N, it is found that, during large storm events, in addition to FACs and the RC, there also exist strong southward and northward currents, which cannot be FACs, because the magnetic field in these regions is mainly along the XY plane. Detailed investigation shows that both magnetic field lines (MFLs) and currents in these regions highly fluctuate. When the curvature of MFLs changes direction in the XY plane, the current also alternatively switches between southward and northward. Further analysis of the current generation mechanism indicates that the most reasonable candidate for the origin of these southward and northward currents is the curvature drift of energetic particles.


1995 ◽  
Vol 64 (6) ◽  
pp. 2018-2035 ◽  
Author(s):  
Reiji Sugaya ◽  
Hideyuki Tachibana ◽  
Hirobumi Yamashita ◽  
Kouji Miyake ◽  
Akihiro Ue ◽  
...  

2011 ◽  
Vol 107 (18) ◽  
Author(s):  
Y. Ono ◽  
H. Tanabe ◽  
Y. Hayashi ◽  
T. Ii ◽  
Y. Narushima ◽  
...  

2001 ◽  
Vol 53 (6) ◽  
pp. 627-634 ◽  
Author(s):  
M. Hoshino ◽  
K. Hiraide ◽  
T. Mukai

2014 ◽  
Vol 1 (2) ◽  
pp. 1657-1671
Author(s):  
J. Guo ◽  
B. Yu

Abstract. We studied the evolutions of double layers which appear after the magnetic reconnection through two-dimensional electromagnetic particle-in-cell simulation. The simulation results show that the double layers are formed in the plasma sheet boundary layer after magnetic reconnection. At first, the double layers which have unipolar structures are formed. And then the double layers turn into bipolar structures, which will couple with another new weak bipolar structure. Thus a new double layer or tripolar structure comes into being. The double layers found in our work are about several ten Debye lengths, which accords with the observation results. It is suggested that the electron beam formed during the magnetic reconnection is responsible for the production of the double layers.


2001 ◽  
Vol 19 (10/12) ◽  
pp. 1669-1681 ◽  
Author(s):  
J. M. Quinn ◽  
G. Paschmann ◽  
R. B. Torbert ◽  
H. Vaith ◽  
C. E. McIlwain ◽  
...  

Abstract. We examine two crossings of three Cluster satellites from the polar cap into the high-latitude plasma sheet at midnight local time, using data from the Electron Drift Instrument (EDI). EDI measures the full electron drift velocity in the plane perpendicular to the magnetic field for any field and drift directions. The context of the measured convection velocities is established by their relation to the intense enhancements in 1 keV electrons, also measured by EDI, as the satellites move from the polar cap into the plasma sheet boundary. In both cases presented here, the cross B convection in the polar cap is anti-sunward (toward the nightside plasma sheet) with a small duskward component. As the satellites enter the plasma sheet boundary region, the dawn-dusk convective flow component reverses its sign, and the flow in the meridianal plane (toward the center of the plasma sheet) drops substantially. The relatively stable convection in the polar cap becomes highly variable as the PSBL is encountered. The timing and sequence of the boundary crossings by the Cluster satellites are consistent with a relatively static structure on a time scale of the few minutes in satellite separations. In one of the two events, the plasma sheet boundary has a spatially separate structure that is crossed by the satellites before entering the plasma sheet.Key words. Magnetospheric physics (electric fields; magnetopause, cusp and boundary layers; instruments and techniques)


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