scholarly journals Contribution of nonadiabatic ions to the cross-tail current in an O+dominated thin current sheet

2005 ◽  
Vol 110 (A6) ◽  
Author(s):  
L. M. Kistler
Keyword(s):  
Current Sheet ◽  
Tail Current ◽  
Thin Current Sheet ◽  
The Cross

scholarly journals MMS Observation on the Cross‐Tail Current Sheet Roll‐up at the Dipolarization Front

2021 ◽  
Vol 126 (4) ◽  
Author(s):  
L. Q. Zhang ◽  
C. Wang ◽  
L. Dai ◽  
H. S. Fu ◽  
A. T. Y. Lui ◽  
...  
Keyword(s):  
Current Sheet ◽  
Tail Current ◽  
Dipolarization Front ◽  
The Cross

scholarly journals Asymmetry in the Earth’s magnetotail neutral sheet rotation due to IMF $$B_y$$ sign?

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Timo Pitkänen ◽  
Anita Kullen ◽  
Lei Cai ◽  
Jong-Sun Park ◽  
Heikki Vanhamäki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Interplanetary Magnetic Field ◽  
Current Sheet ◽  
The Sun ◽  
Neutral Sheet ◽  
Tail Current ◽  
Cluster Data ◽  
The Asymmetry ◽  
The Cross ◽  
Possible Cause

AbstractEvidence suggests that a non-zero dawn–dusk interplanetary magnetic field (IMF $$B_y$$ B y ) can cause a rotation of the cross-tail current sheet/neutral sheet around its axis aligned with the Sun–Earth line in Earth’s magnetotail. We use Geotail, THEMIS and Cluster data to statistically investigate how the rotation of the neutral sheet depends on the sign and magnitude of IMF $$B_y$$ B y . In our dataset, we find that in the tail range of $$-30<$$ - 30 < XGSM $$<-15$$ < - 15 $$R_{\mathrm{E}}$$ R E , the degree of the neutral sheet rotation is clearly smaller, there appears no significant rotation or even, the rotation is clearly to an unexpected direction for negative IMF $$B_y$$ B y , compared to positive IMF $$B_y$$ B y . Comparison to a model by Tsyganenko et al. (2015, doi:10.5194/angeo-33-1-2015) suggests that this asymmetry in the neutral sheet rotation between positive and negative IMF $$B_y$$ B y conditions is too large to be explained only by the currently known factors. The possible cause of the asymmetry remains unclear.

Global and local processes of thin current sheet formation during substorm growth phase

2021 ◽  
pp. 105671
Author(s):  
A. Runov ◽  
V. Angelopoulos ◽  
A.V. Artemyev ◽  
J.M. Weygand ◽  
S. Lu ◽  
...  
Keyword(s):  
Current Sheet ◽  
Growth Phase ◽  
Thin Current Sheet ◽  
Global And Local

Cluster Observation of Electrostatic Solitary Waves around Magnetic Null Point in Thin Current Sheet

2010 ◽  
Vol 27 (1) ◽  
pp. 019401 ◽  
Author(s):  
Li Shi-You ◽  
Deng Xiao-Hua ◽  
Zhou Meng ◽  
Yuan Zhi-Gang ◽  
Wang Jing-Fang ◽  
...  
Keyword(s):  
Current Sheet ◽  
Solitary Waves ◽  
Null Point ◽  
Thin Current Sheet ◽  
Magnetic Null ◽  
Magnetic Null Point

The near-Earth cross-tail current sheet: Detailed ISEE 1 and 2 case studies

1986 ◽  
Vol 91 (A4) ◽  
pp. 4287 ◽  
Author(s):  
D. J. McComas ◽  
C. T. Russell ◽  
R. C. Elphic ◽  
S. J. Bame
Keyword(s):  
Current Sheet ◽  
Case Studies ◽  
Tail Current

Statistics on Jupiter's Current Sheet with Juno Data: Geometry, Magnetic Fields and Energetic Particles

2021 ◽  
Author(s):  
Zhi-Yang Liu ◽  
Qiu-Gang Zong ◽  
Michel Blanc
Keyword(s):  
Magnetic Fields ◽  
Current Sheet ◽  
Power Law ◽  
Heavy Ions ◽  
Particle Interaction ◽  
The Other ◽  
Gaussian Functions ◽  
Fixed Energy ◽  
Thin Current Sheet ◽  
A Current

&lt;p&gt;Jupiter's magnetosphere contains a current sheet of huge size near its equator. The current sheet not only mediates the global mass and energy cycles of Jupiter's magnetosphere, but also provides an occurring place for many localized dynamic processes, such as reconnection and wave-particle interaction. To correctly evaluate its role in these processes, a statistical description of the current sheet is required. To this end, here we conduct statistics on Jupiter's current sheet, with four-year Juno data recorded in the 20-100 Jupiter radii, post-midnight magnetosphere. The results suggest a thin current sheet whose thickness is comparable with the gyro-radius of dominant ions. Magnetic fields in the current sheet decrease in power-law with increasing radial distances. At fixed energy, the flux of electrons and protons increases with decreasing radial distances. On the other hand, at fixed radial distances, the flux decreases in power-law with increasing energy. The flux also varies with the distances to the current sheet center. The corresponding relationship can be well described by Gaussian functions peaking at the current sheet center. In addition, the statistics show the flux of oxygen- and sulfur-group ions is comparable with the flux of protons at the same energy and radial distances, indicating the non-negligible effects of heavy ions on current sheet dynamics. From these results, a statistical model of Jupiter's current sheet is constructed, which provides us with a start point of understanding the dynamics of the whole Jupiter's magnetosphere.&lt;/p&gt;

Sign in / Sign up

Export Citation Format

Share Document