Results 11 to 20 of about 162,130 (269)

Kinetic Equilibrium of Two-dimensional Force-free Current Sheets

open access: yesThe Astrophysical Journal, 2023
Force-free current sheets are local plasma structures with field-aligned electric currents and approximately uniform plasma pressures. Such structures, widely found throughout the heliosphere, are sites for plasma instabilities and magnetic reconnection,
Xin An   +4 more
doaj   +1 more source

Electric current and magnetic field geometry in flapping magnetotail current sheets [PDF]

open access: yesAnnales Geophysicae, 2005
Using four-point magnetic field measurements by the Cluster spacecraft, we statistically analyze the magnetic field and electric current configurations during rapid crossings of the current sheet observed in July-October 2001 at geocentric distances ...
A. Runov   +14 more
doaj   +1 more source

FORCE BALANCE IN CURRENT SHEETS IN COLLISIONLESS PLASMA

open access: yesSolar-Terrestrial Physics, 2021
In this paper, we derive a divergent form of the force balance equation for collisionless plasma in the quasineutrality approximation, in which the electric field and current density are excluded.
O.V. Mingalev   +5 more
doaj   +1 more source

Energy Conversion at Kinetic Scales in the Turbulent Magnetosheath

open access: yesFrontiers in Astronomy and Space Sciences, 2019
The process of conversion or dissipation of energy in nearly collisionless turbulent space plasma, is yet to be fully understood. The existing models offer different energy dissipation mechanisms which are based on wave particle interactions or non ...
Zoltán Vörös   +5 more
doaj   +1 more source

Configuration of the Earth’s Magnetotail Current Sheet

open access: yesGeophysical Research Letters, 2021
The spatial scale and intensity of Earth’s magnetotail current sheet determine the magnetotail configuration, which is critical to one of the most energetically powerful phenomena in the Earth’s magnetosphere, substorms.
Anton Artemyev   +9 more
doaj   +1 more source

Magnetic guide field generation in collisionless current sheets [PDF]

open access: yesAnnales Geophysicae, 2010
In thin (Δ< few λi) collisionless current sheets in a space plasma like the magnetospheric tail or magnetopause current layer, magnetic fields can grow from thermal fluctuation level by the action of the non-magnetic Weibel instability ...
W. Baumjohann   +3 more
doaj   +1 more source

Universal Scaling of Thin Current Sheets

open access: yesGeophysical Research Letters, 2020
Thin current sheets (TCSs) with thicknesses about ion Larmor radii are widespread in space. It is important to describe their equilibrium structure allowing them to store and then explosively release the accumulated free energy.
L. M. Zelenyi   +4 more
doaj   +1 more source

Plasmoid-mediated reconnection during nonlinear peeling–ballooning edge-localized modes

open access: yesNuclear Fusion, 2023
Plasmoid-mediated reconnection is investigated for nonlinear peeling–ballooning edge-localized modes (P-B ELMs). The formation of current sheets and the transition to 3D current sheet instability is demonstrated through fully nonlinear resistive MHD ...
Fatima Ebrahimi, Amitava Bhattacharjee
doaj   +1 more source

Thin current sheets with strong bell-shape guide field: Cluster observations and models with beams [PDF]

open access: yesAnnales Geophysicae, 2014
We study the kinetic structure of intense ion-scale current sheets with strong electron currents and the guide field having a bell-shape profile. We consider four crossings of the Earth magnetotail current sheet by the Cluster mission in 2003.
I. Y. Vasko   +3 more
doaj   +1 more source

Magnetic configurations of the tilted current sheets in magnetotail [PDF]

open access: yesAnnales Geophysicae, 2008
In this research, the geometrical structures of tilted current sheet and tail flapping waves have been analysed based on multiple spacecraft measurements and some features of the tilted current sheets have been made clear for the first time.
C. Shen   +9 more
doaj   +1 more source

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