Results 11 to 20 of about 11,707,706 (349)

Current sheets from Ulysses observation [PDF]

open access: yesAnnales Geophysicae, 2011
Current sheet is a significant source of solar wind MHD turbulence intermittency. It has long been recognized that these structures can arise from non-linear interactions of MHD turbulence.
B. Miao, B. Miao, B. Peng, G. Li, G. Li
doaj   +3 more sources

Relation between current sheets and vortex sheets in stationary incompressible MHD [PDF]

open access: yesAnnales Geophysicae, 2012
Magnetohydrodynamic configurations with strong localized current concentrations and vortices play an important role in the dissipation of energy in space and astrophysical plasma. Within this work we investigate the relation between current sheets and
D. H. Nickeler   +2 more
doaj   +2 more sources

Quasi‐adiabaticity in bifurcated current sheets [PDF]

open access: yesGeophysical Research Letters, 2006
We examine the non‐linear dynamics of charged particles in “bifurcated” (double‐humped) current sheets. We show that, when the adiabaticity parameter κ is of the order unity, particles experience a negligible change of magnetic moment. Such a behavior contrasts with the prominent magnetic moment scattering that is achieved in single‐humped current ...
Delcourt, Dominique, C.   +2 more
openaire   +4 more sources

Additional acceleration of solar-wind particles in current sheets of the heliosphere [PDF]

open access: yes, 2015
. Particles of fast solar wind in the vicinity of the heliospheric current sheet (HCS) or in a front of interplanetary coronal mass ejections (ICMEs) often reveal very peculiar energy or velocity profiles, density distributions with double or triple ...
V. Zharkova, O. Khabarova
semanticscholar   +2 more sources

Development of bifurcated current sheets in solar wind reconnection exhausts [PDF]

open access: yes, 2015
Petschek‐type reconnection is expected to result in bifurcations of reconnection current sheets. In contrast, Hall reconnection simulations show smooth changes in the reconnecting magnetic field.
R. Mistry   +3 more
semanticscholar   +2 more sources

Optimal Energy Growth in Current Sheets [PDF]

open access: yesSolar Physics, 2017
In this paper, we investigate the possibility of transient growth in the linear perturbation of current sheets. The resistive magnetohydrodynamic (MHD) operator for a background field consisting of a current sheet is non-normal, meaning that associated eigenvalues and eigenmodes can be very sensitive to perturbation. In a linear stability analysis of a
MacTaggart, David, Stewart, Peter
openaire   +3 more sources

Small-scale Current Sheets and Associated Switchback Activity in the Inner Heliosphere

open access: yesThe Astrophysical Journal Letters
Several long-standing theories postulate that turbulent dissipation can heat solar wind protons in situ. Turbulent dissipation can occur via current sheets, which are small-scale structures embedded in the solar wind magnetic field.
Sydney Furman   +6 more
doaj   +2 more sources

Electron Acceleration in Thinning Nonreconnecting Current Sheets in a Quasi-parallel Shock

open access: yesThe Astrophysical Journal
We study electron energization in turbulence-generated current sheets in the shock transition region by means of fully kinetic collisionless plasma simulations and theory.
N. Bessho   +5 more
doaj   +2 more sources

Current sheets in comet 67P/Churyumov‐Gerasimenko's coma [PDF]

open access: yes, 2017
The Rosetta Plasma Consortium (RPC) data are used to investigate the presence of current sheets in the coma of comet 67P/Churyumov-Gerasimenko. The interaction of the interplanetary magnetic field (IMF) transported by the solar wind toward the outgassing
M. Volwerk   +18 more
semanticscholar   +2 more sources

The Compression of the Heliospheric Magnetic Structure by Interplanetary Shocks: Is the Structure at 1AU a Manifestation of Solar-Wind Turbulence or Is It Fossil Structure From the Sun?

open access: yesFrontiers in Astronomy and Space Sciences, 2020
As a test of the action of MHD turbulence in the solar wind, the compression of the heliospheric magnetic structure at 1AU by 109 interplanetary shocks is examined.
Joseph E. Borovsky
doaj   +1 more source

Home - About - Disclaimer - Privacy