Results 41 to 50 of about 11,707,706 (349)

HEATING MECHANISMS IN THE LOW SOLAR ATMOSPHERE THROUGH MAGNETIC RECONNECTION IN CURRENT SHEETS [PDF]

open access: yes, 2016
We simulate several magnetic reconnection processes in the low solar chromosphere/photosphere; the radiation cooling, heat conduction and ambipolar diffusion are all included. Our numerical results indicate that both the high temperature (≳8 × 104 K) and
Lei Ni   +3 more
semanticscholar   +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

RADIATING CURRENT SHEETS IN THE SOLAR CHROMOSPHERE [PDF]

open access: yesThe Astrophysical Journal, 2012
An MHD model of a Hydrogen plasma with flow, an energy equation, NLTE ionization and radiative cooling, and an Ohm's law with anisotropic electrical conduction and thermoelectric effects is used to self-consistently generate atmospheric layers over a $50$ km height range.
Goodman, Michael L., Judge, Philip G.
openaire   +2 more sources

Sausage mode instability of thin current sheets as a cause of magnetospheric substorms [PDF]

open access: yesAnnales Geophysicae, 1999
Observations have shown that, prior to substorm explosions, thin current sheets are formed in the plasma sheet of the Earth's magnetotail. This provokes the question, to what extent current-sheet thinning and substorm onsets are physically, maybe even
J. Büchner, J. Büchner, J.-P. Kuska
doaj   +1 more source

Solar Wind Current Sheets Inside and Outside of Switchback Regions

open access: yes, 2023
Several long-standing theories postulate that turbulent dissipation can heat solar wind protons in situ. Turbulent dissipation may occur via current sheets, which are small-scale structures embedded in the solar wind magnetic field.
Furman, Sydney
core   +1 more source

Linking Turbulent Interplanetary Magnetic Field Fluctuations and Current Sheets

open access: yesUniverse
The study aims to understand the role of solar wind current sheets (CSs) in shaping the spectrum of turbulent fluctuations and driving dissipation processes in space plasma.
Maria O. Riazantseva   +5 more
doaj   +1 more source

The heliospheric current sheet [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2001
The heliospheric current sheet (HCS) is the boundary between open oppositely directed magnetic field lines which commonly originate as the outward extension of the solar magnetic dipole. The dipole tilt, the rotation of the Sun, and the outward propagation of the solar wind cause peaks and valleys in the current sheet which spiral outward.
openaire   +1 more source

The frequency spectrum of the solar-wind magnetic-field fluctuations that reside outside the strong current sheets: fast and slow solar wind

open access: yesFrontiers in Astronomy and Space Sciences
Motivated by knowledge that directional discontinuities (strong current sheets) in the solar-wind magnetic time series have dominating effects on the magnetic power spectral density of the solar wind, the question is raised as to what are the effects of ...
Joseph E. Borovsky, Charles W. Smith
doaj   +1 more source

Thin embedded current sheets: Cluster observations of ion kinetic structure and analytical models [PDF]

open access: yesAnnales Geophysicae, 2009
Kinetic structure of embedded thin horizontal current sheets is investigated. Current density estimated by curlometer technique is in general agreement with a sum of electron and proton currents.
A. V. Artemyev   +8 more
doaj   +1 more source

The thickness of current sheets and implications for coronal heating

open access: yesFrontiers in Physics, 2023
The thickness of current sheets is extremely important, especially as it relates to the onset of fast magnetic reconnection. Onset determines how much magnetic free energy can build up in a field before it is explosively released.
James A. Klimchuk   +5 more
doaj   +1 more source

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