Results 21 to 30 of about 7,633,755 (347)

Electromagnetic Ion–Ion Instabilities in Space Plasmas: Effects of Suprathermal Populations [PDF]

open access: yesAstrophysical Journal, 2020
In collision-poor plasmas from space, three distinct ion–ion instabilities can be driven by the proton beams streaming along the background magnetic field: left-hand resonant, nonresonant, and right-hand resonant instabilities. These instabilities are in
S. M. Shaaban   +3 more
semanticscholar   +1 more source

Direct Observations of Reconnection Fronts in Earth's Turbulent Magnetosheath

open access: yesThe Astrophysical Journal, 2023
Reconnection fronts (RFs), ion-scale magnetic transients characterized by dramatic enhancement of reconnected magnetic fields, have been documented as crucial energy transfer regions during magnetic reconnection.
C. M. Liu, X. N. Xing, J. B. Cao
doaj   +1 more source

Successive Energy Conversion at a Stepwise Dipolarization Front

open access: yesThe Astrophysical Journal, 2023
Dipolarization fronts (DFs), ion-scale magnetic structures characterized by sharp enhancement of northward magnetic field developed within plasma jets, have been suggested to play a crucial role in the energy transfer chain in the terrestrial magnetotail.
C. M. Liu, X. N. Xing, J. B. Cao
doaj   +1 more source

In Situ Measurement of Curvature of Magnetic Field in Turbulent Space Plasmas: A Statistical Study [PDF]

open access: yesAstrophysical Journal, 2019
Using in situ data, accumulated in the turbulent magnetosheath by the Magnetospheric Multiscale Mission, we report a statistical study of magnetic field curvature and discuss its role in the turbulent space plasmas.
R. Bandyopadhyay   +12 more
semanticscholar   +1 more source

Phase-space tomography in magnetically confined plasmas [PDF]

open access: yes, 2023
0000-0001-5669-1937In this paper, a tomography approach aiming at reconstructing a phase-space structure is proposed. For the phase-space resolved diagnostic system, a signal must be decomposed in real-space, velocity-space, and time; therefore, it is ...
YOSHINUMA, Mikirou   +7 more
core   +1 more source

Turbulent heating in space plasmas: theory and observations

open access: yes, 2021
Matthaeus, William H.A turbulent system transfers energy from large scales to progressively smaller scales until it is ultimately dissipated as heat. At intermediate lengthscales, this energy transfer mostly occurs from larger scales to smaller scales ...
Bandyopadhyay, Riddhi
core   +1 more source

Quasi-parallel whistler mode waves observed by THEMIS during near-earth dipolarizations [PDF]

open access: yesAnnales Geophysicae, 2009
We report on quasi-parallel whistler emissions detected by the near-earth satellites of the THEMIS mission before, during, and after local dipolarization. These emissions are associated with an electron temperature anisotropy α=T⊥e/T||e>1
O. Le Contel   +22 more
doaj   +1 more source

Toward a realistic macroscopic parametrization of space plasmas with regularized κ-distributions

open access: yesAstronomy & Astrophysics, 2020
So-called κ-distributions are widely invoked in the analysis of nonequilibrium plasmas from space, although a general macroscopic parametrization as known for Maxwellian plasmas near thermal equilibrium is prevented by the diverging moments of order l ...
M. Lazar   +3 more
semanticscholar   +1 more source

Whistler instability stimulated by the suprathermal electrons present in space plasmas [PDF]

open access: yesAstrophysics and Space Science, 2019
In the absence of efficient collisions, deviations from thermal equilibrium of plasma particle distributions are controlled by the self-generated instabilities.
M. Lazar   +6 more
semanticscholar   +1 more source

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