Results 1 to 10 of about 7,665,377 (334)

Simultaneous macroscale and microscale wave–ion interaction in near-earth space plasmas [PDF]

open access: yesNature Communications, 2022
Cross-scale energy transfers in collisionless plasmas help understanding involved mechanisms. Here, the authors show simultaneous macro- and micro-scale wave-ion interactions provide an efficient mechanism for cross-scale energy transfer and plasma ...
Z.-Y. Liu   +11 more
doaj   +3 more sources

Electrostatic Solitary Structures in Space Plasmas: Soliton Perspective

open access: yesPlasma, 2021
Occurrence of electrostatic solitary waves (ESWs) is ubiquitous in space plasmas, e.g., solar wind, Lunar wake and the planetary magnetospheres. Several theoretical models have been proposed to interpret the observed characteristics of the ESWs.
Gurbax Singh Lakhina   +3 more
doaj   +2 more sources

On the Calculation of the Effective Polytropic Index in Space Plasmas [PDF]

open access: yesEntropy (Basel), 2019
The polytropic index of space plasmas is typically determined from the relationship between the measured plasma density and temperature. In this study, we quantify the errors in the determination of the polytropic index, due to uncertainty in the ...
G. Nicolaou, G. Livadiotis, R. Wicks
semanticscholar   +2 more sources

The two-fluid dynamics and energetics of the asymmetric magnetic reconnection in laboratory and space plasmas [PDF]

open access: yesNat Commun, 2018
Magnetic reconnection is a fundamental process in magnetized plasma where magnetic energy is converted to plasma energy. Despite huge differences in the physical size of the reconnection layer, remarkably similar characteristics are observed in both ...
M. Yamada   +13 more
semanticscholar   +2 more sources

Collisionless Magnetic Reconnection in Space Plasmas [PDF]

open access: yesFrontiers in Physics, 2013
Magnetic reconnection, the merging of oppositely directed magnetic fields that leads to field reconfiguration, plasma heating, jetting and acceleration, is one of the most celebrated processes in collisionless plasmas.
Rudolf A. Treumann, Wolfgang eBaumjohann
doaj   +5 more sources

Electron Power-Law Spectra in Solar and Space Plasmas [PDF]

open access: yesSpace Science Reviews, 2018
Particles are accelerated to very high, non-thermal energies in solar and space plasma environments. While energy spectra of accelerated electrons often exhibit a power law, it remains unclear how electrons are accelerated to high energies and what ...
Battaglia, M.   +12 more
core   +4 more sources

Magnetic null points in kinetic simulations of space plasmas [PDF]

open access: yes, 2015
We present a systematic attempt to study magnetic null points and the associated magnetic energy conversion in kinetic Particle-in-Cell simulations of various plasma configurations.
Cazzola, Emanuele   +7 more
core   +4 more sources

Kappa Distributions: Statistical Physics and Thermodynamics of Space and Astrophysical Plasmas

open access: yesUniverse, 2018
Kappa distributions received impetus as they provide efficient modelling of the observed particle distributions in space and astrophysical plasmas throughout the heliosphere.
George Livadiotis
doaj   +2 more sources

Fast Inverse Transform Sampling of Non‐Gaussian Distribution Functions in Space Plasmas [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2022
Non‐Gaussian distributions are commonly observed in collisionless space plasmas. Generating samples from non‐Gaussian distributions is critical for the initialization of particle‐in‐cell simulations that investigate their driven and undriven dynamics. To
X. An   +5 more
semanticscholar   +1 more source

DRAFT: A Method for Wave Analyses in Space Plasmas

open access: yesAstrophysical Journal, 2022
In this study, we apply a method for wave analyses in space plasmas, to better understand the nature of plasma waves and turbulence. Such a method is based on four-spacecraft measurements of magnetic fields or electric fields; it calculates the phase ...
W. Zhang   +7 more
semanticscholar   +1 more source

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