Results 11 to 20 of about 7,633,755 (347)

Nongyrotropic particle distributions in space plasmas [PDF]

open access: yesAnnales Geophysicae, 1999
In nonstationary, strong inhomogeneous or open plasmas particle orbits are rather complicated. If the nonstationary time scale is smaller than the gyration period, if the inhomogeneity scale is smaller than the gyration radius, i.e. at magnetic plasma
U. Motschmann   +4 more
doaj   +2 more sources

Particle energization in space plasmas: towards a multi-point, multi-scale plasma observatory [PDF]

open access: yesExperimental astronomy (Print), 2019
This White Paper outlines the importance of addressing the fundamental science theme “How are charged particles energized in space plasmas” through a future ESA mission.
A. Retinò   +29 more
semanticscholar   +2 more sources

Wave Model Development in Multi-Ion Plasmas [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1999
Near-earth space is composed of plasmas which embed a number of plasma waves. Space plasmas consist of electrons and multi-ion that determine local wave propagation characteristics.
Sung-Hee Song   +2 more
doaj   +1 more source

Velocity-space cascade in magnetized plasmas: Numerical simulations [PDF]

open access: yesPhysics of Plasmas, 2018
Plasma turbulence is studied via direct numerical simulations in a two-dimensional spatial geometry. Using a hybrid Vlasov-Maxwell model, we investigate the possibility of a velocity-space cascade.
O. Pezzi   +8 more
semanticscholar   +3 more sources

VUV to IR Emission Spectroscopy and Interferometry Diagnostics for the European Shock Tube for High-Enthalpy Research

open access: yesSensors, 2023
The European Shock Tube for High-Enthalpy Research is a new state-of-the-art facility, tailored for the reproduction of spacecraft planetary entries in support of future European exploration missions, developed by an international consortium led by ...
Ricardo Grosso Ferreira   +6 more
doaj   +1 more source

On the violation of the zeroth law of turbulence in space plasmas [PDF]

open access: yesJournal of Plasma Physics, 2020
The zeroth law of turbulence states that, for fixed energy input into large-scale motions, the statistical steady state of a turbulent system is independent of microphysical dissipation properties. This behaviour, which is fundamental to nearly all fluid-
R. Meyrand   +3 more
semanticscholar   +1 more source

The cosmic ray-driven streaming instability in astrophysical and space plasmas

open access: yesPhysics of Plasmas, 2021
Energetic non-thermal particles, or cosmic rays, are a major component of astrophysical plasmas next to magnetic fields, radiation, and thermal gas.
A. Marcowith   +2 more
semanticscholar   +1 more source

Electromagnetic ion cyclotron instability stimulated by the suprathermal ions in space plasmas: A quasi-linear approach [PDF]

open access: yesPhysics of Plasmas, 2020
In collision-poor space plasmas, protons with an excess of kinetic energy or temperature in the direction perpendicular to the background magnetic field can excite the electromagnetic ion cyclotron (EMIC) instability.
S. M. Shaaban, M. Lazar, R. Schlickeiser
semanticscholar   +1 more source

On the Existence of Subsonic Solitary Waves Associated with Reconnection Jets in Earth’s Magnetotail

open access: yesThe Astrophysical Journal, 2023
The Magnetospheric Multiscale Spacecraft (MMS) has detected the signature of electrostatic solitary waves (ESWs) occurring in the reconnection jet site of the Earth’s magnetotail (Liu et al.). These observations have motivated us to explore the mechanism
Kuldeep Singh   +3 more
doaj   +1 more source

Relationship between Polytropic Index and Temperature Anisotropy in Space Plasmas [PDF]

open access: yes, 2020
The paper develops a theoretical relationship between the polytropic index and the temperature anisotropy that may characterize space plasmas. The derivation is based on the correlation among the kinetic energies of particles with velocities described by
G. Livadiotis, G. Nicolaou
semanticscholar   +1 more source

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