Results 21 to 30 of about 94,084 (338)

Overcoming sheaths overlapping in a small diameter metallic tube with one end closed and using a high density plasma from a high power pulsed hollow cathode discharge

open access: yesAIP Advances, 2018
High voltage sheaths are formed when plasmas are produced by application of high negative voltage pulses to conductive supports or components, as in Plasma Immersion Ion Implantation (PIII) treatments of materials surfaces.
M. Ueda   +4 more
doaj   +1 more source

The SpacePy space science package at 12 years

open access: yesFrontiers in Astronomy and Space Sciences, 2022
For over a decade, the SpacePy project has contributed open-source solutions for the production and analysis of heliophysics data and simulation results.
Jonathan T. Niehof   +4 more
doaj   +1 more source

Thermal instability in ionized plasma [PDF]

open access: yes, 2009
We study magnetothermal instability in the ionized plasmas including the effects of Ohmic, ambipolar and Hall diffusion. Magnetic field in the single fluid approximation does not allow transverse thermal condensations, however, non-ideal effects highly ...
A. Burkert   +27 more
core   +1 more source

Spacecraft Charging Simulations of Probe B1 of Comet Interceptor during the Cometary Flyby

open access: yesThe Astrophysical Journal, 2023
Comet Interceptor will be the first mission to make a flyby of a long-period or interstellar comet. After launch, the spacecraft will wait at the Sun–Earth Lagrange point L2 for a yet-to-be-discovered comet to appear.
S. Bergman   +4 more
doaj   +1 more source

Active experiments in space plasmas [PDF]

open access: yesEos, Transactions American Geophysical Union, 1980
Rather than observing purely natural phenomena, space physicists have in recent years planned and conducted ‘controlled’ experiments in the ionospheric and magnetospheric plasmas. In such experiments, the medium in the vicinity of the space vehicle is deliberately perturbed by the injection of a signal that has known characteristics; the signal may be ...
openaire   +3 more sources

Variation of Floating Potential in the Topside Ionosphere Observed by STSAT-1 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2014
In this study, we investigated the effect of space plasmas on the floating potential variation of a low-altitude, polar-orbiting satellite using the Langmuir Probe (LP) measurement onboard the STSAT-1 spacecraft.
Junhyun Lee   +13 more
doaj   +1 more source

A Study on Second Harmonic Excitation in Electron Beam–Plasma Instability

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The electron beam–plasma interaction is a fundamental nonlinear plasma process that is frequently taking place in space and laboratory plasmas. Such an interaction is found to generate electromagnetic waves observed in space plasmas.
Maryamsadat Rafiei   +3 more
doaj   +1 more source

Polar cap arcs from the magnetosphere to the ionosphere: kinetic modelling and observations by Cluster and TIMED [PDF]

open access: yesAnnales Geophysicae, 2012
On 1 April 2004 the GUVI imager onboard the TIMED spacecraft spots an isolated and elongated polar cap arc. About 20 min later, the Cluster satellites detect an isolated upflowing ion beam above the polar cap.
R. Maggiolo   +7 more
doaj   +1 more source

Nonlinear aspects of quantum plasma physics [PDF]

open access: yes, 2009
Dense quantum plasmas are ubiquitous in planetary interiors and in compact astrophysical objects, in semiconductors and micro-mechanical systems, as well as in the next generation intense laser-solid density plasma interaction experiments and in quantum ...
Eliasson, Bengt, Shukla, Padma K.
core   +1 more source

Polar cap ion beams during periods of northward IMF: Cluster statistical results [PDF]

open access: yesAnnales Geophysicae, 2011
Above the polar caps and during prolonged periods of northward IMF, the Cluster satellites detect upward accelerated ion beams with energies up to a few keV.
R. Maggiolo   +6 more
doaj   +1 more source

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