Results 191 to 200 of about 5,027 (230)

Planetary Ionospheres and Magnetospheres

2008
We begin this chapter with a detailed review of the ionization and recombination processes in a planetary ionosphere, as exemplified by the ionosphere we know the most about, that of the Earth. We then extend the discussion to the ionospheres of Mars and Venus, and examine atmospheric loss mechanisms.
Eugene F. Milone, William J. F. Wilson
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The dynamics of planetary magnetospheres

Planetary and Space Science, 2001
Abstract Mercury, Earth, Jupiter, Saturn, Uranus, Neptune, and the moon, Ganymede, have presently-active internal dynamos while Venus, Mars, at least two of the Galilean moons, the Earth's moon, comets and asteroids do not. These active dynamos produce magnetic fields that have sufficient strength to stand off the pressure of the exterior plasma ...
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Reconnection in planetary magnetospheres

Advances in Space Research, 2000
Current sheets in planetary magnetospheres that lie between regions of "oppositely-directed" magnetic field are either magnetopause-like, separating plasmas with different properties, or tail-like, separating plasmas of rather similar properties. The magnetopause current sheets generally have a nearly limitless supply of magnetized plasma that can ...
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Interstellar Conditions and Planetary Magnetospheres

2006
Eugene N Parker
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Dust in planetary magnetospheres

Advances in Space Research, 1993
Abstract Dust particles immersed in the magnetized plasma environment of planetary magnetospheres collect electrostatic charges. The expected charges are modest and only micron and smaller grains will be significantly perturbed by the resulting electrodynamic forces. These electrodynamic perturbations compete with other processes - radiation pressure,
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Particle acceleration in planetary magnetospheres

Nature, 1974
MEASUREMENTS of energetic particle fluxes in space1,2 have stimulated interest in the problem of particle acceleration inside planetary magnetospheres. Suggestions that terrestrial auroral (keV) electron precipitation is associated with transient space charge effects3, have been discarded, largely because the parallel (plasma) electrical conductivity ...
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Dust waves in rotating planetary magnetospheres

AIP Conference Proceedings, 2005
Low frequency electrostatic drift and acoustic waves are studied in rotating dusty plasmas. Linear dispersion relation is found. It is pointed out that rotation of the planet can introduce dust drift waves through Coriolis force in the planetary magnetospheres. This mode can couple with dust acoustic mode. Coriolis force effect may give rise to dipolar
Q Haque, H Saleem
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ULF waves in planetary magnetospheres

2006
Ultra-low frequency (ULF) waves are messengers in space plasmas. They communicate information about unstable, free-energy-containing plasma configurations, transient phenomena, or obstacles in flowing plasmas; they transport energy between different parts of magnetospheric systems; and they serve as momentum coupling agents between remote regions such ...
Karl-Heinz Glassmeier, Jared Espley
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Planetary magnetospheres: 1991?1993

Surveys in Geophysics, 1995
This paper briefly summarizes published work in the field of planetary magnetospheres from 1991 to mid-1993. The 1992 Ulysses fly-by and the proximity of Jupiter for remote sensing have meant that the Jovian magnetosphere has dominated interest in the field, resulting in studies of the interaction of magnetospheric plasma with dust grains as well as ...
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Source‐surface modeling of planetary magnetospheres

Journal of Geophysical Research: Space Physics, 1996
In the source‐surface approach to field modeling, the magnetosphere is divided conceptually into inner and outer regions (called S and T) by prescribing a cross‐magnetospheric surface that marks the tail entrance. The source surface thus consists of the prescribed magnetopause and the prescribed tail‐entrance surface.
Michael Schulz, Michael C. McNab
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