Results 71 to 80 of about 196,114 (210)

Analytical Modeling of Hot Ion Interchange Injections in Saturn's Magnetosphere

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Cassini's CHarge Energy Mass Spectrometer (CHEMS) instrument collected energetic plasma data from 2004 to 2017, including hundreds of observations of small‐scale nearly dispersionless “local” injection events into the inner magnetosphere. This study assesses whether these interchange‐like injections are a channel‐like structure still connected
Michael W. Liemohn   +4 more
wiley   +1 more source

The Mini Induced Magnetospheres at Mars

open access: yes, 2023
We report on observations made by the Mars Atmosphere and Volatile EvolutioN spacecraft at Mars, in the region of the ion plume. We observe that in some cases, when the number density of oxygen ions is comparable to the density of the solar wind protons ...
DiBraccio, G.   +10 more
core   +1 more source

Proton Trapping in Ganymede’s Magnetosphere: A Quantitative Test Particle Study

open access: yesThe Astrophysical Journal
Ganymede, the largest moon in the solar system, possesses an intrinsic dipole magnetic field, creating a mini-magnetosphere within Jupiter’s giant magnetosphere.
Tao Yan   +7 more
doaj   +1 more source

Sources and Acceleration of Energetic Particles in Planetary Magnetospheres [PDF]

open access: yesInternational Astronomical Union Colloquium, 1994
AbstractEnergetic particles in the magnetospheres of the solar system originate from various different sources, such as the solar wind, the planetary ionospheres as well as the moons and rings of the planetary systems. Important acceleration sites are the auroral regions, the magnetotail, and the equatorial regions of the magnetospheres where electric ...
openaire   +1 more source

Statistical Scale Analyses of a Diurnal Periodicity in Auroral Kilometric Radiation, Observed by Wind/WAVES

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The Earth's strongest natural radio emission is Auroral Kilometric Radiation (AKR), which is correlated with auroral intensity, and is a barometer for space weather. AKR is generated by the electron cyclotron maser instability, with sources on auroral field lines. Previous work on AKR and radio emissions from other planets (or stars) points to
Alexandra Ruth Fogg   +9 more
wiley   +1 more source

Long extra-tropical planetary wave propagation in the presence of slowly varying mean flow and bottom topography. II: ray propagation and comparison with observations [PDF]

open access: yes, 2003
Ray theory is used to predict phase and group velocities for long planetary waves under realistic, albeit slowly varying, oceanic conditions. The results are compared with local theory using fields smoothed to the same amount (9° latitude/longitude) as ...
Killworth, Peter D.   +9 more
core   +1 more source

Energetic Proton Dynamics in Ganymede’s Magnetosphere under Different Upstream Conditions: The Role of Field-line Curvature Scattering

open access: yesThe Astrophysical Journal
Ganymede’s mini-magnetosphere is embedded in the variable Jovian plasma environment, yet how upstream conditions regulate energetic proton dynamics within the magnetosphere remains an open question.
Tao Yan   +6 more
doaj   +1 more source

A Magnetospheric Source for Near‐Planet Whistler‐Mode Waves at Venus

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The presence or absence of lightning in the atmosphere of Venus has important implications for atmospheric chemistry, potential chemical signatures of life, identifying volcanic activity, and quantifying potential hazards to future exploration missions.
David M. Malaspina   +4 more
wiley   +1 more source

Impacts of Tidal Locking on Magnetospheric Energy Input to Exoplanet Atmospheres

open access: yesThe Astrophysical Journal
We investigate the effect of planetary corotation on energy dissipation within the magnetosphere–ionosphere system of exoplanets. Using magnetohydrodynamic simulations, we find that tidally locked exoplanets have a higher cross polar cap potential (CPCP)
Fatemeh Bagheri   +2 more
doaj   +1 more source

Computer Simulation of Reconnection in Planetary Magnetospheres [PDF]

open access: yesSymposium - International Astronomical Union, 1985
The earth's magnetosphere provides an ideal opportunity to model reconnection in well known geometries that are close enough to the idealized analytic models to make a comparison of the computer models with analytic theory meaningful. In addition more detailed, even three-dimensional, models can be used for a comparison with extended data from in situ ...
openaire   +2 more sources

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