Results 141 to 150 of about 260,255 (207)

Autogenous Electron Acceleration by Ion Flow Vortex in Space Plasmas

open access: yesThe Astrophysical Journal
Plasma flow vortexes are ubiquitous in space and astrophysical settings and play a vital role in energy and mass transport, contributing to formation of stars and planets, launching and dissipation of astrophysical jets, and coupling between planetary ...
C. M. Liu   +6 more
doaj   +1 more source

Stellar Ablation of Planetary Atmospheres

open access: yes, 2007
We review observations and theories of the solar ablation of planetary atmospheres, focusing on the terrestrial case where a large magnetosphere holds off the solar wind, so that there is little direct atmospheric impact, but also couples the solar wind ...
Moore, Thomas E.   +3 more
core  

Daytime Ionospheric F‐Region Topside Irregularities Associated With Significant Density Enhancement at Low Latitudes During the 12 November 2025 Magnetic Storm

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract In this study, daytime F‐region irregularities were observed at low latitudes during the main phase of the 12 November 2025 strong magnetic storm, causing intense very high frequency radar echoes ranging hundreds of kilometers in altitude.
Wenjie Sun   +10 more
wiley   +1 more source

A Massively Parallel Hybrid Dusty-Gasdynamics and Kinetic Direct Simulation Monte Carlo Model for Planetary Applications

open access: yes, 2004
In order to understand the global structure, dynamics, and physical and chemical processes occurring in the upper atmospheres, exospheres, and ionospheres of the Earth, the other planets, comets and planetary satellites and their interactions with their ...
Combi, Michael R.
core  

Ion Cyclotron Waves Associated With Ionospheric Outflow at Jupiter

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The mechanism driving ion outflow from Jupiter's auroras remains to be determined. H+ ${\mathrm{H}}^{+}$ outflow has been observed with highly field‐aligned pitch angles consistent with acceleration by high‐altitude electrostatic potential structures.
E. A. Skinner   +8 more
wiley   +1 more source

A Global View of Jupiter’s Upper Atmosphere Through H

open access: yesThe Astrophysical Journal Letters
Planetary upper atmospheres couple the deep atmosphere to the space environment. The dynamics and energetics of this rarefied, partially ionized region govern atmospheric evolution. At Jupiter, decades of past plasma measurements have revealed a variable
Kate Roberts   +10 more
doaj   +1 more source

The Role of Planetary Rotation in Polar Cusp Localization

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Juno observations have revealed that Jupiter's polar cusps are displaced toward dusk and even the nightside, contradicting the Earth‐derived paradigm that is confined to narrower ranges near noon. These findings underscore the overlooked influence of planetary rotation on magnetospheric dynamics, exposing a critical gap in current theoretical ...
Junjie Chen   +9 more
wiley   +1 more source

Electron Dispersion at the Electron Edge of the Earth's Magnetospheric Cusp

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission observes electron energy‐latitude dispersion at the equatorward edge of the magnetospheric cusp, and high‐cadence Analyzer for Cusp Electrons (ACE) measurements resolve the dispersed edge. The inverse velocity dispersion (low energy before high energy)
J. S. Halekas   +26 more
wiley   +1 more source

A New Saturn Model of Ionospheric Transport and Electrodynamics (SMITE)

open access: yesThe Planetary Science Journal
We introduce the Saturn Model of Ionospheric Transport and Electrodynamics (SMITE), a new model that incorporates interhemispheric plasma transport using a dipole magnetic field aligned grid, and a range of dynamic processes that influence Saturn’s ...
Omakshi Agiwal   +4 more
doaj   +1 more source

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