Results 31 to 40 of about 1,286 (173)

Ion Dynamics at the Magnetopause of Ganymede [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2022
AbstractWe study the dynamics of the thermal O+ and H+ ions at Ganymede's magnetopause when Ganymede is inside and outside of the Jovian plasma sheet using a three‐dimensional hybrid model of plasma (kinetic ions, fluid electrons). We present the global structure of the electric fields and power density (E ⋅ J) in the magnetosphere of Ganymede and show
Fatemi, Shahab   +4 more
openaire   +4 more sources

Statistical analysis of magnetopause crossings at lunar distances [PDF]

open access: yesAnnales Geophysicae, 2019
Different magnetopause models with a diverse level of complexity are in use. One thing that they have in common is that they are mainly based on near-earth observations; i.e.
J. Z. D. Mieth   +2 more
doaj   +1 more source

Electrodynamic context of magnetopause dynamics observed by magnetospheric multiscale

open access: yesGeophysical Research Letters, 2016
Magnetopause observations by Magnetospheric Multiscale (MMS) and Birkeland currents observed by the Active Magnetosphere and Planetary Electrodynamics Response Experiment are used to relate magnetopause encounters to ionospheric electrodynamics.
Brian J. Anderson   +18 more
doaj   +1 more source

Excess of Sodium Ions Density Required to Create a Wide Current at the Hermean Magnetopause

open access: yesUniverse, 2021
In this paper we consider an unusual structure, twice observed at the magnetopause of Mercury, and called the “Double Magnetopause”. Presumably, it is associated with a current sheet created by Na+ ions. Two alternative scenarios are considered.
Elena Belenkaya   +3 more
doaj   +1 more source

Global hybrid simulations of soft X-ray emissions in the Earth’s magnetosheath

open access: yesEarth and Planetary Physics
Earth’s magnetopause is a thin boundary separating the shocked solar wind plasma from the magnetospheric plasmas, and it is also the boundary of the solar wind energy transport to the magnetosphere.
Jin Guo   +8 more
doaj   +1 more source

Excitation of field line resonances by sources outside the magnetosphere [PDF]

open access: yesAnnales Geophysicae, 2005
Field line resonances are thought to be excited by sources either at the magnetopause or outside it. Recent observations suggest that they may be associated with coherent oscillations or pressure pulses in the solar wind. In either case the excitation
A. D. M. Walker
doaj   +1 more source

Finding Local Parallel Electric Fields in Magnetotail Reconnection Using a Two‐Spacecraft Method

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We investigate the use of a novel two‐spacecraft Liouville‐mapping method using data from the Magnetospheric Multiscale mission to determine local magnetic‐field‐aligned (parallel) electric fields in the Earth's magnetotail. The method detects the presence of local acceleration potentials by mapping phase‐space density between electron ...
J. D. White   +4 more
wiley   +1 more source

Local Time Asymmetry in Energetic Electron Distribution Within Saturn's Inner Magnetosphere

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Electrons of several hundred keV in Saturn's ring current are important seed components of the radiation belt. In this study, we have statistically analyzed the spatial distribution of energetic electrons on the equatorial plane of the inner magnetosphere based on the Cassini in situ observations.
Yimeng Li   +5 more
wiley   +1 more source

Evolution of Open Magnetic Flux During Substorms: The Effects of Dipole Tilt Angle

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract There is a long‐standing debate on the causes of the semiannual variation of geomagnetic activity. One of the prevailing hypotheses is that the Earth's dipole tilt angle Ψ ${\Psi }$ modulates the dayside reconnection rate, causing the so‐called equinoctial effect. Here we perform the first large‐scale statistical study to test this hypothesis.
A. Nair   +3 more
wiley   +1 more source

Interplanetary Shock‐Induced Magnetopause Motion: Comparison Between Theory and Global Magnetohydrodynamic Simulations

open access: yesGeophysical Research Letters, 2021
The magnetopause marks the outer edge of the Earth's magnetosphere and a distinct boundary between solar wind and magnetospheric plasma populations. In this study, we use global magnetohydrodynamic simulations to examine the response of the terrestrial ...
R. T. Desai   +12 more
doaj   +1 more source

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