Results 71 to 80 of about 103,965 (278)

A Particle Simulation for the Axisymmetric Pulsar Magnetosphere: II. the case of dipole field

open access: yes, 2011
The main issue of the pulsar magnetosphere is how the rotation power is converted into both particle beams which causes pulsed emissions, and a highly relativistic wind of electron-positron plasmas which forms surrounding nebulae shining in X-rays and ...
Abdo   +49 more
core   +1 more source

Gamma-Ray Light Curves from Pulsar Magnetospheres with Finite Conductivity [PDF]

open access: yes, 2012
We investigate the shapes of \gamma-ray pulsar light curves using 3D pulsar magnetosphere models of finite conductivity. These models, covering the entire spectrum of solutions between vacuum and force-free magnetospheres, for the first time afford ...
Abdo   +19 more
core   +3 more sources

Dissipation, energy transfer, and spin-down luminosity in 2.5D PIC simulations of the pulsar magnetosphere [PDF]

open access: yes, 2014
We perform 2.5D axisymmetric simulations of the pulsar magnetosphere (aligned dipole rotator) using the charge conservative, relativistic, electromagnetic particle in cell code picsar.
M. Belyaev
semanticscholar   +1 more source

Self‐Regulating Feedback Between Field Line Curvature Scattering, Ring Current Pressure, and Magnetic Configuration

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract We incorporate field line curvature (FLC) scattering into a kinetic ring current model two‐way coupled with a global magnetospheric MHD model to investigate its role in SYM‐H prediction and global magnetospheric dynamics. FLC scattering reduces plasma pressure in regions where the ion gyroradius is comparable to the local FLC radius.
Suk‐Bin Kang   +5 more
wiley   +1 more source

Validation of the use of THEMIS-B and THEMIS-C as a near-Earth solar wind monitor

open access: yesEarth and Planetary Physics, 2022
Two THEMIS (Time History of Events and Macroscale Interactions during Substorms) spacecraft, B and C, began orbiting the Moon in 2011 and have since provided routine measurements of the plasma conditions in the lunar orbit.
DianJun Zhang, WenLong Liu, Zhao Zhang
doaj   +1 more source

Two‐Dimensional Motions of Diffuse Auroral Patches Under Upstream Dynamic Pressure Enhancements of the Bow Shock

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract In this study, we identified 51 dayside diffuse auroral patches and examined their two‐dimensional evolutions by using the Time History of Events and Macroscale Interactions during Substorms probes and the ground‐based all‐sky imager at the South Pole.
Xinyu Xu   +6 more
wiley   +1 more source

Ray-tracing simulations of whistler-mode wave propagation in different rescaled dipole magnetic fields

open access: yesEarth and Planetary Physics, 2022
Kinetic simulation is a powerful tool to study the excitation and propagation of whistler-mode waves in the Earth’s inner magnetosphere. This method typically applies a scaled-down dipole magnetic field to save computational time.
YangGuang Ke   +4 more
doaj   +1 more source

Oxygen and hydrogen ion abundance in the near-Earth magnetosphere: Statistical results on the response to the geomagnetic and solar wind activity conditions

open access: yes, 2012
The composition of ions plays a crucial role for the fundamental plasma properties in the terrestrial magnetosphere. We investigate the oxygen-to-hydrogen ratio in the near-Earth magnetosphere from -10 RE274 keV O+ ion intensities, relative to the ...
Daly, Patrick W.   +6 more
core   +1 more source

Ionospheric Day‐to‐Day Variability Driven by Nonlinear Interactions Between the Terdiurnal Tide and Planetary Waves Under Magnetospheric Modulation

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract Day‐to‐day variability is a persistent feature of the ionosphere, but distinguishing contributions from the atmosphere below or geospace above remains unclear. Here, simultaneous observations of thermospheric meridional winds and ionospheric electron density from the Sanya Incoherent Scatter Radar (SYISR) reveal that the terdiurnal tide (TDT),
Xu Zhou   +11 more
wiley   +1 more source

Control of the Jovian Magnetopause by Iogenic Plasma: Initial Results From Global MHD Simulations

open access: yesGeophysical Research Letters
The size and variability of Jupiter's magnetosphere are not only determined by upstream conditions but also substantially influenced by internal processes within Jupiter's magnetosphere, specifically the dynamics of the rotation magnetodisc.
Enhao Feng   +6 more
doaj   +1 more source

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