Results 81 to 90 of about 9,065 (177)

How Well Can Solar Wind Parameters Predict Outer Radiation Belt Electron Flux?

Space Weather, Volume 24, Issue 4, April 2026.
Abstract The electron flux in the outer radiation belt is primarily governed by interactions between the solar wind and magnetosphere. While geomagnetic indices are widely used for modeling and forecasting, their real‐time availability is limited. In contrast, solar wind parameters can be continuously monitored by a single satellite at the L1 ${L}_{1}$
Yutong Li, Mengli Tan, Xin Tao
wiley   +1 more source

Transverse waves in coronal flux tubes with thick boundaries: The effect of longitudinal flows

, 2019
Observations show that transverse magnetohydrodynamic (MHD) waves and flows are often simultaneously present in magnetic loops of the solar corona.
Soler, Roberto
core   +1 more source

Ion-scale spectral break of solar wind turbulence at high and low beta [PDF]

, 2014
The power spectrum of magnetic fluctuations in the solar wind at 1 AU displays a break between two power laws in the range of spacecraft-frame frequencies 0.1 to 1 Hz.
Bale, SD, Boldyrev, S, Chen, CHK, Leung, L, Maruca, BA   +4 more
core   +2 more sources

Poloidal Field Line Resonances Driven by a Fast Wave

Geophysical Research Letters
We present numerical simulations of the excitation of resonant poloidal Alfvén waves. The resulting Alfvén waves could be loosely described as “high‐m” (m is the azimuthal wave number) in as much as the azimuthal scale of the wave is much less than the ...
Andrew Wright, Thomas Elsden, Alexander Degeling, Ian R. Mann, Louis Ozeke, Timothy Yeoman, Jasmine Sandhu, Kazue Takahashi   +7 more
doaj   +1 more source

Remarks on the parallel propagation of small-amplitude dispersive Alfvénic waves [PDF]

Nonlinear Processes in Geophysics, 1999
The envelope formalism for the description of a small-amplitude parallel-propagating Alfvén wave train is tested against direct numerical simulations of the Hall-MHD equations in one space dimension where kinetic effects are neglected.
S. Champeaux, D. Laveder, T. Passot, P. L. Sulem   +3 more
doaj  

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

Geophysical 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, Yu. V. Khotyaintsev, C. Norgren, D. B. Graham, L. Richard   +4 more
wiley   +1 more source

Relative drifts and temperature anisotropies of protons and $\alpha$ particles in the expanding solar wind -- 2.5D hybrid simulations

, 2014
We perform 2.5D hybrid simulations to investigate the origin and evolution of relative drift speeds between protons and $\alpha$ particles in the collisionless turbulent low-$\beta$ solar wind plasma.
Maneva, Y. G., Ofman, L., Viñas, A.
core   +1 more source

First direct observation of a torsional Alfvén oscillation at coronal heights [PDF]

, 2019
Context. Torsional Alfvén waves are promising candidates for the transport of energy across different layers of the solar atmosphere. They have been predicted theoretically for decades.
Froment, Clara, Kohutova, Petra, Verwichte, E. (Erwin)   +2 more
core   +4 more sources

Juno Observations of Io's Alfvén Wing From 23 Io Radii

Geophysical Research Letters
On 13 June, day 165 of 2024, Juno passed through Io's main Alfvén wing at a distance of ∼23 Io radii south of the moon during perijove 62. Evidence for this passage was clearly seen in the Juno plasma wave, magnetometer, and plasma data.
W. S. Kurth, A. H. Sulaiman, J. E. P. Connerney, F. Allegrini, P. Valek, R. W. Ebert, C. Paranicas, G. B. Clark, N. Kruegler, G. B. Hospodarsky, C. W. Piker, S. Kotsiaros, M. Imai, S. J. Bolton   +13 more
doaj   +1 more source

Global Impacts of Ultra‐Low‐Frequency Waves: 1. Thermospheric Responses and Traveling Atmospheric Disturbances

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Ultra‐low‐frequency (ULF) waves cause local Thermosphere‐Ionosphere (T‐I) perturbations, but their impacts on the global T‐I system including the generation of Traveling Atmospheric Disturbances (TADs) have never been evaluated. The mechanisms responsible for the TAD generation and propagation, whether through dynamic or thermal process, are ...
Haonan Wu, Wenbin Wang, Xueling Shi, Dong Lin, Michael D. Hartinger, Joseph B. H. Baker, Shibaji Chakraborty   +6 more
wiley   +1 more source