Results 71 to 80 of about 10,009 (174)

Global Energy Circulation During a Solar Wind Density Pulse

Space Weather, Volume 24, Issue 4, April 2026.
Abstract We study the propagation and impacts of a strong density pulse through the magnetosphere during 11:40–12:00 UT near the peak of a geomagnetic storm on 3 February 2022. Using the Space Weather Modeling Framework Geospace global simulation, we show how the energy transport in the magnetosphere is enhanced promptly after the pulse arrival at the ...
Tuija Pulkkinen, Matti Ala‐Lahti, Austin Brenner, Gábor Tóth, Daniel Welling, Timothy Keebler   +5 more
wiley   +1 more source

Post‐Processing Probabilistic Forecasts of the Solar Wind by Data Mining Similar Scenarios

Space Weather, Volume 24, Issue 4, April 2026.
Abstract The solar wind speed at Earth is one of the most important parameters regarding the effects of space weather on society. Thus far, most approaches for predicting the solar wind speed produce a single‐value time series without uncertainty, or utilize ensemble methods which require custom calibration development.
Daniel E. da Silva, Yash Parlikar, Shaela I. Jones, Charles N. Arge   +3 more
wiley   +1 more source

Magnetic Reconnection as a Potential Trigger for Magnetotail Flapping at Mars: Insights From MAVEN and Tianwen‐1 Observations

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Magnetotail current sheet (CS) flapping is a universal plasma phenomenon observed at multiple planets, yet its triggering mechanisms remain poorly understood outside of Earth. At Mars, single‐spacecraft observations have also reported tail flapping, but the processes responsible for its onset have never been identified.
Yuanzheng Wen, Jasper S. Halekas, Han‐Wen Shen, Chi Zhang, Robert J. Lillis, Jiawei Gao, Norberto Romanelli, Long Cheng, Chuanfei Dong, Yingjuan Ma, Yaxue Dong, Shaosui Xu, David A. Brain, Junfeng Qin, Jared R. Espley, David L. Mitchell, Christian Mazelle, James P. McFadden, Shannon M. Curry   +18 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

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

Superposed Epoch Analysis of Extreme Geomagnetic Disturbances at Auroral Zone Latitudes Over a Solar Cycle

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Intense and rapidly changing electrical currents in near‐Earth space produce geomagnetic disturbances (GMDs) with large magnetic field rates of change (dB/dt) and in turn large geomagnetically induced currents (GICs) in nearby power lines and pipelines. This study builds on the work of Engebretson, Yang, et al.
Mark J. Engebretson, Giulia F. Mazza, Erik S. Steinmetz, Vyacheslav A. Pilipenko, Mark B. Moldwin, Martin G. Connors, Shin‐ichi Ohtani, Jesper W. Gjerloev   +7 more
wiley   +1 more source

Direct Evidence for Two-Fluid Effects in Molecular Clouds

, 2010
We present a combination of theoretical and simulation-based examinations of the role of two-fluid ambipolar drift on molecular line widths. The dissipation provided by ion-neutral interactions can produce a significant difference between the widths of ...
Ballesteros-Paredes, Balsara, Balsara, Balsara, Balsara, Balsara, Balsara, Basu, Bergin, Crutcher, Crutcher, Crutcher, David A. Tilley, Dinshaw S. Balsara, Fiedler, Jijina, Klessen, Langer, Li, Li, Mac Low, O'Sullivan, O'Sullivan, Oishi, Ostriker, Tassis, Tilley, Zweibel, Zweibel   +28 more
core   +1 more source

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

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

On resistive dissipation of Alfvén waves in an isothermal atmosphere

International Journal of Mathematics and Mathematical Sciences, 1996
In this paper we will examine the reflection and dissipation of Alfvén waves, resulting from a uniform vertical magnetic field, in an inviscid, resistive and isothermal atmosphere.
H. Y. Alkahby
doaj   +1 more source