Results 91 to 100 of about 2,400 (232)
Space Weather, Volume 24, Issue 6, June 2026.Abstract Techniques developed in the past few years enable the derivation of multiscale ion convection and particle precipitation patterns from high‐resolution ground‐based observations, and it has been shown in previous studies that such multiscale geomagnetic forcing can contribute significantly to ionospheric and thermospheric disturbances.
Cheng Sheng +6 more
wiley +1 more source
Plasma mixing driven by the collisionless Kelvin–Helmholtz instability
Astronomy & AstrophysicsContext. Simulations and observations of the low-latitude magnetosphere–magnetosheath boundary layer indicate that the Kelvin–Helmholtz instability (KHI) drives vortex structures that enhance plasma mixing and magnetic reconnection, thereby influencing ...
Ferro Silvia +4 more
doaj +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract This study develops a semi‐empirical framework for Dst index forecasting by integrating the PPMLR‐MHD model of Earth's magnetosphere with four established empirical models (Burton, UCB, AK2, and Wang). The framework partitions the physics: global magnetopause and tail currents are simulated by MHD, while the ring current contribution is ...
Jiawen Yue +6 more
wiley +1 more source
Ultra-High-Energy Cosmic Rays Accelerated by Magnetically Dominated Turbulence
The Astrophysical Journal LettersUltra-high-energy cosmic rays (UHECRs), particles characterized by energies exceeding 10 ^18 eV, are generally believed to be accelerated electromagnetically in high-energy astrophysical sources.
Luca Comisso +2 more
doaj +1 more source
Space Weather, Volume 24, Issue 6, June 2026.Abstract This study presents a detailed case study of the ionospheric impacts of moderate (G2) and severe (G4) geomagnetic storms over the Latin American sector, with particular emphasis on the formation and suppression of equatorial plasma bubbles (EPBs).
C. S. Carmo +13 more
wiley +1 more source
Particle Acceleration in Relativistic Alfvénic Turbulence
The Astrophysical JournalStrong magnetically dominated Alfvénic turbulence is an efficient engine of nonthermal particle acceleration in a relativistic collisionless plasma.
Cristian Vega +2 more
doaj +1 more source
Terrestrial Space Weather Protection Through Human‐Produced Mass‐Loading
Space Weather, Volume 24, Issue 6, June 2026.Abstract While humans become more reliant on Earth's space environment, the potential for significant harm from severe space weather continues to grow. As structures from the sun reach Earth's magnetosphere and space environment, they deposit energy that fuels geomagnetic storms.
B. M. Walsh, D. T. Welling, Z. Huang
wiley +1 more source
The Theory of Resonant Cosmic Ray–driven Instabilities—Growth and Saturation of Single Modes
The Astrophysical JournalCosmic-ray (CR) feedback is critical for galaxy formation as CRs drive galactic winds, regularize star formation in galaxies, and escape from active galactic nuclei to heat the cooling cores of galaxy clusters.
Rouven Lemmerz +3 more
doaj +1 more source
Prediction Efficiency Skill Scores for Event Detection Analysis
Space Weather, Volume 24, Issue 6, June 2026.Abstract Prediction efficiency (PE) is a skill score that compares the data‐model metric of mean square error against the variance of the observations (i.e., using the average of the observed values as the “reference model” in the general skill score formula).
Michael W. Liemohn +3 more
wiley +1 more source