Results 61 to 70 of about 1,001 (183)

Ionospheric Mechanisms Leading to Plasma‐Bubble Zonal Drift Reversal and Deformation During the 12 November 2025 Geomagnetic Storm

Space Weather, Volume 24, Issue 10, October 2026.
Abstract We present a multi‐instrument analysis of the ionospheric response to the intense geomagnetic storm of 12 November 2025 over the American sector, with emphasis on the longitudinally asymmetric deformation, latitudinal expansion, and zonal drift reversal of equatorial plasma bubbles (EPBs).
G. A. S. Picanço, I. Galkin, P. Song, E. Astafyeva, L. C. A. Resende, J. P. Marchezi, L. A. da Silva, P. R. Fagundes, C. M. Denardini, C. Martinis, A. M. Santos, V. G. Pillat, A. J. Coster, A. L. Christovam, S. R. Laranja, M. A. M. Lopes   +15 more
wiley   +1 more source

Entropy-mode Imprints in the Solar Corona: Nonexponential Damping and Phase Shifts of Compressive Oscillations

The Astrophysical Journal Letters
Magnetohydrodynamic waves in coronal loops provide key seismological diagnostics through their characteristic time signatures. While fast and slow magnetoacoustic modes are routinely exploited, the entropy mode, despite being another eigenmode of the ...
Dmitrii Kolotkov, Sergey Belov, Mohamed Sherif   +2 more
doaj   +1 more source

STUDY OF SOLAR ENERGETIC PARTICLE ASSOCIATIONS WITH CORONAL EXTREME-ULTRAVIOLET WAVES [PDF]

The Astrophysical Journal, 2015
We study the relationship between large gradual solar energetic particle (SEP) events and associated extreme-ultraviolet (EUV) wave properties in 16 events that occurred between 2010 August and 2013 May and were observed by SDO, the Solar and Heliospheric Observatory (SOHO), and/or STEREO.
Jinhye Park, D. E. Innes, R. Bucik, Y.-J. Moon, S. W. Kahler   +4 more
openaire   +2 more sources

A Near‐Real‐Time Deep‐Learning Solar Flare Forecasting System Supported by SDO/HMI and ASO‐S/FMG Magnetograms

Space Weather, Volume 24, Issue 10, October 2026.
Abstract This study develops and evaluates five deep learning models, including image‐based (CNN, SwinT) and video‐based (CNN‐LSTM, SwinT‐LSTM, Video SwinT), to forecast ≥ ${\ge} $M‐class flares within the next 24 hr using cross‐validation (CV) data sets.
Yongshang Lv, Pengchao Yan, Yanfang Zheng, Xuebao Li, Suo Liu, Ting Li, Jiaben Lin, Rui Wang, Liang Dong, Zamri Zainal Abidin, Noraisyah Mohamed Shah, Honglei Jin, Hongwei Ye, Shunhuang Zhang, Xiaotian Wang, JinFang Wei, Zixian Wu, Xusheng Huang   +17 more
wiley   +1 more source

Energy and Mass Transport Associated with Impulsive Spicular Flows in Solar Coronal Holes

The Astrophysical Journal Letters
How the solar atmosphere is heated from a temperature of about 5000 to 6000 K in the lower atmosphere to about 1–2 MK in the corona has challenged the astrophysical community for nearly 80 yr.
Lei Ni, Jun Lin, Tanmoy Samanta, Guanchong Cheng, Yifu Wang, Robert Erdélyi   +5 more
doaj   +1 more source

Analysis of the Geomagnetic Storm of May 2024 at Ebre and Livingston Island Observatories and of the GICs Generated in the Spanish Power Transmission Grid

Space Weather, Volume 24, Issue 10, October 2026.
Abstract This study analyzes the 10–12 May 2024 geomagnetic storm using data from the Ebre (Spain) and Livingston Island (Antarctica) geomagnetic observatories, together with modeling approaches to assess its impact on the Spanish power transmission grid.
J. M. Torta, S. Marsal
wiley   +1 more source

Magnetic Waves In Solar Coronal Loops

, 2014
Final presentations of the Center for Astrophysics HEA/SSP Solar Summer Intern Program.
openaire   +1 more source

Physics‐Based Ensemble of Models for F2 Peak Parameters of the Ionosphere: Comparison With COSMIC‐2 Measurements

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Space weather events can significantly alter the ionospheric electron density, affecting signal transmission and navigation accuracy in satellite‐based systems. Consequently, there is an urgent need for reliable forecasting of the Thermosphere‐Ionosphere (TI) system.
J. Pereira, I. Fernandez‐Gomez, F. Heymann, F. Günzkofer, C. Borries, M. Schmidt   +5 more
wiley   +1 more source

Nonlinear Wave Damping by Kelvin–Helmholtz Instability-induced Turbulence

The Astrophysical Journal
Magnetohydrodynamic kink waves naturally form as a consequence of perturbations to a structured medium, for example, transverse oscillations of coronal loops. Linear theory has provided many insights into the evolution of linear oscillations, and results
Andrew Hillier, Iñigo Arregui, Takeshi Matsumoto   +2 more
doaj   +1 more source

Type‐III Solar Radio Bursts at Mars: A 16.5‐Year Catalog From Mars Express‐MARSIS at 0.1–5.5 MHz

Space Weather, Volume 24, Issue 10, October 2026.
Abstract The most intense radio feature in the Solar System are the solar Type‐III radio bursts, which are associated with electron beams that propagate along open magnetic field lines. Although solar radio bursts have been studied since the 1940s, observations remain mainly restricted within 1 AU.
Beatriz Sánchez‐Cano, Samuel Carter, Mark Lester, Olivier Witasse, Caitriona M. Jackman, Sophie Musset, Baptiste Cecconi, Louis Siebenaler, Simon Joyce, Luis Alberto Cañizares, Andrea Cicchetti, Alexandra R. Fogg, Peter Gallagher, Christopher Gerekos, Yuki Harada, Alessandro Ippolito, Immanuel Jebaraj, Dikshita Meggi, Roberto Orosei, Hermann Opgenoorth, Jeff Plaut, Catherine Regan, Katerina Stergiopoulou   +22 more
wiley   +1 more source