Results 141 to 150 of about 17,746 (238)

Earth's Alfvén Wings Driven by the April 2023 Coronal Mass Ejection

Geophysical Research Letters
We report a rare regime of Earth's magnetosphere interaction with sub‐Alfvénic solar wind in which the windsock‐like magnetosphere transforms into one with Alfvén wings.
Li‐Jen Chen, Daniel Gershman, Brandon Burkholder, Yuxi Chen, Menelaos Sarantos, Lan Jian, James Drake, Chuanfei Dong, Harsha Gurram, Jason Shuster, Daniel B. Graham, Olivier Le Contel, Steven J. Schwartz, Stephen Fuselier, Hadi Madanian, Craig Pollock, Haoming Liang, Matthew Argall, Richard E. Denton, Rachel Rice, Jason Beedle, Kevin Genestreti, Akhtar Ardakani, Adam Stanier, Ari Le, Jonathan Ng, Naoki Bessho, Megha Pandya, Victoria Wilder, Christine Gabrielse, Ian Cohen, Hanying Wei, Christopher T. Russell, Robert Ergun, Roy Torbert, James Burch   +35 more
doaj   +1 more source

Simulated Operational Testing of the Prototype Implementation of the SOFIE Model: The 2025 Space Weather Prediction Testbed Exercise

Space Weather, Volume 24, Issue 3, March 2026.
Abstract The CLEAR Space Weather Center of Excellence's solar energetic particle (SEP) model, SOlar wind with FIeld lines and Energetic particles (SOFIE), was run and evaluated on‐site during the Space Weather Prediction Testbed (SWPT) exercise at the National Oceanic and Atmospheric Administration's Space Weather Prediction Center (NOAA/SWPC) in May ...
Weihao Liu, Lulu Zhao, Igor V. Sokolov, Kathryn Whitman, Tamas I. Gombosi, Nishtha Sachdeva, Eric T. Adamson, Hazel M. Bain, Claudio Corti, M. Leila Mays, Michelangelo Romano, Carina R. Alden, Madeleine M. Anastopulos, Mary E. Aronne, Janet E. Barzilla, Wesley T. Cook, Shawn D. Dahl, Hannah Hermann, Anthony J. Iampietro, A. Steve Johnson, Elizabeth A. Juelfs, Melissa R. Kane, Jonathan D. Lash, Kimberly Moreland, Briana K. Muhlestein, Teresa Nieves‐Chinchilla, Edward Semones, James F. Spann, Earl M. Spencer, Luke A. Stegeman, Christopher J. Stubenrauch, Kenneth L. Tegnell   +31 more
wiley   +1 more source

Extended Lead‐Time Geomagnetic Storm Forecasting With Solar Wind Ensembles and Machine Learning

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Geomagnetic storms are large disruptions of the magnetosphere, which can impact satellites, communications systems, and power grids, causing significant technological and economic impacts. Current forecasting models utilize L1 satellite data, constraining lead time to a few hours, often insufficient for effective mitigation. We investigate how
M. Billcliff, A. W. Smith, M. Owens, W. L. Woo, L. Barnard, N. Edward‐Inatimi, I. J. Rae   +6 more
wiley   +1 more source

Expansion-induced Three-part Morphology of the 2021 December 4 Coronal Mass Ejection

The Astrophysical Journal
The typical structure of a coronal mass ejection (CME) was identified as a three-part morphology, which includes a bright front, a dark cavity, and a bright core, with the cavity and the core generally regarded as flux rope and eruptive prominence ...
Liping Yang, Xueshang Feng, Fang Shen, Ming Xiong, Chenglong Shen, Yutian Chi, Yuming Wang, Kuo Yan, Mengxuan Ma, Yufen Zhou, Man Zhang, Xinhua Zhao   +11 more
doaj   +1 more source

Kinetic Structure of an Interplanetary Shock Observed at Two Heliocentric Longitudes

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Collisionless shocks convert bulk flow energy into heat, electromagnetic fields, and non‐thermal particle populations. Recent studies suggest that downstream magnetic oscillations could play an important role in ion‐scale energy dissipation at low‐Mach‐number shocks; however, the specific shock and plasma parameters involved remain poorly ...
J. J. Boldú, D. B. Graham, M. Morooka, M. André, Yu. V. Khotyaintsev, A. Dimmock, A. Lalti, D. Píša, J. Souček, M. Maksimovic, P. Louarn, A. Fedorov, C. J. Owen   +12 more
wiley   +1 more source

Time-dependent Hinode/EIS Atlas of a Coronal Mass Ejection Containing Cool Material

The Astrophysical Journal
We report the first time-dependent spectral atlas of a coronal mass ejection (CME) observed by the Hinode/Extreme Ultraviolet Imaging Spectrometer (EIS).
E. M. Wraback, E. Landi, W. B. Manchester   +2 more
doaj   +1 more source

Editorial: Magnetic Flux Ropes: From the Sun to the Earth and Beyond

Frontiers in Astronomy and Space Sciences, 2020
Rui Liu, Rui Liu, Rui Liu, Jie Zhang, Yuming Wang, Yuming Wang, Hongqiang Song   +6 more
doaj   +1 more source

Martian Atmospheric Loss Through Foreshock Transient Events

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract At Mars, the MAVEN spacecraft has made observations of Hot Flow Anomalies (HFAs) in the foreshock. Due to the bow shock's proximity to the planet, it is theorized that HFAs contribute to atmospheric escape at Mars through the excavation of ionospheric ions.
Alexandros C. Cooke‐Politikos, Sergey Shuvalov, Yaxue Dong, Yi Qi, David A. Brain, Jasper S. Halekas   +5 more
wiley   +1 more source

Modeling a Carrington-scale Stellar Superflare and Coronal Mass Ejection from κ ¹ Cet. [PDF]

Astrophys J, 2019
Lynch BJ, Airapetian VS, DeVore CR, Kazachenko MD, Lüftinger T, Kochukhov O, Rosén L, Abbett WP.   +7 more
europepmc   +1 more source

Ensemble Prediction of a Halo Coronal Mass Ejection Using Heliospheric Imagers. [PDF]

Space Weather, 2018
Amerstorfer T, Möstl C, Hess P, Temmer M, Mays ML, Reiss MA, Lowrance P, Bourdin PA.   +7 more
europepmc   +1 more source