Results 71 to 80 of about 1,286 (173)

Early Solar Wind and Dynamo Magnetic Field Topology Predictions for (16) Psyche and Other Asteroids

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Asteroid (16) Psyche is a metal‐rich body that might record an ancient coherent magnetization if some relict crust or mantle is preserved. Herein, we use magnetohydrodynamic simulations to predict (16) Psyche's field topology for several distinct pathways: (i) an early solar wind‐induced magnetization imparted after a larger body was impacted,
Atma Anand, Jonathan Carroll‐Nellenback, Eric G. Blackman, John A. Tarduno   +3 more
wiley   +1 more source

Localized Magnetopause Erosion at Geosynchronous Orbit by Reconnection

Geophysical Research Letters
This study presents observations of magnetopause reconnection and erosion at geosynchronous orbit, utilizing in situ satellite measurements and remote sensing ground‐based instruments.
Hyangpyo Kim, Rumi Nakamura, Hyunju K. Connor, Ying Zou, Ferdinand Plaschke, Niklas Grimmich, Brian M. Walsh, Kathryn A. McWilliams, J. Michael Ruohoniemi   +8 more
doaj   +1 more source

Toward a Dynamic Model for Topside Ionospheric Irregularities: Spherical Harmonic Decomposition

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Ionospheric irregularities arise from highly dynamic and turbulent processes related to magnetosphere‐ionosphere coupling and can lead to electromagnetic signal distortion or loss of lock events in global navigation satellite system signals, representing a hazard associated with space weather events. For this reason, understanding and modeling
S. Mestici, P. De Michelis, G. Consolini, A. Pignalberi, R. Tozzi, F. Giannattasio, F. Berilli   +6 more
wiley   +1 more source

Relative Contributions of Solar Wind Dynamic Pressure and Interplanetary Electric Field on the Early Positive Part of Main Phase of Geomagnetic Storms

Space Weather, Volume 24, Issue 3, March 2026.
Abstract The important early declining part of the main phase (MP) of geomagnetic storms in SYM‐H (and Dst) from positive main phase onset (MPO) to 0‐level of SYM‐H was somehow missed in the treatment of the storms. We included the missed part (or revised the storms) by raising the 0‐level of SYM‐H to MPO‐level, and showed that the inclusion is ...
Jijin K. Raj, N. Balan, Qing‐He Zhang, Y. Otsuka, K. Shiokawa, Zan‐Yang Xing, V. Manu, B. Nilam, Yu‐Zhang Ma, Yong Wang   +9 more
wiley   +1 more source

10 May 2024 Gannon Storm: Connecting Energy Flux With Field Aligned Currents and Cross Polar Cap Potential

Space Weather, Volume 24, Issue 3, March 2026.
Abstract A simulation of the 10 May 2024 geomagnetic storm is used to investigate the theory of cross polar cap potential (CPCP) saturation in Earth's magnetosphere‐ionosphere system. THEMIS B (ARTEMIS P1) satellite magnetic field and plasma measurements at lunar distance upstream in the solar wind drives the Space Weather Modeling Framework (SWMF) in ...
A. Brenner, T. I. Pulkkinen, Eliah F. M. T. São Sabbas, D. G. Sibeck, D. T. Welling, A. J. Ridley, V. S. Gowtam, M. R. Hairston   +7 more
wiley   +1 more source

Solar‐Wind Triggering of Substorm Onset During the May 2024 Superstorm: Coordinated Global Observations and Simulations

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Substorms are often described by a loading‐unloading cycle, where onset follows gradual accumulation of solar wind magnetic flux in the magnetosphere. Yet observations indicate that intense substorms can also be directly driven, though the underlying mechanism remains unresolved.
Yong Ren, Minghui Zhu, Lei Dai, Walter Gonzalez, Shan Wang, Chi Wang, C. Philippe Escoubet, Jiaojiao Zhang, Qiugang Zong   +8 more
wiley   +1 more source

Spectral Properties and Energy Injection in Mercury's Magnetotail Current Sheet

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Mercury's magnetotail hosts a thin and highly dynamic current sheet (CS), where magnetic reconnection and strong fluctuations frequently occur. Here, we statistically analyze magnetic field power spectra across 370 magnetotail CSs observed by MESSENGER.
Xinmin Li, Chuanfei Dong, Liang Wang, Sae Aizawa, Lina Z. Hadid, Chi Zhang, Hongyang Zhou, James A. Slavin, Jiawei Gao, Mirko Stumpo, Wei Zhang   +10 more
wiley   +1 more source

Searching for Electron‐Only Magnetic Reconnection on Lunar Crustal Magnetic Fields: A Case Study of Kaguya Low‐Altitude Observations

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Due to the lack of low‐altitude (<∼ ${< } \sim $50 km), high‐time‐resolution measurements, expected electron‐only magnetic reconnection near lunar magnetic anomalies (LMAs) has not been directly observed by lunar orbiters even though it is expected from numerical simulations and laboratory experiments.
Kohei Ogino, Yuki Harada, Yoshifumi Saito, Shoichiro Yokota, Masaki N. Nishino, Futoshi Takahashi, Hisayoshi Shimizu, Yoshiya Kasahara, Atsushi Kumamoto   +8 more
wiley   +1 more source

Estimating the subsolar magnetopause position from soft X-ray images using a low-pass image filter

Earth and Planetary Physics
The Lunar Environment heliospheric X-ray Imager (LEXI) and Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) missions will image the Earth’s dayside magnetopause and cusps in soft X-rays after their respective launches in the near future, to ...
Hyangpyo Kim, Hyunju K. Connor, Jaewoong Jung, Brian M. Walsh, David Sibeck, Kip D. Kuntz, Frederick S. Porter, Catriana K. Paw U, Rousseau A. Nutter, Ramiz Qudsi, Rumi Nakamura, Michael Collier   +11 more
doaj   +1 more source

The Electric Properties of the Magnetopause Boundary Layer

Magnetochemistry
The magnetopause plays a pivotal role in the coupling among solar wind, the magnetosheath, and the magnetosphere. By analyzing magnetopause crossing events using MMS, we reveal a local non-neutrality of electric charges in the magnetopause boundary layer
Lai Gao, Chao Shen, Yong Ji, Yufei Zhou, Yulia V. Bogdanova   +4 more
doaj   +1 more source