Results 131 to 140 of about 31,874 (242)

A Robust Empirical Relationship Between Speed and Turbulence Energy in the Near‐Earth Solar Wind

Space Weather, Volume 24, Issue 5, May 2026.
Abstract The connection between turbulence and solar‐wind acceleration, long known in space physics, is further developed in this study by establishing a robust empirical law that relates the bulk‐flow speed to the magnetohydrodynamic‐scale fluctuation energy in the plasma. The model is based on analysis of 25 years of near‐Earth observations by NASA's
Rohit Chhiber, Yanwen Wang, Manuel E. Cuesta, Jiaming Wang, Sohom Roy   +4 more
wiley   +1 more source

Updates, Examples and Validation of the Global Ionosphere Thermosphere Model

Space Weather, Volume 24, Issue 5, May 2026.
Abstract This study provides an updated description, example simulations, and validation of the Global Ionosphere Thermosphere Model (GITM). The updates to GITM include using an exothermic semi‐implicit chemistry scheme that no longer requires an altitude dependent heating efficiency; an ionospheric wind‐driven dynamo; improved neutral, ion, and ...
A. J. Ridley, C. Wu, A. Bukowski, J. Bell   +3 more
wiley   +1 more source

Research Progress of Interplanetary Physics in Mainland China

Chinese Journal of Space Science, 2020
Xinhua ZHAO, Chenglong SHEN, Jiansen HE, Hao NING   +3 more
openaire   +1 more source

AMPERE Observations of the Asymmetry Toward Stronger Birkeland Currents in the Northern Hemisphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We quantify the asymmetry between the Birkeland currents (also known as field‐aligned currents) in the Northern and Southern Hemispheres. We use data from the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) in 2010–2024 inclusive for both hemispheres, compute the observed asymmetry, and then subtract the modeled
John C. Coxon, Sarah K. Vines, Wenli Mo, Matthew J. Townson, Clare E. J. Watt, I. Jonathan Rae, D. Shaun Bloomfield, Andrew W. Smith, Stephen E. Milan, Brian J. Anderson, Atlas M. Patrick, Maria C. Hasler   +11 more
wiley   +1 more source

Regulation of Solar Wind Electron Temperature Anisotropy by Collisions and Instabilities

The Astrophysical Journal
Typical solar wind electrons are modeled as being composed of a dense but less energetic thermal “core” population plus a tenuous but energetic “halo” population with varying degrees of temperature anisotropies for both species.
Peter H. Yoon, Chadi S. Salem, Kristopher G. Klein, Mihailo M. Martinović, Rodrigo A. López, Jungjoon Seough, Muhammad Sarfraz, Marian Lazar, Shaaban M. Shaaban   +8 more
doaj   +1 more source

Kelvin‐Helmholtz Stability Analysis as a Function of Dipole Tilt and Solar Wind Property

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Kelvin‐Helmholtz instabilities (KHIs) play a critical role in facilitating mass and momentum transport across the magnetopause boundary. Recent studies have demonstrated that KHI occurrence exhibits both seasonal and diurnal variability, with enhanced activity when Earth's magnetic dipole is more closely aligned with the northward direction in
Alexander Navarro, Xuanye Ma, Jay Johnson, Simon Wing, Shiva Kavosi, Yu‐Lun Liou   +5 more
wiley   +1 more source

Solar Wind‐Magnetosphere‐Ionosphere Coupling During the October 2024 Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Two geomagnetic storms occurred in October 2024 (Oct 6‐9 and 10–12), driven by the impact of a series of interplanetary coronal mass ejections on the magnetosphere. The first was a moderate storm, with peak Sym‐H near −150 nT, whereas the second was intense, Sym‐H reaching −340 nT.
S. E. Milan, M. K. Mooney, G. E. Bower, R. M. Hodnett, U. V. Amerstorfer, C. Möstl, A. Samsonov, B. J. Anderson, J. Gjerloev, S. K. Vines   +9 more
wiley   +1 more source

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch, Sven Simon, Peter Kollmann, C. Michael Haynes   +3 more
wiley   +1 more source

From Flux Rope to Dipolarization Front: Global MHD‐AEPIC Simulations of Mercury's Magnetosphere and Magnetotail Dynamics

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Mercury's small magnetosphere and strong solar wind driving result in the rapid formation of planetward and tailward‐moving flux ropes (FRs) and dipolarization fronts (DFs) in its magnetotail. These are characterized by large variations in the dipole‐aligned magnetic field component Bz $\left({B}_{z}\right)$ over ∼1 ${\sim} 1$ s timescales and
Alexander T. Cushen, Xianzhe Jia, James Slavin, Yuxi Chen, Weijie Sun, Gabor Toth   +5 more
wiley   +1 more source

Evolution of Magnetospheric Boundary Layers Under the 10 May 2024 ICME Impact

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract On 10 May 2024, an interplanetary coronal mass ejection‐driven shock impacted the dayside magnetopause, compressing it to ∼5 RE. A northward interplanetary magnetic field suppressed dayside reconnection and allowed a clear investigation of the magnetosphere response.
Sheng Li, Gilbert Pi, Zdeněk Němeček, Jana Šafránková, Trevor W. Leonard, Yang‐Yi Sun   +5 more
wiley   +1 more source