Results 51 to 60 of about 13,868 (214)

Superposition of Doppler‐Shifting Magnetopause Kelvin‐Helmholtz Modes Through Dynamic Mode Decomposition of a Global MHD Simulation

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Kelvin‐Helmholtz instability (KHI) mediates the viscous‐like solar‐terrestrial interaction by generating magnetopause surface waves that quickly become non‐linear. Basic theory predicts the locally most‐unstable linear wave dominates.
H. M. Kelly, M. O. Archer, J. P. Eastwood, M. Heyns, J. W. B. Eggington, J. P. Chittenden   +5 more
wiley   +1 more source

Betatron Cooling of Halo and Strahl Electrons in the Solar Wind

The Astrophysical Journal Letters
It is widely recognized that adiabatic acceleration plays an essential role in the dynamics of the solar wind electron distribution. Nevertheless, the role of electron adiabatic cooling remains poorly understood, at least from an observational standpoint.
Weiduo Meng, Jianpeng Guo, Yan Chen, Zelin Wang, Huishan Fu, Yi Wang, Yong Wei   +6 more
doaj   +1 more source

Electron Dispersion at the Electron Edge of the Earth's Magnetospheric Cusp

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission observes electron energy‐latitude dispersion at the equatorward edge of the magnetospheric cusp, and high‐cadence Analyzer for Cusp Electrons (ACE) measurements resolve the dispersed edge. The inverse velocity dispersion (low energy before high energy)
J. S. Halekas, S. A. Henderson, S. R. Bounds, S. Ruhunusiri, A. Moore, I. W. Christopher, D. M. Miles, J. B. Bonnell, B. L. Burkholder, I. H. Cairns, L.‐J. Chen, H. K. Connor, I. M. DesJardin, J. C. Dorelli, C. Feltman, S. A. Fuselier, K. Goodrich, G. Hospodarsky, A. N. Jaynes, J. Labelle, M. Øieroset, S. M. Petrinec, B. Powers, K. J. Trattner, S. L. Soni, R. Strangeway, D. Sur   +26 more
wiley   +1 more source

Imaging and Radio Signatures of Shock–Plasmoid Interaction

The Astrophysical Journal Letters
Understanding how shocks interact with coronal structures is crucial for understanding the mechanisms of particle acceleration in the solar corona and inner heliosphere.
Pankaj Kumar, Judith T. Karpen, P. K. Manoharan, N. Gopalswamy   +3 more
doaj   +1 more source

Large‐Scale Magnetosheath Jets Formed by Shock‐Discontinuity Interactions: A Three‐Dimensional Global Hybrid Simulation

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Magnetosheath high‐speed jets with enhanced dynamic pressure are common in Earth's magnetosheath and can impinge on the magnetopause, driving pronounced boundary deformation. Recent observations indicate that shock–discontinuity interactions (SDIs) can generate magnetosheath jets, but the formation mechanism is still unclear.
Jin Guo, San Lu, Quanming Lu, Yufei Zhou, Boyi Wang, Tianran Sun, Yihong Guo, Zhongwei Yang, Shimou Wang, Junyi Ren, Jiuqi Ma, Chao Shen, Xinliang Gao, Rongsheng Wang   +13 more
wiley   +1 more source

Turbulent Magnetic Reconnection as an Acceleration Mechanism in Earth’s Magnetotail

The Astrophysical Journal
Using electric and magnetic fields measured by the Magnetospheric Multiscale (MMS) mission, we construct a test-particle simulation of a turbulent magnetic reconnection region to investigate observed ion acceleration. We identify three types of energized
Daniel D. Sega, Robert E. Ergun
doaj   +1 more source

Radiation risks from large solar energetic particle events [PDF]

, 2007
Solar energetic particles (SEPs) constitute a radiation hazard to both humans and hardware in space. Over the past few years there have been significant advances in our knowledge of the composition and energy spectra of SEP events, leading to new ...
Cohen, C. M. S., Haggerty, D. K., Looper, M. L., Mason, G. M., Mewaldt, R. A., von Rosenvinge, T. T., Wiedenbeck, M. E.   +6 more
core   +1 more source

Transport of Water in a Transient, Impact‐Generated Atmosphere on Mercury

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Mercury's polar cold traps host water ice deposits that are likely populated with impact‐delivered water via Mercury's exosphere. However, Mercury's near‐sun location experiences an extremely high photodestruction rate that rapidly destroys water with a timescale of only ∼3.5 hr.
J. K. Steckloff, D. B. Goldstein, P. L. Varghese, L. M. Trafton, P. Prem   +4 more
wiley   +1 more source

Multispacecraft Energetic Particle Enhancements Associated with a Single Corotating Interaction Region

The Astrophysical Journal
The radial evolution of particles accelerated at corotating interaction regions (CIRs) is not fully understood, particularly the distance range over which this particle acceleration occurs and how the energy spectra are modulated by transport through the
M. J. Starkey, M. A. Dayeh, M. I. Desai, R. Bučík, S. T. Hart, H. A. Elliott   +5 more
doaj   +1 more source

Effects of interplanetary transport on derived energetic particle source strengths [PDF]

, 2010
We study the transport of solar energetic particles (SEPs) in the inner heliosphere in order to relate observations made by an observer at 1 AU to the number and total energy content of accelerated particles at the source, assumed to be near the Sun.
Chollet, E. E., Giacalone, J., Mewaldt, R. A.   +2 more
core   +1 more source