Results 71 to 80 of about 669 (180)
Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà +10 more
wiley +1 more source
Ultra‐Low‐L Sub‐MeV Electron Microbursts During the May 2024 Super Storm
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract During the May 2024 super storm, we identified sub‐second microburst‐type relativistic electron precipitation events at McIlwain's L∼2 $L\sim 2$ in low‐Earth orbit using the Gamma‐ray Burst Monitor (CGBM) onboard the CALorimetric Electron Telescope on the International Space Station.
Miki Kurihara +16 more
wiley +1 more source
Space WeatherIn this paper, we demonstrate the applicability of the data‐driven solar energetic particle (SEP) model, SOlar‐wind with FIeld‐lines and Energetic‐particles (SOFIE), to simulate the acceleration and transport processes of SEPs and make forecast of the ...
Lulu Zhao +10 more
doaj +1 more source
Pre‐Existing Plasmaspheric Density Structure
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract We perform a basic model experiment: we run two nearly identical plasmapause simulations, differing only by their initial conditions. The first run contains initial fine‐scale and mesoscale structure, and the second run is initialized with a featureless, circular plasmapause.
J. Goldstein, M. F. Thomsen
wiley +1 more source
The Astrophysical JournalObservational evidence is accumulating that turbulence in the solar wind is intermittent (non-Gaussian) because of the strong presence of a quasi-two-dimensional (quasi-2D), low-frequency turbulence component containing nonpropagating, closed, small ...
J. A. le Roux
doaj +1 more source
The Diffusion and Scattering of Accelerating Particles in Compressible MHD Turbulence
The Astrophysical JournalWe numerically study the diffusion and scattering of cosmic rays (CRs) together with their acceleration processes in the framework of the modern understanding of magnetohydrodynamic (MHD) turbulence. Based on the properties of compressible MHD turbulence
Na-Na Gao, Jian-Fu Zhang
doaj +1 more source
Compression Acceleration of Protons and Heavier Ions at the Heliospheric Current Sheet
The Astrophysical JournalRecent observations by the Parker Solar Probe (PSP) suggest that protons and heavier ions are accelerated to high energies by magnetic reconnection at the heliospheric current sheet (HCS).
Giulia Murtas, Xiaocan Li, Fan Guo
doaj +1 more source
Electron Acceleration at Shock Ripples: Role of Pitch-angle Diffusion
The Astrophysical JournalSuprathermal electrons are routinely observed in interplanetary space. At higher energies, there are in-situ evidences that shocks, both interplanetary shocks, often driven by fast coronal mass ejections, and terrestrial bow shocks, can accelerate ...
Y. D. Xu, G. Li, S. Yao
doaj +1 more source
Modeling Shock‐accelerated Solar Energetic Particles Coupled to Interplanetary Alfven Waves
The Astrophysical Journal, 2003 We present an idealized model simulating the coupled evolution of the distributions of multispecies shock-accelerated energetic ions and interplanetary Alfven waves in gradual solar energetic particle (SEP) events. Particle pitch-angle diffusion coefficients are expressed in terms of wave intensities, and wave growth rates in terms of momentum ...
C. K. Ng, D. V. Reames, A. J. Tylka
openaire +1 more source
Electron Acceleration in Magnetic Reconnection-driven Turbulence in the Earth’s Magnetotail
The Astrophysical JournalThe Magnetospheric Multiscale mission has identified regions of magnetic reconnection surrounded by strong turbulence associated with particle acceleration in the Earth’s magnetotail.
R. E. Ergun +9 more
doaj +1 more source