Results 81 to 90 of about 13,868 (214)

Electron Acceleration in Time-dependent Kinematic Three-dimensional Magnetic Reconnection: The Role of Induced Electric Fields and Magnetic Topology

The Astrophysical Journal Supplement Series
Particle acceleration during magnetic reconnection is a key process in space physics and astrophysics, yet the direct role of induced electric fields in fully time-dependent three-dimensional (3D) topologies remains poorly quantified.
Y. L. Chen, Y. Wang, F. S. Wei, X. S. Feng, Z. L. Zhou, B. Y. Wang, P. B. Zuo, X. J. Song, X. J. Xu   +8 more
doaj   +1 more source

On the relationship between collisionless shock structure and energetic particle acceleration [PDF]

Recent experimental research on bow shock structure and theoretical studies of quasi-parallel shock structure and shock acceleration of energetic particles were reviewed, to point out the relationship between structure and particle acceleration.
Kennel, C. F.
core   +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

Solar and interplanetary particles re-accelerated at the solar wind termination shock [PDF]

Advances in Space Research, 1999
We consider the acceleration of solar/interplanetary particles at the solar wind termination shock, predict the expected composition and energy spectra, and discuss possible observable ...
openaire   +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

An Overview of Solar Orbiter Observations of Interplanetary Shocks in Solar Cycle 25

The Astrophysical Journal Supplement Series
Interplanetary (IP) shocks are fundamental constituents of the heliosphere, where they form as a result of solar activity. We use previously unavailable measurements of IP shocks in the inner heliosphere provided by Solar Orbiter, and present a survey of
Domenico Trotta, Andrew Dimmock, Heli Hietala, Xochitl Blanco-Cano, Timothy S. Horbury, Rami Vainio, Nina Dresing, Immanuel Christopher Jebaraj, Francisco Espinosa Lara, Raúl Gómez-Herrero, Javier Rodriguez-Pacheco, Yulia Kartavykh, David Lario, Jan Gieseler, Miho Janvier, Milan Maksimovic, Nasrin Talebpour Sheshvan, Christopher J. Owen, Emilia K. J. Kilpua, Robert F. Wimmer-Schweingruber   +19 more
doaj   +1 more source

Magnetopause Boundary Layers in Low Mach CME‐Driven Storm Environment

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Magnetopause boundary layers (BLs) play an important role mediating plasma and energy exchange between the solar wind/magnetosheath and Earth's magnetosphere. Energy exchange across the magnetopause is enhanced during storms, yet little work has been done investigating BLs during storms.
Rachel C. Rice, Li‐Jen Chen, Tai Phan, Brandon L. Burkholder, Stephen A. Fuselier, Roman Gomez, Cristian P. Ferradas, Jason M. H. Beedle, Megha Pandya   +8 more
wiley   +1 more source

Electromagnetic and corpuscular emission from the solar flare of 1991 June 15: Continuous acceleraton of relativistic particles [PDF]

, 1993
Data on X-,γ-ray, optical and radio emission from the 1991 June 15 solar flare are considered. We have calculated the spectrum of protons that producesγ-rays during the gradual phase of the flare.
Armstrong, T. P., Chuikin, E. I., Kocharov, G. E., Kocharov, L. G., Kovaltsov, G. A., Melnikov, V. F., Podstrigach, T. S., Shea, M. A., Smart, D. F., Usoskin, I. G., Zirin, H.   +10 more
core   +1 more source

The Effect of Large-scale Magnetic Fluctuations on Energetic Particle Profiles across Interplanetary Shocks

The Astrophysical Journal
In situ observations of energetic particles associated with interplanetary (IP) shocks, known as energetic storm particle (ESP) events, often show time-intensity profiles quite different from predictions of classical diffusive shock acceleration theory ...
Ming-Yuan Lo, Fan Guo, Joe Giacalone, Lulu Zhao, David Lario, Gergely Koban, George C. Ho, Christina M. S. Cohen   +7 more
doaj   +1 more source

The effect of interplanetary acceleration on the propagation of energetic solar particles in prompt events

Astrophysics and Space Science, 1980
Crank-Nicholson solutions are obtained to the time-dependent Fokker-Planck equation for propagation in the interplanetary medium following a point in time injection of energetic solar particles and including the acceleration terms $$\frac{\partial }{{\partial T}}\left( {D_{TT} \frac{{\partial U}}{{\partial T}}} \right) - \frac{\partial }{{\partial T}
Cecchini, S., Moussas, X., Quenby, J.J.
openaire   +2 more sources