Results 1 to 10 of about 612 (171)
Particle Acceleration at Interplanetary Shocks [PDF]
This paper briefly reviews proton acceleration at interplanetary shocks. This is key to describing the acceleration of heavy ions at interplanetary shocks because wave excitation—and hence particle scattering—at oblique shocks is controlled by the protons and not the heavy ions.
Zank, G. P. +2 more
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Particle Acceleration at Interplanetary Shocks [PDF]
The acceleration of interstellar pick-up ions as well as solar wind species has been observed at a multitude of interplanetary (IP) shocks by different spacecraft. This paper expands upon previous work modeling the phase space distributions of accelerated ions associated with the shock event encountered on day 292 of 1991 by the Ulysses mission at 4.5 ...
Matthew G. Baring +7 more
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Energetic particle investigation using the ERNE instrument [PDF]
During solar flares and coronal mass ejections, nuclei and electrons accelerated to high energies are injected into interplanetary space. These accelerated particles can be detected at the SOHO satellite by the ERNE instrument.
J. Torsti +11 more
doaj +1 more source
Betatron Acceleration of Suprathermal Electrons within a Small-scale Flux Rope in the Solar Wind
A growing body of evidence from observations, theories, and simulations indicates that particles can be effectively accelerated in solar wind regions filled with dynamic small-scale flux ropes (FRs).
Weiduo Meng +9 more
doaj +1 more source
Quiet time particle acceleration in interplanetary space [PDF]
9 pages, 9 figures; accepted for publication in Astronomy and ...
LEPRETI, Fabio +3 more
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Acceleration of Solar Wind Particles by Traveling Interplanetary Shocks [PDF]
Abstract The acceleration of thermal solar wind (SW) protons at spherical interplanetary shocks driven by coronal mass ejections is investigated. The SW velocity distribution is represented using κ-functions, which are transformed in response to simulated shock transitions in the fixed-frame flow speed, plasma number density, and ...
P. L. Prinsloo +2 more
openaire +3 more sources
We analyze periods with elevated >40 MeV proton intensities observed near Earth over a time span of 43 yr (1973–2016) that coincide with the passage of interplanetary (IP) shocks.
D. Lario +3 more
doaj +1 more source
Acceleration of Solar Energetic Particles by the Shock of Interplanetary Coronal Mass Ejection [PDF]
Abstract Interplanetary coronal mass ejection (ICME) shocks are known to accelerate particles and contribute significantly to solar energetic particle events. We have performed magnetohydrodynamic-particle in cell simulations of ICME shocks to understand the acceleration mechanism. These shocks vary in Alfvénic Mach numbers as well as in
Shanwlee Sow Mondal +3 more
openaire +2 more sources
In an effort to develop computational tools for predicting radiation hazards from solar energetic particles (SEPs), we have created a data-driven physics-based particle transport model to calculate the injection, acceleration, and propagation of SEPs ...
Ming Zhang +7 more
doaj +1 more source
Long-duration high-energy proton events observed by GOES in October 1989 [PDF]
We consider the prolonged injection of the high-energy (>10 MeV) protons during the three successive events observed by GOES in October 1989. We apply a solar-rotation-stereoscopy approach to study the injection of the accelerated particles from ...
A. Anttila +3 more
doaj +1 more source

