Results 11 to 20 of about 1,276 (215)
Particle Acceleration at Interplanetary Shocks [PDF]
Space Science Reviews, 2007 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.
G P Zank +2 more
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Efficiency of particle acceleration at interplanetary shocks: Statistical study of STEREO observations [PDF]
Astronomy and Astrophysics, 2016 Context. Among others, shocks are known to be accelerators of energetic charged particles. However, many questions regarding the acceleration efficiency and the required conditions are not fully understood. In particular, the acceleration of electrons by shocks is often questioned. Aims.
N Dresing, A Klassen, B Heber
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Energetic seed particles in self-consistent particle acceleration modeling at interplanetary shock waves [PDF]
Astronomy and AstrophysicsAims. The study investigates the relevance of the seed particle population in the results of particle acceleration in interplanetary shock waves, when wave–particle interactions are treated self-consistently. Methods. We employed the SOLar Particle Acceleration in Coronal Shocks (SOLPACS) model, which is a proton acceleration simulation in shocks with ...
L Vuorinen, A Afanasiev, D Trotta
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Quiet time particle acceleration in interplanetary space [PDF]
Astronomy & Astrophysics, 2005 9 pages, 9 figures; accepted for publication in Astronomy and ...
LEPRETI, Fabio +3 more
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Particle Acceleration at Interplanetary Shocks [PDF]
AIP Conference Proceedings, 2008 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 +2 more
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Numerical Simulations of Particle Acceleration at Interplanetary Quasi-perpendicular Shocks [PDF]
Astrophysical Journal, 2017 Abstract Using test particle simulations we study particle acceleration at highly perpendicular ( ) shocks under conditions of modeling magnetic turbulence. We adopt a backward-in-time method to solve the Newton–Lorentz equation using the observed shock parameters for quasi ...
G Qin
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On the acceleration of energetic particles in the interplanetary medium [PDF]
Journal of Geophysical Research, 1976 Fermi scattering and transit time damping are two possible mechanisms for accelerating low energy protons (approximately 1 Mev) in co-rotating particle streams. Solutions to the equations which govern particle behavior in such streams are presented. It was found that acceleration by Fermi scattering requires a scattering mean-free path more than an ...
Fisk, L. A.
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Astronomy & AstrophysicsContext. Energetic particles are ubiquitous in space and astrophysical plasmas, and interplanetary shocks are widely regarded as one of the main particle accelerators in the heliosphere. Indeed, in situ measurements typically show that energetic particle
Prete G., Zimbardo G., Perri S.
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Modeling Particle Acceleration and Release from Solar Eruptions
The Astrophysical JournalDetermining the relative contribution of solar flares versus coronal mass ejections in large solar energetic particle (SEP) events is a long-standing problem.
Xiaocan Li +5 more
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Energetic particle investigation using the ERNE instrument [PDF]
Annales Geophysicae, 1996 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
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