Energetic particle acceleration at inner heliospheric shock waves

1999 ◽  
Author(s):  
Chin-Chun Wu ◽  
G. P. Zank
Keyword(s):  
Particle Acceleration ◽  
Shock Waves ◽  
Energetic Particle ◽  
Energetic Particle Acceleration ◽  
Heliospheric Shock

scholarly journals Fast magnetic reconnection and energetic particle acceleration

2011 ◽  
Vol 59 (7) ◽  
pp. 537-546 ◽  
Author(s):  
A. Lazarian ◽  
G. Kowal ◽  
E. Vishniac ◽  
E. de Gouveia Dal Pino
Keyword(s):  
Particle Acceleration ◽  
Magnetic Reconnection ◽  
Energetic Particle ◽  
Energetic Particle Acceleration

Energetic Particle Acceleration and Propagation in Strong CME-Less Flares

Solar Physics ◽  
2010 ◽  
Vol 263 (1-2) ◽  
pp. 185-208 ◽  
Author(s):  
K.-L. Klein ◽  
G. Trottet ◽  
A. Klassen
Keyword(s):  
Particle Acceleration ◽  
Energetic Particle ◽  
Energetic Particle Acceleration

scholarly journals Synthesis of 3-D Coronal-Solar Wind Energetic Particle Acceleration Modules

Space Weather ◽  
2014 ◽  
Vol 12 (6) ◽  
pp. 323-328 ◽  
Author(s):  
Nathan A. Schwadron ◽  
Matt Gorby ◽  
Tibor Török ◽  
Cooper Downs ◽  
Jon Linker ◽  
...  
Keyword(s):  
Solar Wind ◽  
Particle Acceleration ◽  
Energetic Particle ◽  
Energetic Particle Acceleration

scholarly journals Energetic Particle Acceleration in Compressible Magnetohydrodynamic Turbulence

2021 ◽  
Vol 922 (2) ◽  
pp. 209
Author(s):  
Jian-Fu Zhang ◽  
Fu-Yuan Xiang
Keyword(s):  
Particle Acceleration ◽  
Energetic Particle ◽  
Early Stage ◽  
High Energy ◽  
Compressible Turbulence ◽  
Mode Interaction ◽  
Acceleration Of Particles ◽  
Power Law Distribution ◽  
Mhd Turbulence ◽  
Energetic Particle Acceleration

Abstract Magnetohydrodynamic (MHD) turbulence is an important agent of energetic particle acceleration. Focusing on the compressible properties of magnetic turbulence, we adopt the test particle method to study the particle acceleration from Alfvén, slow, and fast modes in four turbulence regimes that may appear in a realistic astrophysical environment. Our studies show that (1) the second-order Fermi mechanism drives the acceleration of particles in the cascade processes of three modes by particle-turbulence interactions, regardless of whether the shock wave appears; (2) not only can the power spectra of maximum-acceleration rates reveal the inertial range of compressible turbulence, but also recover the scaling and energy ratio relationship between the modes; (3) fast mode dominates the acceleration of particles, especially in the case of super-Alfvénic and supersonic turbulence, slow mode dominates the acceleration for sub-Alfvénic turbulence in the very-high-energy range, and the acceleration of Alfvén mode is significant at the early stage of the acceleration; (4) particle acceleration from three modes results in a power-law distribution in the certain range of evolution time. From the perspective of particle-wave mode interaction, this paper promotes the understanding for both the properties of turbulence and the behavior of particle acceleration, which will help provide insight into astrophysical processes involved in MHD turbulence.

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