2024-03-28T15:45:21Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00012323
2023-01-16T04:59:25Z
336:695:696
The effect of parallel electric field in shock waves on the acceleration of relativistic ions, electrons, and positrons
Takahashi, Seiichi
Kawai, Hiromasa
Ohsawa, Yukiharu
Usami, Shunsuke
Chiu, Charles
Horton, Wendell
open access
Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The effect of an electric field E∥ parallel to the magnetic field B on particle acceleration in shock waves is studied. With test particle calculations, for which the electromagnetic fields of shock waves are obtained from one-dimensional, fully kinetic, electromagnetic, particle simulations, the motions of relativistic ions, electrons, and positrons are analyzed. In these simulations, the shock speed vsh is taken to be close to c cos θ, where θ is the angle between the external magnetic field and wave normal, and thus strong particle acceleration takes place. Test particle motions calculated in two different methods are compared: In the first method the total electric field E is used in the equation of motion, while in the second method E∥ is omitted. The comparison confirms that in the acceleration of relativistic ions E∥ is unimportant for high-energy particles. For the acceleration of electrons and positrons, however, E∥ is essential.
American Institute of Physics.
2009-12
eng
journal article
VoR
http://hdl.handle.net/2237/14204
https://nagoya.repo.nii.ac.jp/records/12323
https://doi.org/10.1063/1.3264739
1070-664X
PHYSICS OF PLASMAS
16
11
112308
112308
https://nagoya.repo.nii.ac.jp/record/12323/files/physics_of_plasmas_16_11_112308.pdf
application/pdf
2.3 MB
2018-02-20