@article{oai:nagoya.repo.nii.ac.jp:00012323,
 author = {Takahashi, Seiichi and Kawai, Hiromasa and Ohsawa, Yukiharu and Usami, Shunsuke and Chiu, Charles and Horton, Wendell},
 issue = {11},
 journal = {PHYSICS OF PLASMAS},
 month = {Dec},
 note = {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.},
 pages = {112308--112308},
 title = {The effect of parallel electric field in shock waves on the acceleration of relativistic ions, electrons, and positrons},
 volume = {16},
 year = {2009}
}