Long time behavior of relativistic ions incessantly accelerated by an oblique shock wave

• DOI: 10.1063/1.1464147
• Publication Date: 2002-07-26T13:27:17Z
• Authors: Shunsuke Usami; Yukiharu Ohsawa
• Keywords: Momentum (technical analysis); Test particle; Relativistic speed

Incessant acceleration of nonthermal fast ions by an oblique magnetosonic shock wave is studied with hybrid simulations. First, magnetic and electric field profiles are obtained means a one-dimensional, relativistic, electromagnetic, particle simulation. Test trajectories then calculated using these profiles. Some trapped the owing to relativistic effect that velocity limited speed light while momentum can grow indefinitely. In simulations, some found suffer energy jumps several tens times; as result, their final maximum Lorentz factors far exceeded 100.