@article{oai:nagoya.repo.nii.ac.jp:00012322,
author = {Usami, Shunsuke and Horiuchi, Ritoku and Ohsawa, Yukiharu},
issue = {12},
journal = {PHYSICS OF PLASMAS},
month = {Dec},
note = {The motion of ultrarelativistic ions in an oblique magnetosonic shock wave is studied analytically and numerically. The zeroth-order theory predicts that an oblique shock wave can accelerate ions in the direction nearly parallel to the magnetic field if the shock speed is vsh ∼ c cos θ, where θ is the angle between the wave normal and the magnetic field, while the perturbation is a one-dimensional oscillation nearly perpendicular to the zeroth-order motion. The perturbation frequency ω is of the order of Ωi0γ^−1/2, where γ is the Lorentz factor of the zeroth-order velocity. These theoretical predictions are examined with test particle simulations, in which the test particle orbits are calculated with use of the electromagnetic fields of a shock wave obtained from an electromagnetic particle simulation. The zeroth-order and perturbed motions in the simulations are explained by the theory.},
pages = {122104--122104},
title = {Numerical studies on ultrarelativistic ion motions in an oblique magnetosonic shock wave},
volume = {16},
year = {2009}
}