Electron surfing acceleration by electrostatic waves in current sheet |
| |
| Authors: | De-Yu Wang Quan-Ming Lu |
| |
| Institution: | (1) Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210008, China;(2) School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China |
| |
| Abstract: | The electron surfing acceleration in the current sheet with perpendicular propagating electrostatic waves is studied using
analytical theories and test particle simulations. The trapped electron moving with the phase velocity v
p
of wave may be accelerated effectively in the outflow direction by
force until the electron is de-trapped from the wave potential. A criterion K>0 for the electron surfing acceleration is obtained. The electron will escape from the boundary of current sheet quickly,
if this criterion does not hold. The maximum velocity of surfing acceleration is about the same as the electric drift velocity.
Superposed longitudinal magnetic field along the wave propagation is favorable for the electron surfing acceleration in the
current sheet.
|
| |
| Keywords: | Particle acceleration Electrostatic wave Current sheet |
| 本文献已被 SpringerLink 等数据库收录！ |
|
