| タイトル | Simulation of auroral double layers |
| 著者（英） | Joyce, G.; Hubbard, R. F. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1979-08-01 |
| 言語 | eng |
| 内容記述 | Some basic properties of plasma double layers are deduced from a particle-in-cell computer simulation and related to parallel electric-field structures above the auroral regions. The simulation results on the processes leading to double-layer formation are examined, particularly in relation to the transient stage and double-layer structure and stability. It is concluded that: (1) a large potential difference applied to a finite-length plasma will be concentrated in a shocklike localized region instead of occurring over the entire length of the system; (2) the initial stage in double-layer formation is dominated by a large-potential pulse propagating in the direction of the induced electrostatic drift; (3) the entire potential is dropped over a specific scale length once the double layer has formed; and (4) this scale length is expected to be of the order of 1 km for a double layer above a discrete auroral arc with a potential of 10 kV and the electric-field vector parallel to the magnetic-field vector. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 79A48345 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/425727 |
