| タイトル | Plasma acceleration at the earth's magnetopause - Evidence for reconnection |
| 著者（英） | Asbridge, J. R.; Russel, C. T.; Elphic, R. C.; Papamastorakis, I.; Paschmann, G.; Haerendel, G.; Bame, S. J.; Gosling, J. T.; Sonnerup, B. U. OE.; Sckopke, N. |
| 著者所属（英） | Los Alamos Scientific Lab.|Max-Planck-Inst. fuer Physik und Astrophysik|Dartmouth Coll.|California Univ. |
| 発行日 | 1979-11-15 |
| 言語 | eng |
| 内容記述 | Observations of high-speed plasma at the magnetopause in agreement with theoretical predictions of magnetic field reconnection are reported. Plasma ion and electron distributions measured by the quadrispherical analyzers on board the ISEE 1 and 2 spacecraft were obtained during the outbound traversal of the subsolar magnetopause. Plasma flow speeds of up to 450 km/sec were observed in the magnetopause layer, in contrast to speeds of 50 to 100 km/sec in the adjacent magnetosheath. The observations agree with the predictions of the reconnection model of the dayside magnetopause, in which the magnetopause is described as a rotational discontinuity, or a large-amplitude Alfven wave. It is noted that the lack of observations of plasma acceleration in most other cases of favorable magnetic field orientation could be a product of the rarity of magnetic recombination, or its small scale and nonstationarity. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 80A13102 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/423988 |
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