| タイトル | CDAW 8 observations of plasmoid signatures in the geomagnetic tail - An assessment |
| 著者（英） | Smith, E. J.; Elphic, R. C.; Fairfield, D. H.; Hughes, W. J.; Slavin, J. A.; Frank, L. A.; Galvin, A. B.; Baker, D. N.; Manka, R. H.; Craven, J. D. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.|National Academy of Sciences - National Research Council|California Univ.|Iowa Univ.|Maryland Univ.|NASA Goddard Space Flight Center|Boston Univ. |
| 発行日 | 1989-11-01 |
| 言語 | eng |
| 内容記述 | Magnetotail observations from the ISEE 3 distant (1983) tail mission taken during the Coordinated Data Analysis Workshop 8 (CDAW 8) A and G events are investigated. The ISEE 3 magnetic field, plasma, and energetic particle measurements taken in these two plasmoids have been analyzed and compared with various equilibrium structures and propagating waves/tail oscillation modes. Results indicate general agreement with either the closed-loop (Hones, 1977) or very small pitch angle flux rope (Hughes and Sibeck, 1987; Birn et al., 1989) models of plasmoid structure and poorer agreement with other hypotheses. Calculations based upon typical plasmoid and tail parameters are presented, indicating that the J and B force associated with the disconnected lobe field lines may be sufficient to accelerate plasmoids up to the speeds observed by ISEE 3. Overall, the energy expended in accelerating the plasmoids down the tail appears comparable to that dissipated in the inner magnetosphere and ionosphere. The study produces strong evidence in favor of the plasmoid model of substorm tail dynamics. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 90A16492 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/359460 |
|
