| タイトル | Dust density and mass distribution near comet Halley from Giotto observations |
| 著者（英） | Hughes, D. W.; Mcdonnell, J. A. M.; Bussoletti, E.; Sekanina, Z.; Clark, D. H.; Gruen, E.; Alexander, W. M.; Hanner, M. S.; Grard, J. L.; Burton, W. M. |
| 著者所属（英） | Sheffield Univ.|Max-Planck-Inst. fuer Kernphysik|Baylor Univ.|Kent Univ.|Science Research Council|Lecce Univ.|Jet Propulsion Lab., California Inst. of Tech.|Science Research Council |
| 発行日 | 1986-05-15 |
| 言語 | eng |
| 内容記述 | The density and the mass spectrum of the dust near comet Halley have been measured by the Giotto space probe's dust impact detection system. The dust spectrum obtained at 291,000 km from the comet nucleus show depletion in small and intermediate masses; at about 600 km from the nucleus, however, the dust activity rises and the spectrum is dominated by larger masses. Most of the mass striking Giotto is noted to reside in the few large particles penetrating the dust shield. Momentum balances and energy considerations applied to an observed deceleration suggest that a large mass of the spacecraft was detached by an impact. |
| NASA分類 | SPACECRAFT INSTRUMENTATION |
| レポートNO | 86A40908 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/384075 |
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