| タイトル | Dust counter and mass analyser (DUCMA) measurements of comet Halley's coma from Vega spacecraft |
| 著者（英） | Ksanfomaliti, L. V.; Simpson, J. A.; Sagdeev, R. Z.; Tuzzolino, A. J.; Perkins, M. A. |
| 著者所属（英） | Chicago Univ.|Institute of Space Research |
| 発行日 | 1986-05-15 |
| 言語 | eng |
| 内容記述 | Measurements of dust particles in comet Halley's coma from Vega spacecraft made with instruments using a new principle of dust detection and having a high time resolution over a large range of dust fluxes and masses are reported. The dust coma, whether quiescent (as seen by Vega 2) or containing a major jet structure, (as seen by Vega 1) displays large, short-term variations throughout which are at times quasi-periodic. The integral mass spectra increase in intensity to the lowest masses measured, and the flux levels lie approximately in the ranges estimated previously from ground-based observations. The coma is highly dynamical on all spatial and temporal scales, suggesting a complex structure of localized regions of dust emission from the nucleus. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 86A40888 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/384083 |
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