| タイトル | Triton's streaks as windblown dust |
| 著者（英） | Sagan, Carl; Chyba, Christopher |
| 著者所属（英） | Cornell Univ. |
| 発行日 | 1990-08-09 |
| 言語 | eng |
| 内容記述 | Explanations for the surface streaks observed by Voyager 2 on Triton's southern hemisphere are discussed. It is shown that, despite Triton's tenuous atmosphere, low-cohesion dust trains with diameters of about 5 micron or less may be carried into suspension by aeolian surface shear stress, given expected geostrophic wind speeds of about 10 m/s. For geyser-like erupting dust plumes, it is shown that dust-settling time scales and expected wind velocities can produce streaks with length scales in good agreement with those of the streaks. Thus, both geyserlike eruptions or direct lifting by surface winds appear to be viable mechanisms for the origin of the streaks. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 90A44719 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/354685 |
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