| タイトル | Io's sodium cloud - Explanation of the east-west asymmetries. II |
| 著者（英） | Smyth, W. H. |
| 著者所属（英） | Atmospheric and Environmental Research, Inc. |
| 発行日 | 1983-01-15 |
| 言語 | eng |
| 内容記述 | A three- dimensional model for Io's sodium cloud incorporating the full effects of solar radiation acceleration associated with solar resonance scattering of atoms in the D-1 and D-2 lines is developed and applied to interpret two different but related east-west asymmetries exhibited in the cloud, using data obtained from ground-based telescopes. The physical changes produced in the cloud by the solar radiation acceleration as a function of satellite phase angle are documented, and how these changes explain the asymmetries is clarified. The model results suggest an east-west phase lag asymmetry of 10-15 degrees; results for the observed east-west intensity asymmetry of Bergstrahl (1977) are also presented. The east-west shape and intensity asymmetries are found to follow directly from the lack of circular symmetry about Jupiter of the forces acting on the cloud atoms. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 83A19517 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/405826 |
|
