| タイトル | Structure of scintillations in Neptune's occultation shadow |
| 著者（英） | Brahic, Andre; Hubbard, W. B.; Sicardy, Bruno; Lellouch, Emmanuel; Vilas, Faith |
| 著者所属（英） | NASA Johnson Space Center|Arizona Univ.|Observatoire de Paris-Meudon |
| 発行日 | 1988-02-01 |
| 言語 | eng |
| 内容記述 | An exceptionally high-quality data set from a Neptune occultation is used here to derive a number of new results about the statistical properties of the fluctuations of the intensity distribution in various parts of Neptune's occultation shadow. An approximate numerical ray-tracing model which successfully accounts for many of the qualitative aspects of the observed intensity fluctuation distribution is introduced. Strong refractive scintillation is simulated by including the effects of 'turbulence' with projected atmospheric properties allowed to vary in both the direction perpendicular and parallel to the limb, and an explicit two-dimensional picture of a typical intensity distribution throughout an occulting planet's shadow is presented. The results confirm the existence of highly anisotropic turbulence. |
| NASA分類 | ASTRONOMY |
| レポートNO | 88A28752 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/372065 |
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