Existence of moonlets in Saturn's rings inferred from the optical depth profile
β Scribed by Spahn, Frank; Sponholz, Hanno
- Book ID
- 109759235
- Publisher
- Nature Publishing Group
- Year
- 1989
- Tongue
- English
- Weight
- 227 KB
- Volume
- 339
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/339607a0
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π SIMILAR VOLUMES
We present optical depth profiles for Saturn's rings at wavelengths of 0.9, 2.1, 3.3, and 3.9 Β΅m, obtained from the occultation of the star 28 Sgr on 3 July 1989 when the rings were near their maximum opening angle. The radial resolution of the data is βΌ18 km, as set by the angular diameter of the s
We both test and offer an alternative to a meteoroid bombardment model (M. R. Showalter 1998, Science 282, 1099-1102) and suggest that anomalous localized brightenings in the F ring observed by Voyager result from disruptive collisions involving poorly consolidated moonlets, or "rubble piles." This