CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishThe stability of the present configuration of Uranus' rings is discussed, and a possible global model for their formation and evolution is proposed. A ring mass assuring the stability of the epsilon-ring against differential precession is derived and shown to be consistent with that obtained by Goldreich and Tremaine (1979). The long-term stability of the rings against collisional broadening is discussed, and it is shown that the assumption of confinement due only to self-gravitation requires an unacceptably high ring mass, leading to the suggestion that some other confining mechanism is at work. A possible scenario for the origin of the ring system as a result of the tidal break-up of a satellite within the Roche limit is then described.
| Titolo: | Asteroidal binary systems: Detection and formation |
| Autori interni: | |
| Anno del prodotto: | 1980 |
| Rivista: | |
| Abstract: | The stability of the present configuration of Uranus' rings is discussed, and a possible global model for their formation and evolution is proposed. A ring mass assuring the stability of the epsilon-ring against differential precession is derived and shown to be consistent with that obtained by Goldreich and Tremaine (1979). The long-term stability of the rings against collisional broadening is discussed, and it is shown that the assumption of confinement due only to self-gravitation requires an unacceptably high ring mass, leading to the suggestion that some other confining mechanism is at work. A possible scenario for the origin of the ring system as a result of the tidal break-up of a satellite within the Roche limit is then described. |
| Handle: | http://hdl.handle.net/11568/231341 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
Copyright © 2020