Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992plr....12b...4p&link_type=abstract
Planetary Report (ISSN 0736-3680), vol. 12, Mar.-Apr. 1992, p. 4-9.
Astronomy and Astrophysics
Astrophysics
Neptune (Planet), Planetary Rings, Planetology, Voyager 2 Spacecraft, Astronomical Photography, Gravitational Effects, Orbital Resonances (Celestial Mechanics), Planetary Evolution, Neptune, Rings, History, Earth-Based Observations, Occultations, Dust, Popular, Ring Arcs, Hypotheses, Satellites, Resonance, Voyager 2 Mission, Spacecraft Observations, Description, Adams Ring, Leverrier Ring, Origin, Galle Ring, 1989N4R, 1989N5R, Optical Properties, Liberte, Fraternite, Egalite, Galatea, Formation, Gravity Eff
Scientific paper
An overview of investigations of Neptune's rings is presented in which the recent data and findings from the Voyager 2 mission are emphasized. The evolving interpretation of the ring arcs is outlined, and the concept of resonance in the rings is described. Illustrations of the rings, the moons of Neptune, and the interactions between the two are given, and attention is given to the development of the rings by means of the catastrophic breakup of a planetary satellite. The very large crater on the Mimas satellite is given as evidence of potentially catastrophic impacts, and the implications of further breakup are discussed. A total of four rings are identified which include 3 pronounced rings and one ring that is more diaphanous. Clumps in the arcs are discussed in terms of the possible existence of large objects within the rings, and interparticle collisions are theorized to account for the large arc dust content.
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