NASA NTRS · 19860036840
Shepherding model for Neptune's arc ring
Abstract
A model to explain the confinement of the recently discovered incomplete arc ring around Neptune is developed. The ring may be azimuthally confined near a triangular (Trojan) point of an undiscovered satellite of Neptune. Radial diffusion of the ring particles can be prevented by shepherding torques of another moon. Two satellites with diameters of 100-200 km would be sufficient to confine the ring; such moons would be too small to have been photographed from earth.
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Lissauer, J. J.. 1985-12-12. Shepherding model for Neptune's arc ring. https://ntrs.nasa.gov/citations/19860036840
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