Key Research Areas
Gravitational Resonances & Wave Phenomena
The intricate patterns observed in Saturn's rings result from gravitational resonances with moons, both large and embedded. Density waves, bending waves, and spiral structures provide windows into the gravitational architecture of the Saturn system.
Our research examines how these waves propagate through the ring plane, dissipate energy, and contribute to ring evolution over time. Understanding wave dynamics is crucial for constraining ring mass and internal structure.
Ring Composition & Spectroscopy
Spectroscopic observations reveal that Saturn's rings are composed primarily of water ice, with varying amounts of contaminants and rocky material. The radial and azimuthal variations in composition provide clues to ring formation and evolution.
We analyze visible, near-infrared, and ultraviolet spectra to determine particle size distributions, surface properties, and the nature of non-ice components. These studies help constrain models of ring origin and dynamical processing.
Long-term Ring Evolution
Saturn's rings are not static; they evolve through a variety of processes including meteoroid bombardment, plasma interactions, and gravitational instabilities. Recent studies suggest the rings may be surprisingly young—perhaps only hundreds of millions of years old.
Our modeling work explores ring lifetimes, mass loss rates, and the ultimate fate of the ring system. Understanding ring evolution has implications for similar structures around other giant planets and exoplanets.