Corrigendum to “Saturn’s F Ring core: Calm in the midst of chaos” [Icarus 232 (April) (2014) 157-175]

Cuzzi et al. (2014) described the dynamical properties of Saturn’s F Ring region numerically and analytically. They found that most of the region was dynamically chaotic due to repeated encounters with the very eccentric “shepherding” moons Prometheus and Pandora, making the long-term stability of the F ring hard to understand. However, they did discover relatively stable clusters of particles at a set of narrow, regularly spaced radial locations near to first-order Lindblad resonances. One of these is close to the observed semimajor axis of Saturn’s F Ring based on stellar occultation and imaging observations. Being unable at the time to distinguish Corotational and Lindblad resonances (CRs and LRs), they focused their discussion on what they thought was a new kind of dynamical cancellation they dubbed “antiresonances” lying very close to the numerically detected stable zones, that might be preventing the dynamical chaos from rising near these narrow radial zones. Here we report an error in their analytical development of the locations of the “antiresonances” that renders that hypothesis irrelevant, and describe the source of the error. We also present updated long integrations that clarify the longevity of particles in “stable” locations, noting some labeling errors in our previous plots. Recently Cuzzi et al. (2023) have shown that the F ring is anchored by a series of discontinuous arcs of relatively large particles dominating its mass, that orbit in one specific CR with Prometheus. They describe why the CR is at least partly responsible for the stability of the F Ring, but it remains a puzzle why it is the only such CR stably populated in such a way, especially because it actually seems to be less stable than several near neighbors.