Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 332 (6030), 708-11

Saturn's Curiously Corrugated C Ring

Affiliations

Saturn's Curiously Corrugated C Ring

M M Hedman et al. Science.

Abstract

In August 2009 the Sun illuminated Saturn's rings from almost exactly edge-on, revealing a subtle corrugation that extends across the entire C ring. This corrugation's amplitude is 2 to 20 meters and its wavelength is 30 to 80 kilometers. Radial trends in the corrugation's wavelength indicate that this structure--like a similar corrugation previously identified in the D ring--results from differential nodal regression within a ring that became tilted relative to Saturn's equator plane in 1983. We suggest that this initial tilt arose because interplanetary debris struck the rings. The corrugation's radial extent implies that the impacting material was a dispersed cloud of debris instead of a single object, and the corrugation's amplitude indicates that the debris' total mass was ~10(11) to 10(13) kilograms.

Comment in

Similar articles

See all similar articles

Publication types

LinkOut - more resources

Feedback