Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8136279 | Icarus | 2015 | 21 Pages |
Abstract
While the integrated normal flux from the B ring varies linearly with sinBâ² as expected, an important finding is that it is dominated for by isotropic emission both on the lit and unlit sides. On the lit side there is an additional emission from a low-phase hot spot with an angular width of 50° that accounts for approximately 2-10% of the total emission. Accounting for wake orientation affects only the inner B Ring, decreasing the absorbed incident radiation by 5-10% there. The numerical model uses only a scalar albedo to parameterize the absorption. It requires a low albedo of Aâ¼0.3 to be brought into agreement with ring emission, which is expected if there is enhanced radiance absorption over the single scattered estimates, due to multiple scattering within the ring.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
Stuart Pilorz, Nicolas Altobelli, Josh Colwell, Mark Showalter,