Analyzing Blériot's propeller gaps in Cassini NAC images
Abstract
We analyze images of the sunlit side of Saturn's outer A ring which show the propeller Blériot with clearly visible gaps. By fitting a Gaussian to radial brightness profiles at different azimuthal locations, we obtain the evolution of gap minimum and gap width downstream of the moonlet. We estimate the Hill radius of the propeller-moonlet from the radial separation of the gaps and we estimate the ring-viscosity from the azimuthal evolution of the gap minimum.
- Publication:
-
European Planetary Science Congress
- Pub Date:
- September 2017
- Bibcode:
- 2017EPSC...11..677H