- Status Report
- January 31, 2024
Evidence That A Novel Type Of Satellite Wake Might Exist In Saturn's E Ring
Saturn’s E ring consists of micron-sized particles launched from Enceladus by that moon’s geological activity. A variety of small-scale structures in the E-ring’s brightness have been attributed to tendrils of material recently launched from Enceladus.
However, one of these features occurs at a location where Enceladus’ gravitational perturbations should concentrate background E-ring particles into structures known as satellite wakes. While satellite wakes have been observed previously in ring material drifting past other moons, these E-ring structures would be the first examples of wakes involving particles following horseshoe orbits near Enceladus’ orbit.
The predicted intensity of these wake signatures are particularly sensitive to the fraction E-ring particles’ on orbits with low eccentricities and semi-major axes just outside of Enceladus’ orbit, and so detailed analyses of these and other small-scale E-ring features should place strong constraints on the orbital properties and evolution of E-ring particles.
M.M. Hedman, M. Young
Comments: 18 pages, 10 figures, accepted for publication in PSJ
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:2105.05294 [astro-ph.EP] (or arXiv:2105.05294v1 [astro-ph.EP] for this version)
From: Matthew Hedman
[v1] Tue, 11 May 2021 18:44:03 UTC (10,913 KB)