The formation of Jupiter's faint rings

  title={The formation of Jupiter's faint rings},
  author={Burns and Showalter and Hamilton and Nicholson and I dePater and Ockert-Bell and Thomas},
  volume={284 5417},
Observations by the Galileo spacecraft and the Keck telescope showed that Jupiter's outermost (gossamer) ring is actually two rings circumscribed by the orbits of the small satellites Amalthea and Thebe. The gossamer rings' unique morphology-especially the rectangular end profiles at the satellite's orbit and the enhanced intensities along the top and bottom edges of the rings-can be explained by collisional ejecta lost from the inclined satellites. The ejecta evolves inward under Poynting… Expand
Plasma conditions and the structure of the Jovian ring
[1] We explore the dynamics of small charged dust particles in Jupiter's innermost magnetosphere and show that the systematic charge variation of the grains results in surprisingly short lifetimes.Expand
The sculpting of Jupiter’s gossamer rings by its shadow
Detailed modelling is presented that shows that the passage of ring particles through Jupiter’s shadow creates the Thebe extension and fully accounts for these Galileo results on dust impacts detected during the Galileo spacecraft's traversal of the outer ring region. Expand
The Rings of Jupiter as Seen by the Electron and Proton Radiation Belt Model Salammbô
A modeling of the effect of the rings of Jupiter on trapped >3‐MeV electrons and protons is proposed. The effect is then added to the physical model Salammbo and discussed against in situExpand
Small-Scale Structure in Saturn's Rings
The rings of Saturn are the largest and most complex in the Solar System. Decades of observation from ground- and space-based observatories and spacecraft missions have revealed the broad structureExpand
The Structure of Jupiter's Ring System as Revealed by the Galileo Imaging Experiment
The jovian ring system was observed during four orbits of Galileo's nominal mission, when 25 clear-filter images of the rings were taken at spatial resolutions of 23 to 134 km/pixel; the ringExpand
Keck near-infrared observations of Saturn's E and G rings during Earth's ring plane crossing in August 1995
Abstract We present near-infrared (1.24–2.26 μm) images of Saturn's E and G rings which were taken with the W.M. Keck telescope in 1995 August 9–11, during the period that Earth crossed Saturn's ringExpand
The vertical thickness of Jupiter's Europa gas torus from charged particle measurements
Measurements and modeling suggest the presence of a neutral gas torus collocated with the orbit of Jupiter's moon Europa. Here we use data from the CMS instrument that is part of the EnergeticExpand
Dusty Rings and Circumplanetary Dust: Observations and Simple Physics
Each giant planet is encircled by planetary rings, usually composed of particles centimeters to meters in radius, but each system also contains regions where much smaller dust grains predominate.Expand
A tenuous dust ring of Jupiter formed by escaping ejecta from the Galilean satellites
[1] This paper focuses on the dust environment between the orbits of the Galilean moons of Jupiter. Recent discovery of dust clouds around the Galilean satellites formed by impact ejecta fromExpand
Saturn's largest ring
It is reported that Saturn has an enormous ring associated with its outer moon Phoebe, extending from at least 128RS to 207RS (Saturn’s radius RS is 60,330 km); Dynamical considerations argue that these ring particles span the Saturnian system from the main rings to the edges of interplanetary space. Expand


Discovery of Jupiter's ‘gossamer’ ring
An additional ring is discovered, which is far fainter than either of the (already faint) components previously identified, extending to a radius of 210,000 km. Expand
The Structure of Jupiter's Ring System as Revealed by the Galileo Imaging Experiment
The jovian ring system was observed during four orbits of Galileo's nominal mission, when 25 clear-filter images of the rings were taken at spatial resolutions of 23 to 134 km/pixel; the ringExpand
Orbital evolution of circumplanetary dust by resonant charge variations
Vast ethereal rings composed of micrometre-sized particles have been detected about the three giant planets so far visited by Voyager. Jupiter's diffuse halo, main ring1 and gossamer ring2 areExpand
Jupiter's ring system - New results on structure and particle properties
Abstract A reexamination of the Voyager images has yielded a refined understanding of Jupiter's diffuse ring system. The system is composed of a relatively bright narrow ring and inner toroidal halo,Expand
Origins of the rings of Uranus and Neptune: 2. Initial conditions and ring moon populations
The smallest moons of the Jovian planets are unlikely to survive intact the flux of cometary impactors in the outer solar system for billions of years. In paper 1 (Colwell and Esposito, 1992) weExpand
Gyrophase drifts and the orbital evolution of dust at Jupiter's gossamer ring
Abstract Jupiter's “gossamer” ring, which apparently consists largely of fine dust grains, and extends outward from the main ring to the vicinity of Thebe at ∼3.11 RJ, has a significant peak at theExpand
Origin of Saturn's E Ring: Self-Sustained, Naturally
This model naturally selects Enceladus as the primary source of ring material and may also provide mechanisms that explain the generation of the unusual amount of submicrometer dust in the neighboring F and G rings, the excess of OH molecules observed within the E ring, and the orbital brightness variations of nearby satellites. Expand
Physical processes in Jupiter's ring - Clues to its origin by Jove
Abstract The particles making up the Jovian ring may be debris which has been excavated by micrometeoroids from the surfaces of many unseen ( R ≲ 1 km) parent bodies (or “mooms” as we willExpand
Lorentz resonances and the structure of the Jovian ring
Charged dust orbiting through spatially periodic planetary magnetic fields will experience time-variable electromagnetic forces. When the forcing frequencies are nearly commensurate with theExpand
Compositional Evolution of Saturn's Rings Due to Meteoroid Bombardment
In this paper we address the question of compositional evolution in planetary ring systems subsequent to meteoroid bombardment. The huge surface area to mass ratio of planetary rings ensures thatExpand