Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 284 (5417), 1146-50

The Formation of Jupiter's Faint Rings

Affiliations

The Formation of Jupiter's Faint Rings

JA Burns et al. Science.

Abstract

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-Robertson drag. This mechanism may also explain the origin of Jupiter's main ring and suggests that faint rings may accompany all small inner satellites of the other jovian planets.

Similar articles

  • Saturn's Largest Ring
    AJ Verbiscer et al. Nature 461 (7267), 1098-100. PMID 19812546.
    Most planetary rings in the Solar System lie within a few radii of their host body, because at these distances gravitational accelerations inhibit satellite formation. Th …
  • The Sculpting of Jupiter's Gossamer Rings by Its Shadow
    DP Hamilton et al. Nature 453 (7191), 72-5. PMID 18451856.
    Dust near Jupiter is produced when interplanetary impactors collide energetically with small inner moons, and is organized into a main ring, an inner halo, and two fainte …
  • Io as a Source of the Jovian Dust Streams
    AL Graps et al. Nature 405 (6782), 48-50. PMID 10811212.
    Streams of dust emerging from the direction of Jupiter were discovered in 1992 during the flyby of the Ulysses spacecraft, but their precise origin within the jovian syst …
  • Detection of a Deep 3-microm Absorption Feature in the Spectrum of Amalthea (JV)
    N Takato et al. Science 306 (5705), 2224-7. PMID 15618511.
    Near-infrared spectra of Jupiter's small inner satellites Amalthea and Thebe are similar to those of D-type asteroids in the 0.8- to 2.5-micrometer wavelength range. A de …
  • Cassini Imaging of Jupiter's Atmosphere, Satellites, and Rings
    CC Porco et al. Science 299 (5612), 1541-7. PMID 12624258.
    The Cassini Imaging Science Subsystem acquired about 26,000 images of the Jupiter system as the spacecraft encountered the giant planet en route to Saturn. We report find …
See all similar articles

Cited by 3 PubMed Central articles

LinkOut - more resources

Feedback