The Formation of Jupiter's Faint Rings-Reference-Cited by-同舟云学术

The Formation of Jupiter's Faint Rings

Published:1999-05-14 Issue:5417 Volume:284 Page:1146-1150
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Burns Joseph A.¹,Showalter Mark R.²,Hamilton Douglas P.³,Nicholson Philip D.¹,Pater Imke de⁴,Ockert-Bell Maureen E.¹,Thomas Peter C.¹

Affiliation:

1. Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA.

2. Space, Telecommunications and Radioscience Laboratory, Stanford University, Stanford, CA 94305, USA.

3. Department of Astronomy, University of Maryland, College Park, MD 20742, USA.

4. Department of Astronomy, University of California, Berkeley, CA 94720, USA.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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