 |
| Titel |
Grain Dynamics in Enceladus' Dust Plume and Feeding of the E Ring |
| VerfasserIn |
Jürgen Schmidt, Sascha Kempf, Uwe Beckmann, Frank Postberg, Jon Hillier, Paul Schenk, Ralf Srama |
| Konferenz |
EGU General Assembly 2010
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250043757
|
|
|
|
|
|
| Zusammenfassung |
| The active moon Enceladus ejects water gas and tiny ice grains into the Saturnian system through its south polar plume. The ice particles form Saturn's dusty E ring. We show that three-body effects determine the inclination distribution of the faster plume particles escaping the moon and feeding the E ring. On the other hand, most grains, ejected at small speeds, re-impact the moon on preferred regions which are also determined by the three-body gravitational interaction with Enceladus and Saturn. The grains recorded by the Cassini Cosmic Dust Analyzer on plume traversals show systematic compositional differences, relating composition to dynamical properties. |
|
|
|
|
|
|