Cassini dust measurements at Enceladus and implications for the origin of the E ring.
Science
; 311(5766): 1416-8, 2006 Mar 10.
Article
em En
| MEDLINE
| ID: mdl-16527969
ABSTRACT
During Cassini's close flyby of Enceladus on 14 July 2005, the High Rate Detector of the Cosmic Dust Analyzer registered micron-sized dust particles enveloping this satellite. The dust impact rate peaked about 1 minute before the closest approach of the spacecraft to the moon. This asymmetric signature is consistent with a locally enhanced dust production in the south polar region of Enceladus. Other Cassini experiments revealed evidence for geophysical activities near Enceladus' south pole a high surface temperature and a release of water gas. Production or release of dust particles related to these processes may provide the dominant source of Saturn's E ring.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Saturno
/
Poeira Cósmica
/
Meio Ambiente Extraterreno
Idioma:
En
Revista:
Science
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Alemanha