Enceladus's internal ocean and ice shell constrained from Cassini gravity, shape, and libration data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10330173" target="_blank" >RIV/00216208:11320/16:10330173 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/2016GL068634" target="_blank" >http://dx.doi.org/10.1002/2016GL068634</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/2016GL068634" target="_blank" >10.1002/2016GL068634</a>
Alternative languages
Result language
angličtina
Original language name
Enceladus's internal ocean and ice shell constrained from Cassini gravity, shape, and libration data
Original language description
The intense plume activity at the South Pole of Enceladus together with the recent detection of libration hints at an internal water ocean underneath the outer ice shell. However, the interpretation of gravity, shape, and libration data leads to contradicting results regarding the depth of ocean/ice interface and the total volume of the ocean. Here we develop an interior structure model consisting of a rocky core, an internal ocean, and an ice shell, which satisfies simultaneously the gravity, shape, and libration data. We show that the data can be reconciled by considering isostatic compensation including the effect of a few hundred meter thick elastic lithosphere. Our model predicts that the core radius is 180-185km, the ocean density is at least 1030kg/m(3), and the ice shell is 18-22km thick on average. The ice thicknesses are reduced at poles decreasing to less than 5km in the south polar region.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geophysical Research Letters
ISSN
0094-8276
e-ISSN
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Volume of the periodical
43
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
5653-5660
UT code for WoS article
000379851800014
EID of the result in the Scopus database
2-s2.0-84977449616