期刊
ICARUS
卷 277, 期 -, 页码 311-318出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2016.05.025
关键词
Enceladus; Interiors; Rotational dynamics
资金
- FSR grant from UCL
- Belgian PRODEX program
- Belgian Federal Science Policy Office
We determine constraints on the ice shell and ocean of Enceladus from the observed libration at orbital period by assessing the effects of uncertainties in the size, density, rigidity, and viscosity of the internal layers and of the non-hydrostatic structure on the libration. The observed libration amplitude implies that the average thickness of the ice shell is between 14 km and 26 km and that the ocean is 21 km to 67 km thick. (C) 2016 Elsevier Inc. All rights reserved.
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