Variations in plume activity reveal the dynamics of water-filled faults on Enceladus
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10486376" target="_blank" >RIV/00216208:11320/24:10486376 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/24:10486376
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=17epW8n5Ih" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=17epW8n5Ih</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-024-51677-z" target="_blank" >10.1038/s41467-024-51677-z</a>
Alternative languages
Result language
angličtina
Original language name
Variations in plume activity reveal the dynamics of water-filled faults on Enceladus
Original language description
After discovering a jet activity near the south pole of Saturn's moon Enceladus, the Cassini mission demonstrated the existence of a subsurface water ocean with a unique sampling opportunity through flybys. Diurnal variations in the observed brightness of the plume suggest a tidal control, although the existence and timing of two activity maxima seem to contradict stress analysis predictions. Here, we re-interpret the observed plume variability by combining a 3D global model of tidal deformation of the fractured ice shell with a 1D local model of transport processes within south-polar faults. Our model successfully predicts the observed plume's temporal variability by combining two independent vapour transport mechanisms: slip-controlled jet flow and normal-stress-controlled ambient flow. Moreover, it provides a possible explanation for the differences between the vapour and solid emission rates during the diurnal cycle and the observed fractionation of the various icy particle families. Our model prediction could be tested by future JWST observations targeted when Enceladus is at different positions on its orbit and could be used to determine the optimal strategy for plume material sampling by future space missions.Cassini mission revealed water-rich plumes, with temporal variation, near the south pole of Saturn's moon Enceladus. Here, the authors show combination of slip-controlled jet flow and normal-stress-controlled ambient flow can explain the temporal variability of Enceladus' plumes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
<a href="/en/project/GA22-20388S" target="_blank" >GA22-20388S: Evolving Ice Shells - processes shaping planetary ice shells inferred from numerical modelling</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Communications
ISSN
2041-1723
e-ISSN
2041-1723
Volume of the periodical
15
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
7405
UT code for WoS article
001299163800002
EID of the result in the Scopus database
2-s2.0-85202341695