A recently formed ocean inside Saturn's moon Mimas.


Journal

Nature
ISSN: 1476-4687
Titre abrégé: Nature
Pays: England
ID NLM: 0410462

Informations de publication

Date de publication:
Feb 2024
Historique:
received: 28 02 2023
accepted: 14 12 2023
medline: 8 2 2024
pubmed: 8 2 2024
entrez: 7 2 2024
Statut: ppublish

Résumé

Moons potentially harbouring a global ocean are tending to become relatively common objects in the Solar System

Identifiants

pubmed: 38326592
doi: 10.1038/s41586-023-06975-9
pii: 10.1038/s41586-023-06975-9
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

280-282

Informations de copyright

© 2024. The Author(s), under exclusive licence to Springer Nature Limited.

Références

Castillo-Rogez, J. et al. Compositions and interior structures of the large moons of Uranus and implications for future spacecraft observations. J. Geophys. Res. Planets 128, e2022JE007432 (2023).
doi: 10.1029/2022JE007432 pubmed: 37034459 pmcid: 10078161
Ćuk, M., Dones, L. & Nesvorný, D. Dynamical evidence for a late formation of Saturn’s moons. Astrophys. J. 820, 97 (2016).
doi: 10.3847/0004-637X/820/2/97
Rhoden, A. R. & Walker, M. E. The case for an ocean-bearing Mimas from tidal heating analysis. Icarus 376, 114872 (2022).
doi: 10.1016/j.icarus.2021.114872
Tajeddine, R. et al. Constraints on Mimas’ interior from Cassini ISS libration measurements. Science 346, 322–324 (2014).
doi: 10.1126/science.1255299 pubmed: 25324382
Borderies, N. & Yoder, C. F. Phobos’ gravity field and its influence on its orbit and physical librations. Astron. Astrophys. 233, 235–251 (1990).
Lainey, V., Rambaux, N., Cooper, N. & Zhang, Q. Characterizing the interior of five inner Saturnian moons using Cassini ISS data. Astron. Astrophys. 670, L25 (2023).
doi: 10.1051/0004-6361/202244757
Viswanathan, V., Rambaux, N., Fienga, A., Laskar, J. & Gastineau, M. Observational constraint on the radius and oblateness of the lunar core–mantle boundary. Geophys. Res. Lett. 46, 7295–7303 (2019).
doi: 10.1029/2019GL082677
Balmino, G. Gravitational potential harmonics from the shape of an homogeneous body. Celest. Mech. Dyn. Astron. 60, 331–364 (1994).
doi: 10.1007/BF00691901
Tobie, G., Grasset, O., Lunine, J. I., Mocquet, A. & Sotin, C. Titan’s internal structure inferred from a coupled thermal–orbital model. Icarus 175, 496–502 (2005).
doi: 10.1016/j.icarus.2004.12.007
Tobie, G., Mocquet, A. & Sotin, C. Tidal dissipation within large icy satellites: applications to Europa and Titan. Icarus 177, 534–549 (2005).
doi: 10.1016/j.icarus.2005.04.006
Cadek, O. et al. Long-term stability of Enceladus’ uneven ice shell. Icarus 319, 476–484 (2019).
doi: 10.1016/j.icarus.2018.10.003
Ćuk, M. & El Moutamid, M. Three-body resonances in the Saturnian system. Astrophys. J. 926, L18 (2022).
Baillié, K., Noyelles, B., Lainey, V., Charnoz, S. & Tobie, G. Formation of the Cassini Division—I. Shaping the rings by Mimas inward migration. Mon. Not. R. Astron. Soc. 486, 2933–2946 (2019).
doi: 10.1093/mnras/stz548
Noyelles, B., Baillié, K., Charnoz, S., Lainey, V. & Tobie, G. Formation of the Cassini Division—II. Possible histories of Mimas and Enceladus. Mon. Not. R. Astron. Soc. 486, 2947–2963 (2019).
doi: 10.1093/mnras/stz445
Wisdom, J. et al. Loss of a satellite could explain Saturn’s obliquity and young rings. Science 377, 1285–1289 (2022).
doi: 10.1126/science.abn1234 pubmed: 36107998
Lainey, V. et al. Strong tidal dissipation in Saturn and constraints on Enceladus’ thermal state from astrometry. Astrophys. J. 752, 14 (2012).
Lainey, V. et al. New constraints on Saturn’s interior from Cassini astrometric data. Icarus 281, 286–296 (2017).
doi: 10.1016/j.icarus.2016.07.014
Lainey, V. et al. Resonance locking in giant planets indicated by the rapid orbital expansion of Titan. Nat. Astron. 4, 1053–1058 (2020).
doi: 10.1038/s41550-020-1120-5
Zandanel, A. et al. Short lifespans of serpentinization in the rocky core of Enceladus: implications for hydrogen production. Icarus 364, 114461 (2021).
Zandanel, A. et al. Geologically rapid aqueous mineral alteration at subfreezing temperatures in icy worlds. Nat. Astron. 6, 554–559 (2022).
doi: 10.1038/s41550-022-01613-2
Cooper, N. J. et al. The Caviar software package for the astrometric reduction of Cassini ISS images: description and examples. Astron. Astrophys. 610, A2 (2018).
doi: 10.1051/0004-6361/201731713
Rambaux, N., Lainey, V., Cooper, N., Auzemery, L. & Zhang, Q. F. Spherical harmonic decomposition and interpretation of the shapes of the small Saturnian inner moons. Astron. Astrophys. 667, A78 (2022).
doi: 10.1051/0004-6361/202243355
Zhang, Q. F. et al. A comparison of centring algorithms in the astrometry of Cassini imaging science subsystem images and Anthe’s astrometric reduction. Mon. Not. R. Astron. Soc. 505, 5253–5259 (2021).
doi: 10.1093/mnras/stab1626
Iess, L. et al. Measurement and implications of Saturn’s gravity field and ring mass. Science 364, aat2965 (2019).
doi: 10.1126/science.aat2965
Iess, L. et al. The tides of Titan. Science 337, 457–459 (2012).
doi: 10.1126/science.1219631 pubmed: 22745254
Iess, L. et al. The gravity field and interior structure of Enceladus. Science 344, 78–80 (2014).
doi: 10.1126/science.1250551 pubmed: 24700854
Militzer, B. & Hubbard, W. Relation of gravity, winds, and the moment of inertia of Jupiter and Saturn. Planet. Sci. J. 4, 95 (2023).
French, R. G. et al. Astrometry of Saturn’s satellites from the Hubble Space Telescope WFPC2. Publ. Astron. Soc. Pac. 118, 246–259 (2006).
doi: 10.1086/499215
Jacobson, R. A. The orbits and masses of the Martian satellites and the libration of Phobos. Astron. J 139, 668–679 (2010).
doi: 10.1088/0004-6256/139/2/668
Lainey, V. et al. Interior properties of the inner Saturnian moons from space astrometry data. Icarus 326, 48–62 (2019).
doi: 10.1016/j.icarus.2019.01.026
Van Hoolst, T., Rambaux, N., Karatekin, Ö., Dehant, V. & Rivoldini, A. The librations, shape, and icy shell of Europa. Icarus 195, 386–399 (2008).
doi: 10.1016/j.icarus.2007.12.011
Rambaux, N., van Hoolst, T. & Karatekin, Ö. Librational response of Europa, Ganymede, and Callisto with an ocean for a non-Keplerian orbit. Astron. Astrophys. 527, A118 (2011).
doi: 10.1051/0004-6361/201015304
Richard, A., Rambaux, N. & Charnay, B. Librational response of a deformed 3-layer Titan perturbed by non-Keplerian orbit and atmospheric couplings. Planet. Space Sci. 93, 22–34 (2014).
doi: 10.1016/j.pss.2014.02.006
Xu, S. & Szeto, A. M. K. Gravitational coupling in the Earth’s interior revisited. Geophys. J. Int. 118, 94–100 (1994).
doi: 10.1111/j.1365-246X.1994.tb04677.x
Thomas, P. C. et al. Shapes of the Saturnian icy satellites and their significance. Icarus 190, 573–584 (2007).
doi: 10.1016/j.icarus.2007.03.012
Choblet, G. et al. Powering prolonged hydrothermal activity inside Enceladus. Nat. Astron. 1, 841–847 (2017).
doi: 10.1038/s41550-017-0289-8
Castillo-Rogez, J. C., Efroimsky, M. & Lainey, V. The tidal history of Lapetus: spin dynamics in the light of a refined dissipation model. J. Geophys. Res. 116, E09008 (2011).
Saito, M. Some problems of static deformation of the Earth. J. Phys. Earth 22, 123–140 (1974).
doi: 10.4294/jpe1952.22.123
Takeushi, H. & Saito, M. in Methods in Computational Physics Vol. 1 (ed. Bolt, B. A.) 217–295 (Academic Press, 1972).
Grasset, O. & Pargamin, J. The ammonia water system at high pressures: implications for the methane of Titan. Planet. Space Sci. 53, 371–384 (2005).
doi: 10.1016/j.pss.2004.09.062
Waite, J. H. et al. Cassini finds molecular hydrogen in the Enceladus plume: evidence for hydrothermal processes. Science 356, 155–159 (2017).
doi: 10.1126/science.aai8703 pubmed: 28408597

Auteurs

V Lainey (V)

IMCCE, Observatoire de Paris, PSL Research University, Sorbonne Université, CNRS, Université Lille, Paris, France. lainey@imcce.fr.

N Rambaux (N)

IMCCE, Observatoire de Paris, PSL Research University, Sorbonne Université, CNRS, Université Lille, Paris, France.

G Tobie (G)

LPG, UMR-CNRS 6112, Nantes Université, Nantes, France.

N Cooper (N)

Department of Physics and Astronomy, Queen Mary University of London, London, UK.

Q Zhang (Q)

Department of Computer Science, Jinan University, Guangzhou, P. R. China.

B Noyelles (B)

Institut UTINAM, CNRS UMR 6213, Université de Franche-Comté, OSU THETA, BP 1615, Besançon, France.

K Baillié (K)

IMCCE, Observatoire de Paris, PSL Research University, Sorbonne Université, CNRS, Université Lille, Paris, France.

Classifications MeSH