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Spacecraft observations suggest that the plumes of Saturn's moon Enceladus draw water from a subsurface ocean, but the sustainability of conduits linking ocean and surface is not understood. Observations show sustained (though tidally…

Earth and Planetary Astrophysics · Physics 2016-06-02 Edwin S. Kite , Allan M. Rubin

Active eruptions from the south polar region of Saturn's small (~500 km diameter) moon Enceladus are concentrated along a series of lineaments known as the `tiger stripes', thought to be partially open fissures that connect to the liquid…

Geophysics · Physics 2019-11-11 Douglas J. Hemingway , Maxwell L. Rudolph , Michael Manga

Enceladus is a primary target for astrobiology due to the $\rm H_2O$ plume ejecta measured by the Cassini spacecraft and the inferred subsurface ocean sustained by tidal heating. Sourcing the plumes via a direct connection from the ocean to…

The geologic activity at Enceladus's south pole remains unexplained, though tidal deformations are probably the ultimate cause. Recent gravity and libration data indicate that Enceladus's icy crust floats on a global ocean, is rather thin,…

Earth and Planetary Astrophysics · Physics 2017-11-23 Mikael Beuthe

Since the discovery of an ice particle plume erupting from the south polar terrain on Saturn's moon Enceladus, the geophysical mechanisms driving its activity have been the focus of substantial scientific research. The pattern and…

Earth and Planetary Astrophysics · Physics 2018-10-10 Ben Southworth , Sascha Kempf , Joe Spitale

Much of the geologic activity preserved on Europa's icy surface has been attributed to tidal deformation, mainly due to Europa's eccentric orbit. Although the surface is geologically young (30 - 80 Myr), there is little information as to…

Earth and Planetary Astrophysics · Physics 2015-06-24 Alyssa R. Rhoden , Terry A. Hurford , Lorenz Roth , Kurt Retherford

Saturn raises a time-dependent tide on its small moon Enceladus, due to the eccentricity of the orbit. As shown in a companion paper (Goldreich et al.), the resulting tidal heating drives Enceladus into a limit cycle, in which its…

Earth and Planetary Astrophysics · Physics 2025-03-05 Yoram Lithwick

Enceladus is believed to have a saltwater global ocean with a mean depth of at least 30~km, heated from below at the ocean-core interface and cooled at the top, where the ocean loses heat to the icy lithosphere above. This scenario suggests…

Earth and Planetary Astrophysics · Physics 2021-03-30 Ana H. Lobo , Andrew F. Thompson , Steven D. Vance , Saikiran Tharimena

The geologically active south pole of Enceladus generates a plume of micron-sized particles, which likely form Saturn's tenuous E-ring extending from the orbit of Mimas to Titan. Interactions between these particles and satellites have been…

Earth and Planetary Astrophysics · Physics 2022-05-24 Naoyuki Hirata , Hideaki Miyamoto , Adam P. Showman

The ice shell on Enceladus, an icy moon of Saturn, exhibits strong asymmetry between the northern and southern hemispheres, with all known geysers concentrated over the south pole, even though the expected pattern of tidal-rotational…

Earth and Planetary Astrophysics · Physics 2022-05-25 Wanying Kang , Glenn Flierl

Enceladus exhibits some remarkable phenomena, including water geysers spraying through surface cracks, a global ice shell that is librating atop an ocean, a large luminosity, and rapid outward orbital migration. Here we model the coupled…

Earth and Planetary Astrophysics · Physics 2025-03-05 Peter Goldreich , Yoram Lithwick , Jing Luan

Over the south pole of Enceladus, an icy moon of Saturn, geysers eject water into space in a striped pattern, making Enceladus one of the most attractive destinations in the search for extraterrestrial life. We explore the ocean dynamics…

Earth and Planetary Astrophysics · Physics 2022-06-01 Wanying Kang , John Marshall , Tushar Mittal , Suyash Bire

Enceladus' plume consists mainly of a mixture of water vapor and solid ice particles that may originate from a subsurface ocean. The physical processes underlying Enceladus' plume particle dynamics are still being debated, and quantifying…

Earth and Planetary Astrophysics · Physics 2023-05-24 H. Sharma , M. M. Hedman , S. Vahidinia

The extraordinary activity at Enceladus' warm south pole indicates the presence of an internal global or local reservoir of liquid water beneath the surface. While Tyler (2009, 2011) has suggested that the geological activity and the large…

Earth and Planetary Astrophysics · Physics 2016-01-27 Rose-Marie Baland , Marie Yseboodt , Tim Van Hoolst

Tidal heating is the prime suspect behind Enceladus's south polar heating anomaly and global subsurface ocean. No model of internal tidal dissipation, however, can explain at the same time the total heat budget and the focusing of the…

Earth and Planetary Astrophysics · Physics 2020-01-28 Mikael Beuthe

We report observations of stripe-like features in Enceladus' plumes captured simultaneously by Cassini's VIMS-IR and ISS NAC instruments during flyby E17, with similar patterns seen in VIMS-IR data from flyby E13 and E19. These parallel…

Enceladus is the Saturnian satellite known to have water vapor erupting from its south pole region called Tiger Stripes. Data collected by Cassini Ultraviolet Imaging Spectrograph during Enceladus transiting Saturn allow us to estimate…

Earth and Planetary Astrophysics · Physics 2024-03-26 Jan Kotlarz , Katarzyna Kubiak , Natalia Zalewska

Beneath the icy shell encasing Enceladus, a small icy moon of Saturn, a global ocean of liquid water ejects geyser-like plumes into space through fissures in the ice, making it an attractive place to investigate habitability and to search…

Earth and Planetary Astrophysics · Physics 2020-08-11 Wanying Kang , Suyash Bire , Jean-Michel Campin , Christophe Sotin , Christopher German , Andreas Thurnherr , John Marshall

Based on recent findings of a formation mechanism of substructure in tidal tails by Kuepper, Macleod & Heggie (2008) we investigate a more comprehensive set of N-body models of star clusters on orbits about a Milky-Way-like potential. We…

Solar and Stellar Astrophysics · Physics 2015-05-14 A. H. W. Kuepper , P. Kroupa , H. Baumgardt , D. C. Heggie

Could tidal dissipation within Enceladus' subsurface ocean account for the observed heat flow? Earthlike models of dynamical tides give no definitive answer because they neglect the influence of the crust. I propose here the first model of…

Geophysics · Physics 2017-11-23 Mikael Beuthe
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