Results 51 to 60 of about 4,500 (216)

Cassini UVIS Observations of the Enceladus Auroral Footprint on Saturn in 2017

open access: yesThe Planetary Science Journal
Ultraviolet Imaging Spectrograph (UVIS) observations show the Enceladus auroral footprint on Saturn on 2017 September 14, near the end of the Cassini mission.
Wayne R. Pryor   +7 more
doaj   +1 more source

Features in the Visible Spectra of the Enceladus Particle Plume and E Ring: Potential Evidence of Organic Materials and/or Missing Sub‐Micron Particles

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Visible spectra of the Enceladus particle plume and E ring contain evidence for a change in spectral slope around 0.5 μm. This feature can be seen in data obtained by both the Visual and Infrared Mapping Spectrometer and Imaging Science Subsystem onboard the Cassini Spacecraft, and is consistent with the slope change seen in the surface ...
M. M. Hedman, S. M. MacKenzie
wiley   +1 more source

An Oceanic Mechanism for Geyser Formation on Enceladus

open access: yesAGU Advances, Volume 7, Issue 5, August 2026.
Abstract The tiger stripes of Enceladus are a sequence of four parallel and evenly‐spaced fissures 130 km long that erupt water from a global subsurface ocean into space. We present an ocean dynamical theory of their formation. Given one initial fissure, topography on the underside of the ice shell rubs periodically against the ocean due to the ...
D. Y. Abdulah, W. Kang, A. Berne
wiley   +1 more source

Estimating the Initial Mass of the Gaia–Enceladus Dwarf Galaxy with a Chemical Evolution Model

open access: yesThe Astrophysical Journal
This work investigates the initial mass and chemical evolution history of the Gaia–Enceladus dwarf galaxy. We combine spectroscopic data from APOGEE with astrometric data from Gaia Data Release 3 to identify Gaia–Enceladus candidate stars via a machine ...
Olcay Plevne, Furkan Akbaba
doaj   +1 more source

Is Enceladus' plume tidally controlled?

open access: yesGeophysical Research Letters, 2008
Explanations for the plume of gas, water vapor and ice particles jetting from rifts in Enceladus' south polar region include boiling of liquid water and dissociation of clathrate hydrates.
I. Halevy, S. T. Stewart
doaj   +1 more source

AI Based Velocity Calibration for Cassini's Cosmic Dust Analyzer (CDA)

open access: yesEarth and Space Science, Volume 13, Issue 8, August 2026.
Abstract This paper presents a novel AI‐based velocity calibration method for the Cosmic Dust Analyzer (CDA) onboard the Cassini spacecraft, in particular for impacts on the large Impact Ionization Detector (IID). The legacy polynomial calibration function, derived from laboratory measurements at a dust accelerator facility, assigns a velocity ...
Thomas Albin, Jonas Simolka, Ralf Srama
wiley   +1 more source

Geysers' Dust Dynamics Inside the Hill Sphere of Enceladus

open access: yesGeophysical Research Letters
In this work, we study the trajectories of the dust particles ejected in the geysers of the moon Enceladus, inside its Hill sphere, where its gravitational influence dominates. Our goal is to determine the properties of the particles that escape from the
Alberto Flandes   +2 more
doaj   +1 more source

A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons

open access: yesThe Astrophysical Journal, 2023
We simulate the collision of precursor icy moons analogous to Dione and Rhea as a possible origin for Saturn’s remarkably young rings. Such an event could have been triggered a few hundred million years ago by resonant instabilities in a previous ...
L. F. A. Teodoro   +7 more
doaj   +1 more source

Aggregate particles in the plumes of Enceladus [PDF]

open access: yesIcarus, 2016
44 pages, 8 figures, 2 tables, Published in ...
Gao, Peter   +3 more
openaire   +3 more sources

A Physics‐Based Frequency‐Temperature Seismic Anelastic Attenuation Model for Planetary Ice Shells

open access: yesEarth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Intrinsic attenuation in planetary ices remains poorly constrained at seismic frequencies and low temperatures, limiting quantitative predictions of wave propagation in icy moons. Existing models typically rely on constant‐Q, or power‐law formulations that lack microphysical grounding and fail to capture the strong temperature sensitivity of ...
L. Delaroque   +3 more
wiley   +1 more source

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