Results 41 to 50 of about 3,615 (185)

A Recipe for Geophysical Exploration of Enceladus [PDF]

arXiv, 2020
Orbital geophysical investigations of Enceladus are critical to understanding its energy balance. We identified key science questions for the geophysical exploration of Enceladus, answering which would support future assessment of Enceladus' astrobiological potential.
arxiv  

Convection, but How Fast Does Fluid Mix in Hydrothermal Systems?

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract The destabilizing thermal gradient across the Earth's lithosphere drives convection in superconfined hydrothermal environments at mid‐ocean ridges and geothermal reservoirs in the continental crust. Deep, hot waters rise in these regions and meet cold surface water that percolates through open fractures, creating complex and poorly understood ...
H. N. Ulloa, D. Noto, J. A. Letelier
wiley   +1 more source

Resonant Scattering of Radiation Belt Electrons by Saturnian Z‐Mode Waves

Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.
Abstract We investigated the resonant interactions between Z‐mode waves and radiation belt electrons at Saturn via constructing an empirical model of the frequency spectral and wave normal angle distributions of 5 and 20 kHz Saturnian Z‐mode waves using Cassini observations.
Xing Cao, Peng Lu, Binbin Ni, Shengyi Ye, Siyuan Wu, Minyi Long, Shaobei Wang   +6 more
wiley   +1 more source

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

The 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, Fabiola P. Magalhães, Laurent Lamy, Renée Prangé, Larry W. Esposito, Jacques Gustin, Abigail M. Rymer, Ali H. Sulaiman   +7 more
doaj   +1 more source

Ocean Dynamics of Outer Solar System Satellites

Geophysical Research Letters, 2019
Ocean worlds are prevalent in the solar system. Focusing on Enceladus, Titan, Europa, and Ganymede, I use rotating convection theory and numerical simulations to predict ocean currents and the potential for ice‐ocean coupling.
Krista M. Soderlund
doaj   +1 more source

Discriminating Aromatic Parent Compounds and Their Derivative Isomers in Ice Grains From Enceladus and Europa Using a Laboratory Analogue for Spaceborne Mass Spectrometers

Earth and Space Science, 2023
Results from the Cassini‐Huygens space mission at Enceladus revealed a substantial inventory of organic species embedded in plume and E ring ice grains originating from a global subsurface and putative habitable ocean.
N. Khawaja, T. R. O’Sullivan, F. Klenner, L. H. Sanchez, J. Hillier   +4 more
doaj   +1 more source

Interpretable Machine Learning Biosignature Detection From Ocean Worlds Analogue CO2 Isotopologue Data

Earth and Space Science, Volume 12, Issue 3, March 2025.
Abstract Future missions to icy ocean worlds (OW) such as Europa and Enceladus will evaluate the habitability and potential for biosignatures on these worlds. These missions will benefit from autonomous science and machine learning (ML) methods to process high volumes of data and prioritize signals of interest for the first available downlink.
Lily A. Clough, Victoria Da Poian, Jonathan D. Major, Lauren M. Seyler, Brett A. McKinney, Bethany P. Theiling   +5 more
wiley   +1 more source

Geysers' Dust Dynamics Inside the Hill Sphere of Enceladus

Geophysical 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, Pedro Elías Mirón‐Enríquez, Alma Karen Ramírez‐Cabañas   +2 more
doaj   +1 more source

Ion Phase Space Density Profiles Within the Magnetosphere of Saturn: Investigating the Source of Suprathermal Ions

Journal of Geophysical Research: Space Physics, Volume 130, Issue 3, March 2025.
Abstract Phase space density (PSD) profiles at fixed values of the first two adiabatic invariants (μ ${\upmu }$; magnetic moment and k $k$; longitudinal invariant) versus L shell provide a quantitative way to investigate the sources, losses, and radial transport of plasma and energetic charged particles within a planetary magnetosphere.
R. C. Allen, S. K. Vines, C. P. Paranicas, W. Mo, K. Dialynas   +4 more
wiley   +1 more source

The Effect of Salinity on Ocean Circulation and Ice–Ocean Interaction on Enceladus

The Planetary Science Journal
Observational data suggest that the ice shell on Enceladus is thicker at the equator than at the pole, indicating an equator-to-pole ice flow. If the ice shell is in an equilibrium state, the mass transport of the ice flow must be balanced by the ...
Yaoxuan Zeng, Malte F. Jansen
doaj   +1 more source