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UV-Induced Formation of Ice XI Observed Using an Ultra-High Vacuum Cryogenic Transmission Electron Microscope and its Implications for Planetary Science [PDF]
Frontiers in Chemistry, 2021 The occurrence of hydrogen atom-ordered form of ice Ih, ice XI, in the outer Solar System has been discussed based on laboratory experiments because its ferroelectricity influences the physical processes in the outer Solar System.
Akira Kouchi +12 more
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A Past Episode of Rapid Tidal Evolution of Enceladus?
The Planetary Science Journal, 2023 Saturn possesses a dynamically rich system containing numerous moons and impressive rings. Whether the rings of Saturn are much younger than the planet itself has been a long-standing open question; more recently a young age has been proposed for some ...
Matija Ćuk, Maryame El Moutamid
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A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons
The 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
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Modeling the Formation of Selk Impact Crater on Titan: Implications for Dragonfly
The Planetary Science Journal, 2023 Selk crater is an ∼80 km diameter impact crater on the Saturnian icy satellite Titan. Melt pools associated with impact craters like Selk provide environments where liquid water and organics can mix and produce biomolecules like amino acids. It is partly
Shigeru Wakita +5 more
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Energetic Constraints on Ocean Circulations of Icy Ocean Worlds
The Planetary Science Journal, 2023 Globally ice-covered oceans have been found on multiple moons in the solar system and may also have been a feature of Earth’s past. However, relatively little is understood about the dynamics of these ice-covered oceans, which affect not only the ...
Malte F. Jansen +3 more
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Material Properties of Organic Liquids, Ices, and Hazes on Titan
The Astrophysical Journal Supplement Series, 2023 Titan has a diverse range of materials in its atmosphere and on its surface: the simple organics that reside in various phases (gas, liquid, and ice) and the solid complex refractory organics that form Titan’s haze layers.
Xinting Yu +7 more
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Astrobiology eXploration at Enceladus (AXE): A New Frontiers Mission Concept Study
The Planetary Science Journal, 2023 The Saturnian moon Enceladus presents a unique opportunity to sample the contents of a subsurface liquid water ocean in situ via the continuous plume formed over its south polar terrain using a multi-flyby mission architecture.
K. Marshall Seaton +19 more
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Tethys’s Heat Fluxes Varied with Time in the Ithaca Chasma and Telemus Basin Region
The Planetary Science Journal, 2023 We investigated how lithospheric heat fluxes varied temporally and spatially on the Saturnian moon Tethys, focusing on the region of Ithaca Chasma that overprints Telemus Impact Basin.
Chloe B. Beddingfield +3 more
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Spitzer IRS Observations of Titan as a Precursor to JWST MIRI Observations
The Planetary Science Journal, 2023 In this work, we present for the first time infrared spectra of Titan from the Spitzer Space Telescope (2004–2009). The data are from both the short wavelength–low resolution (SL; 5.13–14.29 μ m, R ∼ 60–127) and short wavelength–high resolution (SH; 9.89–
Brandon Park Coy +6 more
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IR SPECTRAL MAPPING OF THE MARTIAN SOUTH POLAR RESIDUAL CAP USING CRISM [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Polycyclic aromatic hydrocarbons (PAHs) are considered to be important in theories of abiogenesis (Allamandola, 2011) . There is evidence that PAHs have been detected on two icy Saturnian satellites using the Visual and Infrared Mapping Spectrometer ...
J. Campbell +3 more
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