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The Planetary Science Journal
Scopus
ISSN 2632-3338 · IOP Publishing · 1.089 artikel di indeks
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Artikel Jurnal
Evolution of the Mercurian Crust as Recorded in Carbon
Mercury and other silicate bodies are essential for understanding planetary formation and evolution. The surface of Mercury is unique and enigmatic, yet this innermost planet remains the least explored. The crust exhibits relatively low reflectance, possibly due to the excavation of a buried…
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Artikel Jurnal
Nucleus Ice Associations in Comets Derived from Spatially Resolved Properties of Volatile Gases in the Coma
Under favorable conditions, high-resolution long-slit infrared spectroscopic observations of comets can provide information on how ices are associated within the nucleus from spatially resolved properties of volatiles in the coma. In this study, we demonstrate the utility of this technique by…
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Spin Parameters and Shape Models of Near-Earth Asteroids (4660) Nereus, (21088) Chelyabinsk, (66146) 1998 TU3, and (297418) 2000 SP43
We present our shape and rotational characterization of four near-Earth asteroids observed as part of the Visible NEAs Observations Survey. This work includes 61 new light curves obtained between 2020 June and 2024 September for asteroids (21088) Chelyabinsk and (66146) 1998 TU3 and the potentially…
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Col-OSSOS: Investigating the Origins of Different Surfaces in the Primordial Kuiper Belt
The Colours of the Outer Solar System Origins Survey (Col-OSSOS) measured the optical/near-IR colors of a brightness-complete sample of trans-Neptunian objects (TNOs). Like previous surveys, this one found a bimodal color distribution in TNOs, categorized as red and very red. Additionally, this…
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Artikel Jurnal
Photochemistry in Jupiter’s Ionosphere: Insights from Simultaneous and Electron Density Observations during Juno Perijove 54
Observations of continuous vertical electron and ion distributions at Jupiter were obtained simultaneously for the first time on 2023 September 7 UTC. On that date, Juno performed a radio occultation experiment and, in parallel, JWST and Keck scanned Jupiter’s limb, focused on characterizing H…
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Spectral Evidence for Recent/Ongoing Activity in Mercury’s Praxiteles Basin
Mercury’s surface, as revealed by the MESSENGER probe, lacks distinctive absorption features in the visible–near-infrared spectral range, except for hollows that display a 630 nm feature ascribed to sulfides. The general absence of spectral features makes inference of its surface mineralogical…
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Artikel Jurnal
Modeling the Meteoroid Environment Far from the Ecliptic Plane
We describe a new version (numbered 3.1) of NASA’s Meteoroid Engineering Model, in which we extend the model to handle locations that lie more than a few degrees in latitude off the ecliptic plane. We provide our algorithms for computing the spatial density and directionality of meteoroids far from…
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An Integrated Framework for Global Detection and Quantification of Lunar Pyroclastic Deposits
Lunar pyroclastic deposits (LPDs) composed of Fe–Ti-bearing volcanic glasses are considered one of the best proxies to understand the primitive lunar mantle composition. These deposits are characterized by very low albedo and smooth surfaces associated with volcanic landforms. While regional LPDs…
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Modeling the Effects of Anthropogenic Activities on the Lunar Environment with a Systems-theoretic Approach
An increasing number of missions to the Moon are planned for the future. However, their long-term, cumulative impacts on the lunar environment are unknown. Research indicates that some important scientific discovery potential may be permanently lost, and exploration may become challenging due to…
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Covertly Active Comet (139359) 2001 ME1
On 2018 November 18, coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) captured an unrecognized comet crossing its fields of view. We identified this comet to be the minor planet (139359) 2001 ME _1 , whose previously unnoticed dust activity near perihelion became optically…
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Remote Compositional Analyses of Space-weathered Lunar Maria
Visible-to-shortwave infrared (VSWIR) reflectance spectroscopy has revolutionized our understanding of planetary surface compositions. However, space-weathering processes on airless bodies complicate quantitative compositional analyses. Here, we present a framework to isolate the signatures of…
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Artikel Jurnal
Dripping to Destruction: Exploring Salt-driven Viscous Surface Convergence in Europa’s Icy Shell
The Europan ice shell is thought to be simultaneously a key contributor and a barrier to the underlying ocean’s habitability. Life-supporting oxidants formed by surface radiolysis have the potential to be a significant component toward the long-term sustenance of a Europan biosphere. However, these…
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Artikel Jurnal
Model for Determining the Origin of Lunar Volatiles Based on Their Composition: Application to NASA’s VIPER and Other Landed Missions
Lunar volatiles provide a potentially pristine record of the history of the Earth–Moon system in terms of both geologic activity and delivery of volatiles from the outer solar system. Efforts to return humans to the Moon present an unprecedented opportunity to determine the origin of volatiles…
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Determination of Venus’s Rotation State Using Radio-tracking Data from the Venus Express Spacecraft
Despite its similarities to Earth, our understanding of Venus remains limited, particularly regarding its long retrograde rotation period. This has been measured using both Earth-based and in-orbit methods. However, the values obtained exhibit significant variations that cannot be explained by…
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Toward Reliable Interpretations of Small-exoplanet Compositions: Comparisons and Considerations of Equations of State and Materials Used in Common Rocky Planet Models
The bulk compositions of small planets ( R _p < 2 R _⊕ ) are directly linked to their formation histories, making reliable compositional constraints imperative for testing models of planet formation and evolution. Because exoplanet interiors cannot be directly observed, their makeup must be…
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Artikel Jurnal
Hydration Features on Near-Earth Objects: Integrating New Data with Prior Results
Near-Earth objects (NEOs) are excellent laboratories for testing processes that affect airless bodies, as well as informing us about solar system history. Though most NEOs are nominally anhydrous because they formed inside the solar system frost line and their surface temperatures are high enough…
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Not Earth-like yet Temperate? More Generic Climate Feedback Configurations Still Allow Temperate Climates in Habitable Zone Exo-Earth Candidates
Earth’s climate is influenced by over a dozen types of feedback, but only three dominate its long-term climate behavior. Models of the exoplanet habitable zone (HZ) assume that this is similar for other Earth-like planets. We used dynamical simulations to study Earth-like planets with a fourth…
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Artikel Jurnal
The Fate of Frozen Carbonated Water at Europa-like Conditions
We present the results of experiments probing the retention of CO _2 in crystalline water ice, frozen sodium chloride (NaCl) brines, and flash-frozen carbonated water using diffuse reflectance infrared spectroscopy. Characteristic absorptions alluding to the formation of clathrate hydrates in…
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Artikel Jurnal
Revealing Exotic Nanophase Iron in Lunar Samples through Impact-driven Spatial Fingerprints
Nanophase iron (npFe) plays a crucial role in controlling the optical, chemical, and physical evolution of lunar regolith grains. While in situ formation of npFe via reduction of native Fe-bearing minerals has long been considered a dominant pathway, recent mineralogical evidence from X. Zeng et…
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Artikel Jurnal
Carbonated Chondrites during Giant Impacts
The volatile budget of terrestrial planets is primarily inherited from the accretion process. At this stage, impacts played a significant role in delivering or removing volatiles from the silicate of young planets. Among those volatile elements, carbon is particularly interesting, as it is thought…
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