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Machine Learning Exploration Of Binding Energy Distributions Of H2O At Astrochemically Relevant Dust Grain Surfaces
6+ hour, 45+ min ago (304+ words) Machine Learning Exploration Of Binding Energy Distributions Of H2O At Astrochemically Relevant Dust Grain Surfaces'astrobiology.com Machine Learning Exploration Of Binding Energy Distributions Of H2O At Astrochemically Relevant Dust Grain Surfaces Binding energies (BEs) of adsorbates on interstellar dust grains critically control…...
Chemistry in Extreme Environments: The Mystery of Molecular Complexity In Space
3+ day, 8+ hour ago (161+ words) Chemistry in Extreme Environments: The Mystery of Molecular Complexity In Space'astrobiology.com Chemistry in Extreme Environments: The Mystery of Molecular Complexity In Space Molecular complexity in the interstellar medium (ISM) poses one of the most intriguing challenges in astrochemistry: how…...
Supramolecular Interactions of Organometallic Origin Facilitating Astrochemical Reactions: An Electronic Structure Study Featuring Metal Cyanides versus Metal Isocyanides
3+ day, 8+ hour ago (649+ words) Supramolecular Interactions of Organometallic Origin Facilitating Astrochemical Reactions: An Electronic Structure Study Featuring Metal Cyanides versus Metal Isocyanides'astrobiology.com Supramolecular Interactions of Organometallic Origin Facilitating Astrochemical Reactions: An Electronic Structure Study Featuring Metal Cyanides versus Metal Isocyanides This work highlights…...
A Narrowband Technosignature Search Toward The Hycean Candidate K2-18b Using The VLA And MeerKAT
3+ day, 8+ hour ago (202+ words) K2-18b, a sub-Neptune exoplanet located in the habitable zone of its host star, has emerged as an important target for atmospheric characterization and assessments of potential habitability. Motivated by recent interpretations of JWST observations suggesting a hydrogen-rich atmosphere consistent with Hycean-world…...
Why Only A Small Number Of Planets Are Suitable For Life
4+ day, 5+ hour ago (292+ words) Core formation as a form of cosmic roulette When planets form, they initially develop out of molten rock. A sorting process occurs during this time: heavy metals such as iron sink down and form the core, while lighter metals form…...
Sulfur Enrichment In Close-in Exoplanet Atmospheres Induced By Pebble Drift Across The Salt Line
4+ day, 5+ hour ago (755+ words) Sulfur Enrichment In Close-in Exoplanet Atmospheres Induced By Pebble Drift Across The Salt Line'astrobiology.com Sulfur Enrichment In Close-in Exoplanet Atmospheres Induced By Pebble Drift Across The Salt Line Observations of JWST have revealed that several close-in exoplanets have sulfur-rich…...
The Power Of Polarimetry For Characterising Exoplanet Atmospheres, Clouds, And Surfaces With NASA's Habitable Worlds Observatory
4+ day, 17+ hour ago (202+ words) The Habitable Worlds Observatory (HWO), planned for launch in the 2040s, represents the next major step in exoplanet characterisation. HWO will, for the first time, enable detailed studies of the atmospheres and surfaces of Earth-like exoplanets through high-contrast reflection spectroscopy across…...
The Effects Of Non-ideal Mixing In Planetary Magma Oceans And Atmospheres
6+ day, 5+ hour ago (205+ words) Recent advances in both geochemistry and astrophysics now allow the integration of experimental constraints and thermodynamic models across melt, metal, and gas phases. Here we extend a global chemical equilibrium model to include non-ideal behavior in all three phases. Our…...
Broadband Infrared Spectroscopy Of Methanol Isotopologues In pure, H2O-rich, And CO-rich Ice Analogues
6+ day, 5+ hour ago (53+ words) Broadband Infrared Spectroscopy Of Methanol Isotopologues In pure, H2O-rich, And CO-rich Ice Analogues'astrobiology.com Broadband Infrared Spectroscopy Of Methanol Isotopologues In pure, H2O-rich, And CO-rich Ice Analogues Deuterium fractionation is highly efficient during the early stages of star formation, particularly…...
A Chemistry-First Centered Icy Chemical Inventory of Protostellar Sources with JWST
6+ day, 6+ hour ago (203+ words) The chemical evolution in star forming regions is driven by the interplay between gas and ice mantles. Identifying the ice compositions at the early stage of star formation thus provides constraints on the chemical processes inaccessible from gas-phase characterizations. As…...