Context: With no conclusive detection to date, the search for exomoons, satellites of planets orbiting other stars, remains a formidable challenge. Detecting these objects, compiling a population-level sample and constraining […]
astro-ph.EP]
Posted inAstronomy & Telescopes, Biogeochemical Cycles & Geobiology, Epsilon Eridani, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Direct Imaging For The Debris Disk Around epsilon Eridani With The Cool-Planet Imaging Coronagraph
We analyze the inner debris disk around ϵ Eridani using simulated observations with the Cool-Planet Imaging Coronagraph (CPI-C).
Posted inAstrochemistry, Astrogeology, Exoplanets, -moons, -comets, Meteorites & Asteroids, Planetary Protection & Biosafety, Status Report
Infall And Disk Processes – The Message From Meteorites
How do planetary systems, in general, and our own Solar System (SS), in particular, form? In conjunction, Astronomy and Isotope Cosmochemistry provide us with powerful tools to answer this age-old […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Status Report, TRAPPIST-1, Water/Hycean Worlds & Oceanography
JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e
TRAPPIST-1 e is one of the very few rocky exoplanets that is both amenable to atmospheric characterization and that resides in the habitable zone of its star — located at […]
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Habitable Zones, Icy Worlds, Impact events, Status Report, Water/Hycean Worlds & Oceanography
Isotopic Composition Of Cometary Water And The Origin Of Earth’s Oceans
Studies of the water content and isotopic composition of water-rich asteroids and comets are of key interest for understanding the late accretion stage of the Solar System cometary and chondritic […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
TIRAMISU: Non-LTE Radiative Transfer For Molecules In Exoplanet Atmospheres
The TIRAMISU code, a new program for computing on-the-fly non-LTE molecular spectra and opacities for solving self-consistent radiative transfer problems in exoplanet atmospheres, is presented.
Posted inAstrogeology, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The JWST Rocky Worlds DDT Program Reveals GJ 3929b To Likely Be A Bare Rock
We report first results from the JWST Rocky Worlds Director’s Discretionary Time program. Two secondary eclipses of the terrestrial exoplanet GJ 3929b were recently observed using MIRI photometric imaging at […]
Posted inAstrochemistry, Astrogeology, Icy Worlds, Imaging & Spectroscopy, Status Report
Evidence For Ultra-water-rich Ammonia Hydrates Stabilized In Icy Exoplanetary Mantles
Understanding the behavior of the water-ammonia system at high pressure-high temperature conditions is important for modeling the internal dynamics of exoplanet icy mantles.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report
Detection Of CO2, CO, and H2O In The Atmosphere Of The Warm Sub-Saturn HAT-P-12b
The chemical composition of warm gas giant exoplanet atmospheres (with Teq < 1000 K) is not well known due to the lack of observational constraints. HAT-P-12 b is a warm, […]
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Icy Worlds, Status Report
Cosmic Cascades: How Disk Substructure Regulates The Flow Of Water To Inner Planetary Systems
The influx of icy pebbles to the inner regions of protoplanetary disks constitutes a fundamental ingredient in most planet formation theories.