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.
astro-ph.EP]
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.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Scaling K2 VIII: Short-Period Sub-Neptune Occurrence Rates Peak Around Early-Type M Dwarfs
We uniformly combined data from the NASA Kepler and K2 missions to compute planet occurrence rates across the entire FGK and M dwarf stellar range.
Posted inAstrogeology, Enceladus, Europa, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
Slantwise Convection And Heat Transport In The Icy Moon Oceans
Ocean heat transport on icy moons shapes the ice shell topography, a primary observable of these moons. Two key processes control the heat transport: baroclinic instability driven by surface buoyancy […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Space Weather & Heliophysics, Status Report
Studying The Variability Of The He Triplet To Understand The Detection Limits Of Evaporating Exoplanet Atmospheres
With more than a dozen significant detections, the helium triplet has emerged as a key tracer of evaporating exoplanet atmospheres.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biosignatures & Paleobiology, Icy Worlds, Imaging & Spectroscopy, Interstellar, Status Report
Assessing Interstellar Comet 3I/ATLAS With The 10.4 m Gran Telescopio Canarias And The Two-meter Twin Telescope
Context. Theories of the formation and evolution of small bodies in planetary systems predict that they may escape into interstellar space at any time.
Posted inAstrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Status Report
X-SHOOTER Spectrum Of Comet C/2025 N1 (3I/ATLAS): Insights Into A Distant Interstellar Visitor
Comets are primitive remnants of the early Solar System whose composition offers fundamental clues to their formation and evolution. High-resolution, broad-wavelength spectroscopy is crucial for identifying volatile species and constraining […]