[astro-ph.IM] The detection and atmospheric characterization of exoplanets have entered a new data-intensive era driven by the James Webb Space Telescope and the upcoming Ariel mission.
WASP-39b
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Status Report
Effect Of Tidal Gravity And Planetary Rotation On The Retrieved Atmospheric Abundances Of Close-in Exoplanets
Most modern atmospheric retrievals adopt the simplifying assumption that the planetary atmosphere endures no planetary rotation and stellar tidal effect.
![WASP-39b transmission spectra and cloud scenarios. Spectra are observed with JWST (orange), HST (magenta), and VLT (green) in comparison to models with different Fe content: full IWF Graz cloud model (black line), Fe[s] replaced (dark gray), FeS[s] replaced (middle gray), and all Fe-binding materials replaced (light gray). The Fe-free mixed-material cloud compositions provide a good fit in the near-IR but not in the optical. — astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/04/Exoplanet-climate.png?resize=1200%2C718&ssl=1)
Posted inExoplanets, -moons, -comets, Gas Giants, Status Report
Exoplanet Climate Characterization With Transit Asymmetries
Context. Space missions such as CHEOPS, JWST, and PLATO facilitate detailed characterization of exoplanets, particularly close-in gas giants and their wide range of global temperatures and climate regimes.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Information Content Of JWST Transmission Spectroscopy Of The Exoplanet HAT-P-12b From The Optical To The Mid-infrared
Marginal posterior distributions of the chemical abundances for all included molecules, retrieved using different JWST instrument combinations. The shown distributions were derived from the samples via kernel density estimation (KDE; […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Agentic Science Toolkit for Exoplanet Research
The expansion of exoplanet observations has created a need for flexible, accessible, and user-friendly workflows.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
A Closed-Form Analytical Theory of Non-Isobaric Transmission Spectroscopy for Exoplanet Atmospheres
Analytical models are essential for building physical intuition and guiding the interpretation of exoplanet observations by clarifying the dependencies that shape atmospheric signatures.
Posted inAstrochemistry, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Testing The Performance Of Cross-correlation Techniques To Search For Molecular Features In JWST NIRSpec G395H Observations Of Transiting Exoplanets
Cross-correlations techniques offer an alternative method to search for molecular species in JWST observations of exoplanet atmospheres.
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus
The Open-Source Photochem Code: A General Chemical and Climate Model for Interpreting (Exo)Planet Observations
With the launch of the James Webb Space Telescope, we are firmly in the era of exoplanet atmosphere characterization. Understanding exoplanet spectra requires atmospheric chemical and climate models that span […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gas Giants, Habitable Zones, Imaging & Spectroscopy, Status Report
Bridging The Atmospheric Circulations Of Hot And Warm Giant Exoplanets
We perform high-resolution atmospheric flow simulations of hot and warm giant exoplanets that are tidally locked.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Parameter Degeneracies Associated With Interpreting HST WFC3 Transmission Spectra Of Exoplanetary Atmospheres
The Wide Field Camera 3 (WFC3) instrument on the Hubble Space Telescope has provided an abundance of exoplanet spectra over the years. These spectra have enabled analysis studies using atmospheric […]