First mid-IR transmission spectrum of TOI-270 d shows molecular features with Bayesian evidence ln B = 2.8-5.3 and identifies candidate trace molecules from an agnostic search of 203 species.
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First statistically significant detection of dayside silicate clouds on a Neptunian-mass exoplanet, with CO and CO2 detections and C/O ratio of 0.984 from JWST spectra.
Photochemical kinetic-transport models indicate CS2 abundance in gas giant exoplanets peaks at Teq 500-700 K through CH4-H2S chemistry with S2 photolysis as the driver.
Tier 1 Ariel spectra suffice for sub-1.5 dex constraints on H2O and CO2 in giant-planet atmospheres, with higher tiers providing only incremental gains and more molecules in select cases.
WASP-96b shows super-solar metallicity of 2-6x stellar, roughly stellar C/O, tentative SO2 consistent with photochemistry, and an optical slope from scattering aerosols, supporting core-accretion formation beyond the water snowline.
Adapts and benchmarks a 1D plume model to predict volcanic plume heights across varied exoplanet gravities, compositions, and stratifications, identifying detectable low-pressure penetration regimes.
The paper reviews physical processes, modeling techniques, retrieval methods, and observational strategies for characterizing exoplanet atmospheres, emphasizing Swiss research progress.
citing papers explorer
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The Mid-Infrared Transmission Spectrum of the Temperate Sub-Neptune TOI-270 d
First mid-IR transmission spectrum of TOI-270 d shows molecular features with Bayesian evidence ln B = 2.8-5.3 and identifies candidate trace molecules from an agnostic search of 203 species.
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Glossy Silicate Clouds on the Scorched Dayside of LTT9779b
First statistically significant detection of dayside silicate clouds on a Neptunian-mass exoplanet, with CO and CO2 detections and C/O ratio of 0.984 from JWST spectra.
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Photochemical Production of CS2 in Temperate-to-Warm Gas Giant Exoplanet Atmospheres
Photochemical kinetic-transport models indicate CS2 abundance in gas giant exoplanets peaks at Teq 500-700 K through CH4-H2S chemistry with S2 photolysis as the driver.
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On the Information Content of Ariel Transmission Spectra: Reassessing the Tier System
Tier 1 Ariel spectra suffice for sub-1.5 dex constraints on H2O and CO2 in giant-planet atmospheres, with higher tiers providing only incremental gains and more molecules in select cases.
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Super-Solar Metallicity and Tentative Evidence for Photochemistry on WASP-96b from JWST and Ground-Based VLT Transmission Spectroscopy
WASP-96b shows super-solar metallicity of 2-6x stellar, roughly stellar C/O, tentative SO2 consistent with photochemistry, and an optical slope from scattering aerosols, supporting core-accretion formation beyond the water snowline.
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Modeling Volcanic Plume Heights Across Exoplanet Atmospheres: Insights from TRAPPIST-1
Adapts and benchmarks a 1D plume model to predict volcanic plume heights across varied exoplanet gravities, compositions, and stratifications, identifying detectable low-pressure penetration regimes.
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NCCR PlanetS: Observational and computational characterization of exoplanet atmospheres
The paper reviews physical processes, modeling techniques, retrieval methods, and observational strategies for characterizing exoplanet atmospheres, emphasizing Swiss research progress.
- A Search for Wide-orbit Planets Around M-dwarfs using Deep MIRI 15-micron Images