A Python port of a classic volcanic plume model is applied to exoplanet conditions, identifying parameter regions where plumes reach low-pressure altitudes and become potentially detectable.
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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.
Archival MIRI imaging reaches contrasts of 10^-3 to 10^-4 at 1-3 arcseconds, enabling detection of ~170 K Jupiter-sized planets at separations >35 AU around M-dwarfs at 12.5 pc, with no new planets found but useful sensitivity maps produced.
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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Modeling Volcanic Plume Heights Across Exoplanet Atmospheres: Insights from TRAPPIST-1
A Python port of a classic volcanic plume model is applied to exoplanet conditions, identifying parameter regions where plumes reach low-pressure altitudes and become potentially detectable.
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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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A Search for Wide-orbit Planets Around M-dwarfs using Deep MIRI 15-micron Images
Archival MIRI imaging reaches contrasts of 10^-3 to 10^-4 at 1-3 arcseconds, enabling detection of ~170 K Jupiter-sized planets at separations >35 AU around M-dwarfs at 12.5 pc, with no new planets found but useful sensitivity maps produced.
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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.