
TL;DR
This paper discusses the prevalence of aerosols and patchy clouds in hot Jupiter atmospheres, emphasizing the need for advanced models to interpret upcoming high-resolution observations from the James Webb Space Telescope.
Contribution
It highlights the importance of accounting for variable and patchy cloud coverage in exoplanet atmospheric models, preparing for future JWST data analysis.
Findings
Aerosols are common in hot Jupiter atmospheres.
Temperature variation leads to patchy cloud cover.
Preparation of models for JWST data analysis.
Abstract
In recent years, a vast increase in spectroscopic observations of transiting exoplanets has for the first time allowed us to search for broad trends in their atmospheric properties. Analysis of these observations has revealed that, even for the highly irradiated hot Jupiters, aerosol is a common presence and must be accounted for in modelling efforts. An additional challenge for hot Jupiters is the large variation in temperature across the planet, which is likely to result in partial or patchy cloud cover. As our observational capability is due to increase further with the launch of the James Webb Space Telescope, anticipated in autumn 2021, community efforts are underway to prepare modelling and analysis tools capable of recovering information about variable and patchy cloud coverage on hot exoplanets
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