National Centre of Competence in Research PlanetS
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Extreme atmospheres

Scientific goal

Hot gas giants are the easiest exoplanets to detect and the most amenable planets to retrieve atmospheric properties from. However, they receive so much irradiation from their host stars, that they raise many questions about how extreme planetary climates can be. As such, the recently detected population of “ultrahot” gas giants act as a unique laboratory for atmospheric sciences. This project aims at gaining insights into these extreme atmospheres, combining the wealth of data coming from ground-based high-resolution spectrographs (ESPRESSO, HARPS+NIRPS) and space-borne instrument (CHEOPS, HST, JWST) with global climate models.

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