Séminaire IPAG

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A High Resolution View of Exoplanet Atmospheres

jeudi 21 novembre 2024 - 11h00

Jane Birkby - Oxford University
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In our search for a second Earth, we have uncovered an extraordinary and diverse set of outcomes from the star-planet formation process, revealing an eclectic zoo of other worlds spanning wide temperature and mass regimes. While exoplanet hunters continue the search for the nearest Earth twins, our last decade of study has pushed to understand the atmospheres of these new planets, and how their climate physics and chemistry respond to the environment created by their parents stars. In this talk, I will demonstrate how new instrumentation, high in spectral and spatial resolution and contrast, enables powerful and highly versatile analysis tools that are advancing our understanding of the 3D nature of exoplanet atmospheres. These tools in the era of the Extremely Large Telescopes (ELTs) will mark a step change, breaking into the regime of rocky exoplanet characterization, with the potential to explore their atmospheres, and even their surfaces, in great detail across their diverse population, from outgassing lava worlds to biosignatures on habitable worlds. I will discuss the preparation we are doing now for first light, pushing into the sub-Neptune regime, and end with a discussion on the synergy needed between ELTs, JWST, HWO, and LIFE to enable the fullest exploration of rocky exoplanets in the coming decades.

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Hôtes : Mickael Bonnefoy

Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères