SMuK 2021 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 5: Exoplanets and Astrobiology I

EP 5.1: Hauptvortrag

Mittwoch, 1. September 2021, 16:30–17:00, H9

Planets are Places: Characterization of Other Worlds in the 2020s and Beyond — •Laura Kreidberg — Max Planck Institute for Astronomy, Königstuhl 17, 69117 Heidelberg

The past 25 years have revealed a diversity of exoplanets far beyond what was imagined from the limited sample in the Solar System. With new and upcoming observing facilities and a rapidly growing number of nearby planets, we are poised to bring this diversity into focus, with detailed follow-up characterization of the planets' atmospheres. In this talk, I will discuss frontier questions in exoplanet atmosphere characterization, including: what can we learn about a planet's formation conditions from its present-day atmosphere composition? Where is the dividing line between rocky and gaseous worlds? How are climate, atmospheric circulation, and cloud properties affected by the planet's irradiation environment? And finally, under what conditions do terrestrial planets maintain their atmospheres? Finally, I will conclude with my outlook on the search for biosignatures in the atmospheres of inhabited worlds.