Joint Seminar: Unlocking the atmospheric properties of cloudy, directly imaged exoplanets

Over 5000 extrasolar planets have been discovered as of early 2022. However, the majority of these planets have not been detected by imaging them directly.

In my talk I will thus begin by summarizing the - often indirect - methods that allow astronomers to detect exoplanets, and the kind of planets they are most sensitive to. Next, I will show how the atmospheric properties of these planets can be probed, and how the atmospheric composition could constrain how exoplanets form. The last topic will cover those, currently still rare, exoplanets which can actually be directly imaged. For these I will discuss how we combine the world’s most sensitive telescopes to extract atmospheric abundance measurements, and how clouds present a challenge in the interpretation of their spectra. I will end by giving an outlook on how the recently-launched James Webb Space Telescope will transform the field of exoplanet atmospheric research. I will also discuss how instruments in the future may constrain the properties of planets in the habitable zone around their stars.

Date

13.04.2022

Time

13:30 h

Place

Bundesstr. 53, room 22/23, virtual seminar
Hamburg

Speaker

Paul Mollière, Max-Planck-Institut für Astronomie

Organizers

Diego Jiménez-de-la-Cuesta Otero

Back to listing