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Martin Binet
Wednesday 11 March 2026, 13:15-13:40
A systematic analysis of exoplanet transmission spectra with JWST-MIRI
- đ¤ Speaker: Martin Binet
- đ Date & Time: Wednesday 11 March 2026, 13:15 - 13:40
- đ Venue: Hoyle Lecture theatre + Zoom
Abstract
The launch of JWST has enabled atmospheric characterisation of sub-Neptunes more precise than ever. Specifically, its MIRI instrument allows to look for extra absorbers that are hard to find in the near-infrared. Recently this has been showed on temperate sub-Neptunes K2-18 b and TOI -732 c, with potential signs of complex molecules, although the significance of these results has been contested in subsequent works. According to these, the findings could be due to instrument systematics, or even mere random noise. In this context, we aim to disentangle these possibilities by looking at multiple MIRI transit observations, and check whether complex molecules are also found in other planets like hot gas giants.
Series This talk is part of the Institute of Astronomy Seminars series.
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