Seminar: Interpreting transmission spectra of exoplanet atmospheres… and more
- Date
- 27 February 2025, 14:00–15:00
- Location
- Ångström Laboratory, 2005Å
- Type
- Seminar
- Lecturer
- Aline Novais, Lund University
- Organiser
- Division of Astronomy and Space Physics, Department of Physics and Astronomy
- Contact person
- Simon Barton
In this talk I will present my latest work developed during my PhD on retrievals of exoplanet atmospheres from space-based Hubble Space Telescope (HST) and James Webb Space Telescope (JWST) transmission spectra. I will talk about our main findings, which include degeneracies between retrieved parameters (H2O abundance, temperature, and cloud-top pressure) and how these retrieved parameters strongly depend on model properties and on data reduction pipelines. I will also cover part of my work being currently developed at Lund University on the analysis of possible exocomet features in HARPS data from a young planetary system, establishing a link between the study of exoplanet structure and formation. I also aim to highlight some of the additional studies being done at the Exoplanets group at Lund University.
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We shall leave for lunch at around 12:15. There will be fika (with semlor) after the seminar.