Speaker
Description
The holistic understanding of exoplanet atmospheres continues to elude us due to the difficulty in acquiring data for these far-away worlds. A wide array of techniques is necessary to probe their components, structure, and interactions. One of these techniques has proven to be particularly effective for large and highly irradiated exoplanets: Ground-based, narrow-band transmission spectroscopy in ultra high-resolution (uHRS, R > 80'000).
In uHRS, transmission spectroscopy allows us to detect the resolved lines of various atomic species, probing various orders of magnitude in pressure. Recently, the use of highly stabilized spectrographs has opened new avenues to extract information about the three dimensional nature of atmospheres: their composition in altitude, their dynamics, and, by proxy, even their magnetic fields. The refinement of uHRS observations and analysis techniques on large and highly irradiated planets as benchmark cases will ultimately help us push towards both smaller and cooler planets with future facilities.
