Rocky Worlds in High Spectral Resolution

High resolution cross-correlation spectroscopy (HRCCS) has proven a powerful and highly versatile tool in the characterization of exoplanet atmospheres. Its sensitivity to the position and shape of exoplanet spectral lines has enabled a rich exploration of exoplanet atmospheres over the last decade, from chemical abundances to the 3D dynamical nature of their winds and rotation. The era of the Extremely Large Telescopes (ELTs) will mark a step change for HRCCS, breaking into the regime of rocky exoplanets, with the potential to explore their atmospheres, and even their surfaces, in great detail across their diverse population, from outgassing lava worlds to biosignatures on habitable worlds. In this talk, I will give an overview of the rocky exoplanet science achievable with HRCCS using the first light and next generation instruments on the ELTs, beginning in 2029, highlighting several simulation studies that are vital in preparing us for this work. I will further…