Paper day! You're doing ground-based high-resolution exoplanet transmission spectroscopy and want to analyse the planet—not the star or Earth's atmosphere. Is there a way to disentangle your spectrum *without* destroying the planet signal? arxiv.org/abs/2509.12737 🧵⬇️ 🔭 #exoplanets #astromethods

Do you love WASP-107 b? Do you love making use of *both* ground VLT + space JWST obs to detect molecules in a "warm" (Teq<800K) #exoplanet in transmission, even in a crazy confusing cloudy atmosphere?! 🚨 It's PAPER* DAY! Which means #scicomm thread! 🧵⬇️🔭🪐🧪 *pre-print! arxiv.org/abs/2508.18964

<skeets into room at full speed> Hi astro bluesky—it's paper day! I dove into optical M/K dwarf spectra—rife with molecules as they are—& found success with a data-driven 🌈 model (i.e. ML) vs physical models. 1) 🟦🌈 recovery 😌 2) 🟥🌈 recovery 😌 3) Physical model vs ML 🙃 arxiv.org/abs/2402.14639 🔭