- Nice to see this research note on K2-18b from @astrojake.bsky.social, which demonstrates that a flat line (i.e. no spectral features) is a good fit to the MIRI data. #exoplanet 🪐 🔭 arxiv.org/abs/2504.15916Apr 23, 2025 13:16
- Of the models tested, only two Gaussians centred on fixed wavelengths (7 um and 8.8 um) provides a small improvement over a flat line. This is 'weak evidence' (B = 3.35, see below) in favour of the fixed Gaussian model, so no statistically significant detection of molecules in the MIRI data.