Origin and Extent of the Opacity Challenge for Atmospheric Retrievals of WASP-39 b

As the James Webb Space Telescope (JWST) came online last summer, we entered a new era of astronomy. This is supported by data products unprecedented information content that require novel reduction and analysis techniques. Recently, Niraula et al. 2022 (N22) highlighted need for upgraded opacity models to prevent facing model-driven accuracy wall when interpreting exoplanet transmission spectra. Here, follow same approach as N22 explore sensitivity inferences on atmospheric properties WASP-39 b used. We find retrieval main from this first JWST spectrum mostly unaffected current state community's models. Abundances strong sources like water carbon dioxide are reliably constrained within $\sim$0.30 dex, beyond 0.50 dex reported in N22. Assuming completeness line lists, N22's primarily driven model uncertainties broadening coefficients far-wing behaviors, which have marginal consequences spectra large, hot, high-metallicity atmospheres such b, opposition emission climate modeling depend deeper parts planetary atmosphere. The origin challenge metal-rich hot Jupiters via spectroscopy will thus stem incompleteness inaccuracy lists.