The aim of this project was to perform retrieval analysis for a set of young, (<150 Myr), cloudy, low surface gravity planetary-mass objects that are analogs of directly imaged exoplanets (e.g. HR 8799bcde). The goal was to probe and further understand their formation pathways (via C/O ratios). As we performed the retrieval results, we found consistent difficulty in the retrieval constraints regardless of the signal to noise of the two objects and thermal profile parameterization used. A highlight was that the retrieval analysis was able report that the data strongly favored cloud models over cloudless models; consistent with the red and variable nature of the objects. Ultimately, we found continued evidence of missing information in the models and further evidence for JWST is needed to guide and inform retrieval analysis in this regime.
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