University of Montreal
The Cold Worlds Spectral Library — This project will use JWST/NIRSpec and MIRI to obtain high-precision spectra of 14 cold (250 – 500 K) brown dwarfs, creating the first comprehensive “cold world spectral library”. Combined with archival data, it will establish benchmark atmospheric properties – tracing clouds, chemistry, mixing, and auroral processes. This will help guide interpretation of upcoming JWST detections of cold, directly imaged exoplanets and advance comparative planetology across planets and brown dwarfs.