Image Details
Caption: Figure 6.
Publicly available SPHEREx spectrum (black circles) of the notable UCD TRAPPIST-1, overlaid with two JWST/NIRSpec-PRISM observations from 2022 (blue and purple lines). The SPHEREx data agree with both JWST spectra, but show systematic tension with the 2600 K cloudless (orange) and cloudy (pink) SPHINX models. These data demonstrate the potential for SPHEREx to inform models of UCDs.
© 2026. The Author(s). Published by the American Astronomical Society.