Emission measurements in a high temperature boundary layer spanning the ultraviolet to the infrared are presented. The boundary layer is studied after a high enthalpy flow supplied by a plasma torch facility flows around an ablative sample. The experimental configuration is intended to serve as a model of an afterbody flow. The infrared measurements yield estimates of the carbon monoxide ground state concentration present within the boundary layer due to ablation. They also provide a measure of the carbon monoxide rovibrational temperature. These are compared with ultraviolet measurements spanning 190-250 nm. Preliminary evidence of CO 4th positive emission is observed in this spectral region. Atomic carbon emission is observed near the stagnation point, but is weak within the boundary layer due to the relatively low temperature.