Predicted spectrum of CO based on the photospheric model Cc2640c521 and log A_C = −3.550 (table 6) but disregarding the H₂ CIA (blue/black solid line) is compared with that based on the same model and log A_C but including the H₂ CIA (light sky/gray solid line). The observed spectrum of GJ 752B is shown by filled circles. (Color online)