Dust emission for the DHGL medium. Grey symbols and curves indicate the observed emission spectrum (see Sect. 4.1) for N_H = 10²⁰ H cm^-2. The mid-IR (~5−15   μm) and far-IR (~100−1000   μm) spectra are from ISOCAM/CVF (ISO satellite) and FIRAS (COBE satellite), respectively. The triangle at 3.3 μm is a narrow band measurment from AROME balloon experiment. Squares are the photometric measurments from DIRBE (COBE). Black lines are the model output and black squares the modeled DIRBE points taking into account instrumental transmission and color corrections.