1D case of thermal inversion (10 bar, N₂+40% CH₄+0.4%CO₂). Left: opacity of the atmosphere with the zone of emission of the star and the planet. Middle: temperature profile and the layers of emission of the atmosphere at 15 µm. Right: eclipse depth. The methane absorbs partly in the star-emission region, creating the thermal inversion in the temperature profile. The CO₂ absorbs in the 15 µm band, and thus the emission layers at 15 µm are high enough in the atmosphere, where the temperature is high. Thus, the eclipse depth is higher.