Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.04 nm.s-1 - Thickness = 90 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.04 nm.s-1 - Thickness = 190 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.04 nm.s-1 - Thickness = 280 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.04 nm.s-1 - Thickness = 360 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.04 nm.s-1 - Thickness = 440 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.04 nm.s-1 - Thickness = 520 nm

Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.185 nm.s-1 - Thickness = 210 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.185 nm.s-1 - Thickness = 370 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.185 nm.s-1 - Thickness = 520 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.185 nm.s-1 - Thickness = 670 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 0.185 nm.s-1 - Thickness = 820 nm

Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 1.05 nm.s-1 - Thickness = 918 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 1.05 nm.s-1 - Thickness = 1690 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 1.05nm.s-1 - Thickness = 2450 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 1.05 nm.s-1 - Thickness = 3180 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 1.05 nm.s-1 - Thickness = 3920 nm Spectrum MIR absorbance spectrum of CO ice formed at 25 K with a deposition rate of 1.05 nm.s-1 - Thickness = 4630 nm