Top panel: extinction curves for the different aerosol modes used for the wavelength range of X-shooter (0.3 to 2.1 μm). Bottom panel: phase function as a function of scattering angle for each aerosol mode used at two different wavelengths, 0.5 (solid) and 1.5 (dashed) μm. Both the extinction curves and phase functions were calculated assuming the Mie approximation and were calculated based on the distribution for each aerosol mode with the default values given in Table 2.