Surface temperature (left column), the interface temperature (middle column), and the vapor pressure (right column) as a function of the layer thickness at the heliocentric distance R_H = 3.4 AU. Results are plotted for water (top row), carbon dioxide (middle row), and carbon monoxide (bottom row) ices. Aggregate radii are shown on the curves. The horizontal lines indicate the blackbody temperature (left column), the bare ice temperature (middle), and the corresponding saturation pressure (right).