Peak sugar abundances in the post-UV phase for different temperatures when r_run = 10⁵. We use fiducial starting materials. Panel a shows the dependence on temperature of the UV phase when T_p = 300 K, and panel b shows the dependence on temperature of the post-UV phase when T_U = 10⁵ K. The gray dashed line and black solid line are for 4-C and 5-C sugars, respectively. Red lines indicate the positions of the fiducial temperatures.