Spatial distribution of abundances of selected species at three selected times in simulation. Red, blue, and black curves show the spatial distribution of abundances at ~1.5 × 10⁵ yr, ~2.5 × 10⁵ yr, and the peak abundance, respectively. Peak abundance is the max abundance during the warm-up and post-warm-up phases. Here, we considered the initial dust temperature of 15 K. Green dotted (at 2580 AU), green dashed (at 12 900 AU), and pink dashed (at 17 200 AU) lines represent the highest spatial resolution (0.3″) and the moderate resolution (1.5″) of Rolffs et al. (2011b), and our resolution (2″), respectively. Pink horizontal bar represents observed abundance range.