LM model with 10⁶ yr static phase and $A_{\mathrm{v},\mathrm{e}\mathrm{f}\mathrm{f}}^{\mathrm{a}\mathrm{m}\mathrm{b}}$ = 2 mag (#3 LM). Top : integrated intensity levels for CH₃ OH (white contours) and c-C₃ H₂ (red contours) along the three principal axes of the simulation. The color map shows the continuum emission at 1.1 mm. Middle : slice plot showing the local log A_v,eff for each principal axes. The upper range of the color map is limited to 10 mag for clarity. Bottom : slice plot showing the local dust temperature for each principal axes. The red and black contours show the 10 K and 7 K limits, respectively.