Chemistry and IR emission of acetylene in planet-forming regions of T Tauri disks - Impact of elemental abundances and dust properties

Open Access

Fig. 9

Vertical column densities at r = 0.15 au for hydrocarbons. The total vertical column density is shown in blue. The red dots represent the emitting column density (above the surface τ_dust = 1 at 14 μm and T_gas > 500 K). While CH₄ is the major hydrocarbon, C₂H₂ is dominant in the emitting layers.

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