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

Open Access

Fig. B.1

Inconsistency of the rate coefficient of H₂ + C₂ → C₂H + H between KIDA (blue) and NIST (red) database, coming from a different initial state of C₂: the rate coefficient of NIST (Kruse & Roth 1997) corresponds to the triplet state a³Π_u according to Pasternack et al. (1981).

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