HCNH+ abundance in cold dense clouds based on the first hyperfine resolved rate coefficients

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Fig. 3.

Lines of HCNH⁺ in TMC-1 (j₁ = 1 → 0 and j₁ = 2 → 1 in the left panels) and L483 (j₁ = 1 → 0 in the right panel). Black histograms correspond to the observed line profiles, while the red lines correspond to the synthetic line profile calculated with the LVG model (see text).

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