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Table 3

Predicted [C I] brightness temperatures (4), calculated with RADEX for various temperatures (1) and densities (2) for the blueshifted velocity component.

T(K) (cm−3) NCI (cm−2) Tmb (K)
(1) (2) (3) (4)
Ambient cloud

20 5 × 102 1016 1.0
20 7.5 × 102 1016 1.2

Warm gas layer

60 7 × 103 9 × 1014 0.16
90 7 × 103 9 × 1014 0.15

Notes. This indicates a [C I] column density (3) of ~1016 cm−2 for the ambient cloud, while the contribution from the warm gas layer to the observed [C I] emission is negligible.

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