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Table E.1

Fine-structure and rotational line cooling data

species i j λij (μm) Aij (s−1) collision α β Ref
C+ 157.7 2.29(−6) C+ + H 3.71(−10) 0.15 (1)

C+ + o/p−H2 4.55(−10) 1.60(−10) (2), (3)
C 609.1 7.93(−8) C+ + H 1.01( − 10) 0.117 (4)
C + p−H2 8.00(−11) 0 (5)
C + o−H2 7.50(−11) 0 (5)
230.3 1.71(−14) C+ + H 4.49(−11) 0.194 (4)
C + p−H2 9.00(−11) 0 (5)
C + o−H2 3.54(−11) 0.167 (5)
370.4 2.65(−7) C+ + H 1.06( − 10) 0.234 (4)
C + p−H2 2.00(−11) 0 (5)
C + o−H2 5.25(−11) 0.244 (5)

O 63.2 8.91(5) C+ + H 1.87(−11) 0.539 (6), (7)
O + p−H2 3.46(−11) 0.316 (5)
O + o−H2 2.70(−11) 0.362 (5)
44.1 1.34(−10) C+ + H 2.10(−12) 0.841 (6), (7)
O + p−H2 7.07(−11) 0.268 (5)
O + o−H2 5.49(−11) 0.317 (5)
145.5 1.75(−5) C+ + H 2.52(−10) 0.169 (6), (7)
O + p−H2 1.44(−11) 1.109 (5)
O + o−H2 4.64(−11) 0.976 (5)

Si+ 34.8 2.20(−4) Si+ + H 6.50(−10) 0 (8)

CO, 13CO J + 1 J tabulated CO + o/p−H2 tabulated (9), (10)
OH J, Ω, p J′, Ω′, p′ tabulated OH + H2 tabulated (11), (12)

Notes. a(−b) corresponds to a × 10b. Collision rates are parameterized using the form Cij = αTβ with the exception of the collisions C+ + o/p−H2 which use the formula Cij = α + β exp(−100/T). Collision rates for CO + H2 and OH + H2 are interpolated based on tabulated data. J is the rotational angular momentum quantum number, Ω is the projection of J on the inter-nuclear axis, p is the parity.

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