Herschel/HIFI spectral line survey of the Orion Bar - Temperature and density differentiation near the PDR surface

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Table 1

Inelastic collision data used for the RADEX modelling.

Molecule	E_max	T (K)	Collision	Reference
	(cm^-1)		partner

CF⁺	188	10–300	H₂^a	Ajili & Hammami (2013)
CH	1001	10–300	H₂^a	Marinakis et al. (2015)
o–H₂CO	207	10–300	H₂	Wiesenfeld & Faure (2013)
o–NH₃	420	15–300	p–H₂	Danby et al. (1988)
NO	375	5–300	H₂^a	Lique et al. (2009)
SO	676	60–300	H₂	Lique et al. (2006a)
HCO⁺	1381	10–400	H₂	Flower (1999)
CS	759	10–300	H₂^a	Lique et al. (2006b)
[Ci]	44	10–1200	p–H₂	Schröder et al. (1991)
o–H₂S	1400	5-1500	p–H₂^b	Dubernet et al. (2009)
CN	793	5–300	H₂^a	Lique et al. (2010)
HCN	960	5–500	H₂^a	Dumouchel et al. (2010)
C¹⁷O	3058	2–3000	p–H₂	Yang et al. (2010)
C¹⁸O	2988	2–3000	p–H₂	Yang et al. (2010)
¹³CO	2999	2–3000	p–H₂	Yang et al. (2010)
CO	3137	2–3000	p–H₂	Yang et al. (2010)

Notes.

^(a)

Scaled using rates with He.

^(b)

Scaled from o–H₂O–p–H₂, assuming thermal o/p for H₂.

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