Table A.2
Heating/cooling rates.
| Process | Rate | Reference | |
|
|
|||
| Heating/Cooling | |||
|
|
|||
| Collisional excitation cooling |
|
AZAN96 | |
|
|||
|
|||
| Collisional ionization cooling | 2.18 × 10-11k1nenH | AZAN96 | |
| 2.18 × 10-11k1nenH | |||
| 3.94 × 10-11k3nenHe | |||
|
|||
|
|||
| Recombination cooling |
|
AZAN96 | |
|
|||
|
|||
|
|||
| Bremsstrahlung cooling |
|
AZAN96 | |
| Compton cooling | 5.65 × 10-36(1 + z)4 [T − 2.75(1 + z)]ne | AZAN96 | |
| Molecular hydrogen cooling | see reference | GP98 | |
| HD cooling | see reference | LNA05 | |
| H2 Photodissociation heating | AAZ97 | ||
| Solomon process | Γ = 6.4 × 10-13H2k27 | ||
| Direct heating |
|
||
| Gas-phase H2 formation heating |
|
GJ07 | |
| H2 Collisional dissociation cooling | Λ = 7.2 × 10-12(k9nH + k10nH2)nH2 | GJ07 | |
| Cooling from electronic states of hydrogen | see reference | SSG10 | |
Notes. T denotes the gas temperature in Kelvin, Tn the gas temperature in 10n, Tr the temperature of radiation in K. dex(x) = 10x.
References. Acronyms: AAZN97: Abel et al. (1997); GJ07: Glover & Jappsen (2007); GP98: Galli & Palla (1998); AZAN96: Anninos et al. (1996); LNA05: Lipovka et al. (2005); SSG10: Schleicher et al. (2010).
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