Table B.1: Collisional and radiative rates.
Reaction number Reaction Rate [cgs] Reference
1 ${\rm H}$+${\rm e}$ $\rightarrow$ ${\rm H}^-$+$\gamma$ $1.4\times10^{-18}T^{0.928}{\rm exp}(-T/16200)$ GP98
2 ${\rm H}^-$+${\rm H}$ $\rightarrow$ ${\rm H}_2$+${\rm e}$ $1.5\times10^{-9}$ for T<300 GP98
    $4.0\times10^{-9}T^{-0.17}$ for T>300 GP98
3 ${\rm H}$+${\rm H}^+$ $\rightarrow$ ${\rm H}_2^+$ +$\gamma$ ${\rm dex}(-19.38-1.523\log_{10}(T)+1.118\log_{10}^2(T)-0.1269\log_{10}^3(T))$ GP98
4 ${\rm H}_2^+$+${\rm H}$ $\rightarrow$ ${\rm H}_2$+${\rm H}^+$ $6.4\times10^{-10}$ GP98
5 2${\rm H}$+${\rm H}$ $\rightarrow$ ${\rm H}_2$+${\rm H}$ $5.5\times10^{-29}T^{-1}$ PSS83
6 ${\rm H}_2$+${\rm H}^+$ $\rightarrow$ ${\rm H}_2^+$+${\rm H}$ see reference SKHS04b
7 ${\rm H}_2$+${\rm e}$ $\rightarrow$ 2${\rm H}$+${\rm e}$ $1.91\times10^{-9}T^{0.136}{\rm exp}(-53407.1/T)$ TT02
8 ${\rm H}_2$+${\rm H}$ $\rightarrow$ 3${\rm H}$ Fit to data of MSM96 MSM96
9 ${\rm H}^-$+${\rm e}$ $\rightarrow$ ${\rm H}$ +2${\rm e}$ see reference AAZN97
10 ${\rm H}^-$+${\rm H}$ $\rightarrow$ 2${\rm H}$+${\rm e}$ see reference AAZN97
11 ${\rm H}^-$+${\rm H}^+$ $\rightarrow$ 2${\rm H}$ $1.40\times10^{-7}(T/300)^{-0.487}{\rm exp}(T/29300)$ LSD02
12 ${\rm H}^-$+${\rm H}^+$ $\rightarrow$ ${\rm H}_2^+$+${\rm e}$ $6.9\times10^{-9}T^{-0.35}$ for T<8000 GP98
    $9.6\times10^{-7}T^{-0.9}$ for T>8000 GP98
13 ${\rm H}_2^+$+${\rm e}$ $\rightarrow$ 2${\rm H}$ $2.0\times10^{-7}T^{-0.5}$ GP98
14 ${\rm H}_2^+$+${\rm H}^-$ $\rightarrow$ ${\rm H}$ +${\rm H}_2$ $5\times10^{-6} T^{-0.5}$ for T>100 AAZN97
15 ${\rm H}_2$+${\rm e}$ $\rightarrow$ ${\rm H}$+${\rm H}^-$ $3.67\times10^{1}T^{-2.28}{\rm exp}(-\frac{47172}{T})$ CCDL07
16 ${\rm H}^-$+$\gamma$ $\rightarrow$ ${\rm H}$+${\rm e}$ $1.1\times10^{-1}T_{\rm r}^{2.13}{\rm exp}(-8823/T_{\rm r})$ GP98
17 ${\rm H}_2^+$+$\gamma$ $\rightarrow$ ${\rm H}$+${\rm H}^+$ $1.63\times10^7{\rm exp}(-32400/T_{\rm r})$ GP98
18 ${\rm H}_2$+$\gamma$ $\rightarrow$ ${\rm H}_2^+$+${\rm e}$ $2.9\times10^2T_{\rm r}^{1.56}{\rm exp}(-178500/T_{\rm r})$ GP98
19 ${\rm H}_2^+$+$\gamma$ $\rightarrow$ 2${\rm H}^+$+${\rm e}$ $9.0\times10^1T_{\rm r}^{1.48}{\rm exp}(-335000/T_{\rm r})$ GP98
20 ${\rm H}_2$+$\gamma$ $\rightarrow$ $\left({\rm H}_2\right)^*\rightarrow 2{\rm H}$ $1.13\times10^6 T_{\rm r}^{0.369}{\rm exp}(-140000/T_{\rm r})$ GJ07
21 ${\rm D}^-$+$\gamma$ $\rightarrow$ ${\rm D}$+${\rm e}$ estimated by rate 16  
22 ${\rm HD}^+$+$\gamma$ $\rightarrow$ ${\rm D}$+${\rm H}^+$ estimated by half of rate 17  
23 ${\rm HD}^+$+$\gamma$ $\rightarrow$ ${\rm H}$+${\rm D}^+$ estimated by half of rate 17  
24 ${\rm HD}^+$+$\gamma$ $\rightarrow$ ${\rm H}^+$+${\rm D}^+$+${\rm e}$ estimated by rate 19  
25 ${\rm HD}$+$\gamma$ $\rightarrow$ ${\rm HD}^+$+${\rm e}$ estimated by rate 18  
26 ${\rm D}^+$+${\rm e}$ $\rightarrow$ ${\rm D}$ +$\gamma$ $3.6\times10^{-12}(T/300)^{-0.75}$ SLD98
27 ${\rm D}$+${\rm H}^+$ $\rightarrow$ ${\rm D}^+$+${\rm H}$ $2\times10^{-10}T^{0.402}{\rm exp}(-37.1/T)-3.31\times10^{-17}T^{1.48}$ Savin (2002)
28 ${\rm D}^+$+${\rm H}$ $\rightarrow$ ${\rm D}$+${\rm H}^+$ $2.06\times10^{-10}T^{0.396}{\rm exp}(-33.0/T)+2.03\times10^{-9}T^{-0.332}$ Savin (2002)
29 ${\rm D}$+${\rm H}$ $\rightarrow$ ${\rm HD}$+$\gamma$ see reference Dickinson (2008,2005)
30 ${\rm D}$+${\rm H}_2$ $\rightarrow$ ${\rm HD}$+${\rm H}$ $1.69\times10^{-10}{\rm exp}(-4680/T+198800/T^2)$ for T>200 GP02
    $9.0\times10^{-11}{\rm exp}(-3876/T)$ for T<200 GP98
31 ${\rm HD}^+$+${\rm H}$ $\rightarrow$ ${\rm HD}$+${\rm H}^+$ $6.4\times10^{-10}$ SLD98
32 ${\rm D}^+$+${\rm H}_2$ $\rightarrow$ ${\rm HD}$+${\rm H}^+$ $1.0\times10^{-9}(0.417+0.846\log_{10}(T)-0.137\log_{10}^2(T))$ GP02
33 ${\rm HD}$+${\rm H}$ $\rightarrow$ ${\rm D}$+${\rm H}_2$ $5.25\times10^{-11}{\rm exp}(-4430/T+173900/T^2)$ for T>200 GP02
    $3.2\times10^{-11}{\rm exp}(-3624/T)$ for T<200 GP98
34 ${\rm HD}$+${\rm H}^+$ $\rightarrow$ ${\rm D}^+$+${\rm H}_2$ $1.1\times10^{-9}{\rm exp}(-488/T)$ GP02
35 ${\rm D}$+${\rm H}^+$ $\rightarrow$ ${\rm HD}^+$+$\gamma$ ${\rm dex}(-19.38-1.523\log_{10}(T)+1.118\log_{10}^2(T)-0.1269\log_{10}^3(T))$ GP98
36 ${\rm D}^+$+${\rm H}$ $\rightarrow$ ${\rm HD}^+$+$\gamma$ ${\rm dex}(-19.38-1.523\log_{10}(T)+1.118\log_{10}^2(T)-0.1269\log_{10}^3(T))$ GP98
37 ${\rm HD}^+$+${\rm e}$ $\rightarrow$ ${\rm D}$+${\rm H}$ $7.2\times10^{-8}T^{-0.5}$ SLD98
38 ${\rm D}$+${\rm e}$ $\rightarrow$ ${\rm D}^-$ + $\gamma$ $3.0\times10^{-16}(T/300)^{0.95}{\rm exp}(-T/9320)$ SLD98
39 ${\rm D}^+$+${\rm D}^-$ $\rightarrow$ 2${\rm D}$ $1.96\times10^{-7}(T/300)^{-0.487}{\rm exp}(T/29300)$ LSD02
40 ${\rm H}^+$+${\rm D}^-$ $\rightarrow$ ${\rm D}$+${\rm H}$ $1.61\times10^{-7}(T/300)^{-0.487}{\rm exp}(T/29300)$ LSD02
41 ${\rm H}^-$+${\rm D}$ $\rightarrow$ ${\rm H}$+${\rm D}^-$ $6.4\times10^{-9}(T/300)^{0.41}$ SLD98
42 ${\rm D}^-$+${\rm H}$ $\rightarrow$ ${\rm D}$+${\rm H}^-$ $6.4\times10^{-9}(T/300)^{0.41}$ SLD98
43 ${\rm D}^-$+${\rm H}$ $\rightarrow$ ${\rm HD}$+${\rm e}$ $1.5\times10^{-9}(T/300)^{-0.1}$ SLD98
44 ${\rm D}$+${\rm H}^-$ $\rightarrow$ ${\rm HD}$+${\rm e}$ estimated by rate 42 This work
45 ${\rm H}^-$+${\rm D}^+$ $\rightarrow$ ${\rm D}$+${\rm H}$ $1.61\times10^{-7}(T/300)^{-0.487}{\rm exp}(T/29300)$ LSD02
46 ${\rm He}^{++}$+${\rm e}$ $\rightarrow$ ${\rm He}^+$+$\gamma$ $3.36\times10^{-10}T^{-0.5}(T/1000)^{-0.2}\left(1+(T/10^6)^{0.7} \right)^{-1}$ Cen (1992)
47 ${\rm He}^+$+$\gamma$ $\rightarrow$ ${\rm He}^{++}$+ ${\rm e}$ see reference AAZN97
48 ${\rm He}^+$+${\rm e}$ $\rightarrow$${\rm He}$+$\gamma$ see reference AAZN97
49 ${\rm He}$+$\gamma$ $\rightarrow$ ${\rm He}^+$+${\rm e}$ see reference AAZN97
50 ${\rm He}$+${\rm H}^+$ $\rightarrow$ ${\rm He}^+$+${\rm H}$ $4.0\times10^{-37}T^{4.74}$ for T>10000 GP98
    $1.26\times10^{-9}T^{-0.75}{\rm exp}(-127500/T)$ for T<10000 GJ07
51 ${\rm He}^+$+${\rm H}$ $\rightarrow$ ${\rm He}$+${\rm H}^+$ $1.25\times10^{-15}\times\left(T/300 \right)^{0.25}$ ZDKL89
52 ${\rm He}$+${\rm H}^+$ $\rightarrow$ ${\rm HeH}^+$+$\gamma$, $8.0\times10^{-20}(T/300)^{-0.24}{\rm exp}(-T/4000)$ SLD98
  radiative association    
53 ${\rm He}$+${\rm H}^+$ +$\gamma$ $\rightarrow$ ${\rm HeH}^+$+$\gamma$, $3.2\times10^{-20}T^{1.8}/(1+0.1T^{2.04})*{\rm exp}(-T/4000)(1+2\times10^{-4}T_{\rm r}^{1.1}) $ JSK95, ZSD98
  stimulated radiative association    
54 ${\rm He}$+ ${\rm H}_2^+$ $\rightarrow$ ${\rm HeH}^+$+${\rm H}$ $3.0\times10^{-10}{\rm exp}(-6717/T)$ GP98
55 ${\rm He}^+$+${\rm H}$ $\rightarrow$ ${\rm HeH}^+$+$\gamma$ $4.16\times10^{-16}T^{-0.37}{\rm exp}(-T/87600)$ SLD98
56 ${\rm HeH}^+$+${\rm H}$ $\rightarrow$ ${\rm He}$+ ${\rm H}_2^+$ $0.69\times10^{-9}(T/300)^{0.13}{\rm exp}(-T/33100)$ LJB95
57 ${\rm HeH}^+$+${\rm e}$ $\rightarrow$ ${\rm He}$+${\rm H}$ $3.0\times10^{-8}(T/300)^{-0.47}$ SLD98
58 ${\rm HeH}^+$+$\gamma$ $\rightarrow$ ${\rm He}$+${\rm H}^+$ $220T_{\rm r}^{0.9}{\rm exp}(-22740/T_{\rm r})$ JSK95
59 ${\rm HeH}^+$+$\gamma$ $\rightarrow$ ${\rm He}^+$+${\rm H}$ $7.8\times10^3T_{\rm r}^{1.2}{\rm exp}(-240000/T_{\rm r})$ GP98
In the table above, T denotes the gas temperature in Kelvin, $T_{\rm eV}$ the gas temperature in eV, $T_{\rm r}$ the temperature of radiation in K. ${\rm dex}(x)=10^x$. Acronyms: AAZN97: Abel et al. (1997), CCDL07: Capitelli et al. (2007), GJ07: Glover & Jappsen (2007), GP98: Galli & Palla (1998), GP02: Galli & Palla (2002), JSK95: Jurek et al. (1995), LJB95: Linder et al. (1995), LSD02: Lepp et al. (2002), MSM96: Martin et al. (1996), PSS83: Palla et al. (1983), SKHS04b: Savin et al. (2004, Erratum), SLD98: Stancil et al. (1998), TT02: Trevisan & Tennyson (2002), ZDKL89: Zygelman et al. (1989), ZSD98: Zygelman et al. (1998).


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