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Home All issues Volume 698 (June 2025) A&A, 698 (2025) A32 Full HTML
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Table B.1.

List of reactions included in our chemical model.

Tag Reaction Rate coefficient (cm3 s−1, cm6 s−1, s−1) Ref.
H01H_01 H+ + e− → H + γ krec = CH ⋅ αH; 1
αH = F ⋅ a1 ⋅ 10−19ta2/(1.0 + a3ta4),
F = 1.14,  a1 = 4.309,  a2 = −0.6166,
a3 = 0.6703,  a4 = 0.5300,  t = T/104
C H = ( 1 + K H A 2 s 1 s H n HI ) ( 1 + K H ( A 2 s 1 s H + β H ) n HI ) $ C_H = {(1+K_HA_{2s1sH}n_{HI}) \over (1+K_H(A_{2s1sH} + {\beta}_{H})n_{HI})} $
βH = αH ⋅ (2πmekBTR/h2)3/2exp(−E2s/kTR)
KH ≡ λLyα3/(8πH(z)),  λLyα = 121.5682 nm
E 2 s = 5.446756 × 10 − 19 J , Λ H = 8.22458 s − 1 $ E_\mathrm{{2s}} = 5.446756\times 10^{-19}\,{\mathrm{J}}, \, \Lambda_\mathrm{{H}} = 8.22458\,\mathrm{{s}}^{-1} $
H02H_02 H + γ → H+ + e− kion = CH ⋅ βH ⋅ exp(−E2s1s/kTM); 1
E 2 s 1 s = 1.634033 × 10 − 18 J $ \phantom{k_{rec} = } E_{\mathrm{2s1s}} = 1.634033\times 10^{-18}\,\mathrm{J} $
H03H_03 H + e− → H− + γ dex[−17.845 + 0.762logT T ≤ 6000 K 2
+ 0.1523 ( log T ) 2 $ \phantom{ \mathrm{dex}[}+ 0.1523 (\log{T})^{2} $
− 0.03274 ( log T ) 3 ] $ \phantom{ \mathrm{dex}[}- 0.03274 (\log{T})^{3}] $
dex[−16.4199 + 0.1998(logT)2 T >  6000 K
− 5.447 × 10 − 3 ( log T ) 4 $ \phantom{ \mathrm{dex}[} -5.447 \times 10^{-3} (\log{T})^{4} $
+ 4.0415 × 10 − 5 ( log T ) 6 ] $ \phantom{ \mathrm{dex}[} + 4.0415 \times 10^{-5} (\log{T})^{6}] $
H04H_04 H− + γ → H + e− 0.11 T R 2.13 exp ( − 8823.0 / T R ) $ 0.11T_{\mathrm{R}}^{2.13}\exp\left(-8823.0/T_{\mathrm{R}}\right) $ 3
H05H_05 H− + H → H2 + e− 1.5 × 10−9 T <  300.0 3
4.0 × 10−9T−0.17 T ≥ 300.0
H06H_06 H− + H+ → H + H 2.4 × 10 − 6 ( 1.0 + T / 20000 ) / T $ 2.4\times 10^{-6}(1.0+T/20000)/\sqrt{T} $ 4
H07H_07 H + H+ → H2+ + γ dex[−19.38 − 1.523logT 5
+ 1.118 ( log T ) 2 − 0.1269 ( log T ) 3 ] $ \phantom{\mathrm{dex}[} + 1.118 (\log{T})^{2} - 0.1269 (\log{T})^{3}] $
H08H_08 H2+ + γ → H + H+ 20.0 T R 1.59 exp ( − 82000 / T R ) $ 20.0T_{\mathrm{R}}^{1.59}\exp\left(-82000/T_{\mathrm{R}}\right) $ v = 0 3
1.63 × 107exp(−32400.0/TR) LTE
H09H_09 H + H2+ → H2 + H+ 6.4 × 10−10 6
H10H_10 H2 + H+ → H2+ + H [ − 3.3232183 × 10−7 7
+ 3.3735382 × 10 − 7 log T $ \phantom{[} + 3.3735382 \times 10^{-7} \log{T} $
− 1.4491368 × 10 − 7 ( log T ) 2 $ \phantom{[} - 1.4491368 \times 10^{-7} (\log{T})^2 $
+ 3.4172805 × 10 − 8 ( log T ) 3 $ \phantom{[} + 3.4172805 \times 10^{-8} (\log{T})^3 $
− 4.7813720 × 10 − 9 ( log T ) 4 $ \phantom{[} - 4.7813720 \times 10^{-9} (\log{T})^4 $
+ 3.9731542 × 10 − 10 ( log T ) 5 $ \phantom{[} + 3.9731542 \times 10^{-10} (\log{T})^5 $
− 1.8171411 × 10 − 11 ( log T ) 6 $ \phantom{[} - 1.8171411 \times 10^{-11} (\log{T})^6 $
+ 3.5311932 × 10 − 13 ( log T ) 7 ] $ \phantom{[} + 3.5311932 \times 10^{-13} (\log{T})^7 ] $
× exp ( − 21237.15 T ) $ \phantom{[} \times \exp \left(\frac{-21237.15}{T} \right) $
H11H_11 H+ + H− → H2+ + e− 6.9 × 10−9T−0.35 T ≤ 8000 K 8
9.6 × 10−7T−0.90 T >  8000 K
H12H_12 H2+ + e− → H + H 4.2278 × 10−14 − 2.3088 × 10−17T + 7.3428 × 10−21T2
− 7.5474 × 10 − 25 T 3 + 3.3468 × 10 − 29 T 4 − 5.528 × 10 − 34 T 5 $ \phantom{[} - 7.5474\times 10^{-25} T^3 + 3.3468\times 10^{-29} T^4 - 5.528\times 10^{-34} T^5 $ 9
H13H_13 H2+ + H2 → H3+ + H 2.0 × 10−9 10
H14H_14 H2 + γ → H2+ + e− 290.0 T R 1.56 exp ( − 178500.0 / T R ) $ 290.0T_{\mathrm{R}}^{1.56}\exp\left(-178500.0/T_{\mathrm{R}}\right ) $ 3
H15H_15 H2 + γ → H + H 2394.9 T R 0.62681 ( 1.0 + 2.4635 T R 0.56957 ) / exp ( 140050 / T R ) $ 2394.9T_{\mathrm{R}}^{0.62681}\left(1.0+2.4635T_{\mathrm{R}}^{0.56957}\right)/\exp\left(140050/T_{\mathrm{R}}\right) $ TR <  15000 11
6.4471 × 10 7 T R 0.322 ( 1.0 + 6.5341 × 10 − 8 T R 1.4752 ) exp ( − 153570 T R ) $ 6.4471\times 10^7 T_{\mathrm{R}}^{0.322}\left(1.0+6.5341\times 10^{-8}T_{\mathrm{R}}^{1.4752}\right)\exp\left(-\frac{153570}{T_{\mathrm{R}}}\right) $ TR ≥ 15000
H16H_16 H3+ + H → H2+ + H2 7.7 × 10−9exp(−17560.0/TM) 3
H17H_17 H3+ + e− → H2 + H 4.6 × 10 − 6 T M − 0.65 $ 4.6\times 10^{-6}T_{\mathrm{M}}^{-0.65} $ 3
H18H_18 H2 + H+ → H3+ + γ 10−16 3
H19H_19 H2 + H → H + H + H 6.67 × 10 − 12 T 0.5 exp [ − ( 1 + 63593 T ) ] $ 6.67 \times 10^{-12} T^{0.5} \exp \left[-(1+ \frac{63593}{T}) \right] $ v=0 12
3.52 × 10 − 9 exp ( − 43900 T ) $ 3.52 \times 10^{-9} {\exp \left(-\frac{43900}{T}\right)} $ LTE 13
H20H_20 H + e− → H+ + e− + e− exp[−3.271396786 × 101 14
+ 1.35365560 × 10 1 ln T eV $ \phantom{\exp[} + 1.35365560 \times 10^{1} \ln T_{\mathrm{eV}} $
− 5.73932875 × 10 0 ( ln T eV ) 2 $ \phantom{\exp[} - 5.73932875 \times 10^{0} (\ln T_{\mathrm{eV}})^{2} $
+ 1.56315498 × 10 0 ( ln T eV ) 3 $ \phantom{\exp[} + 1.56315498 \times 10^{0} (\ln T_{\mathrm{eV}})^{3} $
− 2.87705600 × 10 − 1 ( ln T eV ) 4 $ \phantom{\exp[} - 2.87705600 \times 10^{-1} (\ln T_{\mathrm{eV}})^{4} $
+ 3.48255977 × 10 − 2 ( ln T eV ) 5 $ \phantom{\exp[} + 3.48255977 \times 10^{-2} (\ln T_{\mathrm{eV}})^{5} $
− 2.63197617 × 10 − 3 ( ln T eV ) 6 $ \phantom{\exp[} - 2.63197617 \times 10^{-3} (\ln T_{\mathrm{eV}})^{6} $
+ 1.11954395 × 10 − 4 ( ln T eV ) 7 $ \phantom{\exp[} + 1.11954395 \times 10^{-4} (\ln T_{\mathrm{eV}})^{7} $
− 2.03914985 × 10 − 6 ( ln T eV ) 8 ] $ \phantom{\exp[} - 2.03914985 \times 10^{-6} (\ln T_{\mathrm{eV}})^{8}] $
H21H_21 H3+ + γ → H2 + H+ 4.5 × 10 8 exp ( − 232258 T R ) $ 4.5\times 10^{8}\exp\left(-\frac{232258}{T_{\mathrm{R}}}\right) $ 15
H22H_22 H3+ + e− → 3 H the same as for blueH_17
H23H_23 H + e− → H+ + 2e− 6.5023 × 10 − 9 T eV 0.48931 exp ( − 12.89365 T eV ) $ 6.5023\times 10^{-9}T_{\mathrm{eV}}^{0.48931}\exp\left(-\frac{12.89365}{T_{\mathrm{eV}}}\right) $ 16
H24H_24 H+ + H + H → H+ + H2 1.145 × 10−29T−1.12 17
H25H_25 H + H + H → H2 + H 1.14 × 10−31T−0.38 T <  300 K 18
3.9 × 10−30T−1 T ≥ 300 K
H26H_26 H2+ + γ → 2H+ + e− 90.0 T R 1.48 exp ( − 335000.0 / T R ) $ 90.0 T_{\mathrm{R}}^{1.48}\exp\left(-335000.0/T_{\mathrm{R}}\right) $ 3
H27H_27 H2 + e− → H− + H 2.7 × 10 − 8 T − 1.27 exp ( − 43000 T ) $ 2.7 \times 10^{-8} T^{-1.27} {\exp \left(-\frac{43000}{T}\right)} $ 19
H28H_28 H2 + e− → H + H + e− 4.49 × 10 − 9 T 0.11 exp ( − 101858 T ) $ 4.49 \times 10^{-9} T^{0.11} {\exp \left(-\frac{101858}{T}\right)} $ v = 0 20
1.91 × 10 − 9 T 0.136 exp ( − 53407.1 T ) $ 1.91 \times 10^{-9} T^{0.136} {\exp \left(-\frac{53407.1}{T}\right)} $ LTE 20
H29H_29 H2 + H2 → H2 + H + H 5.996 × 10 − 30 T 4.1881 ( 1.0 + 6.761 × 10 − 6 T ) 5.6881 exp ( − 54657.4 T ) $ \frac{5.996 \times 10^{-30} T^{4.1881}}{(1.0 + 6.761 \times 10^{-6} T)^{5.6881}} \exp \left(-\frac{54657.4}{T} \right) $ v = 0 21
1.3 × 10 − 9 exp ( − 53300 T ) $ 1.3 \times 10^{-9} {\exp \left(-\frac{53300}{T}\right)} $ LTE 22
H30H_30 H2 + He → H + H + He dex [ − 27.029 + 3.801 log T − 29487 T ] $ \mathrm{dex} \left[ -27.029 + 3.801 \log{T} - \frac{29487}{T} \right] $ v = 0 23
dex [ − 2.729 − 1.75 log T − 23474 T ] $ \mathrm{dex} \left[ -2.729 -1.75 \log{T} - \frac{23474}{T} \right] $ LTE 23
H31H_31 H− + e− → H + e− + e− exp[−1.801849334 × 101 14
+ 2.36085220 × 10 0 ln T eV $ \phantom{\exp [} + 2.36085220 \times 10^{0} \ln T_{\mathrm{eV}} $
− 2.82744300 × 10 − 1 ( ln T eV ) 2 $ \phantom{\exp [} - 2.82744300 \times 10^{-1} (\ln T_{\mathrm{eV}})^{2} $
+ 1.62331664 × 10 − 2 ( ln T eV ) 3 $ \phantom{\exp [} + 1.62331664\times 10^{-2} (\ln T_{\mathrm{eV}})^{3} $
− 3.36501203 × 10 − 2 ( ln T eV ) 4 $ \phantom{\exp [} - 3.36501203 \times 10^{-2} (\ln T_{\mathrm{eV}})^{4} $
+ 1.17832978 × 10 − 2 ( ln T eV ) 5 $ \phantom{\exp [} + 1.17832978\times 10^{-2} (\ln T_{\mathrm{eV}})^{5} $
− 1.65619470 × 10 − 3 ( ln T eV ) 6 $ \phantom{\exp [} - 1.65619470\times 10^{-3} (\ln T_{\mathrm{eV}})^{6} $
+ 1.06827520 × 10 − 4 ( ln T eV ) 7 $ \phantom{\exp [} + 1.06827520\times 10^{-4} (\ln T_{\mathrm{eV}})^{7} $
− 2.63128581 × 10 − 6 ( ln T eV ) 8 ] $ \phantom{\exp [} - 2.63128581\times 10^{-6} (\ln T_{\mathrm{eV}})^{8} ] $
H32H_32 H− + H → H + H + e− 2.5634 × 10 − 9 T eV 1.78186 $ 2.5634 \times 10^{-9} T_{\mathrm{eV}}^{1.78186} $ TeV ≤ 0.1 eV 14
exp[−2.0372609 × 101 TeV >  0.1 eV
+ 1.13944933 × 10 0 ln T eV $ \phantom{\exp [} +1.13944933 \times 10^{0} \ln T_{\mathrm{eV}} $
− 1.4210135 × 10 − 1 ( ln T eV ) 2 $ \phantom{\exp [} -1.4210135 \times 10^{-1} (\ln T_{\mathrm{eV}})^{2} $
+ 8.4644554 × 10 − 3 ( ln T eV ) 3 $ \phantom{\exp [} +8.4644554 \times 10^{-3} (\ln T_{\mathrm{eV}})^{3} $
− 1.4327641 × 10 − 3 ( ln T eV ) 4 $ \phantom{\exp [} -1.4327641 \times 10^{-3} (\ln T_{\mathrm{eV}})^{4} $
+ 2.0122503 × 10 − 4 ( ln T eV ) 5 $ \phantom{\exp [} +2.0122503 \times 10^{-4} (\ln T_{\mathrm{eV}})^{5} $
+ 8.6639632 × 10 − 5 ( ln T eV ) 6 $ \phantom{\exp [} +8.6639632 \times 10^{-5} (\ln T_{\mathrm{eV}})^{6} $
− 2.5850097 × 10 − 5 ( ln T eV ) 7 $ \phantom{\exp [} -2.5850097 \times 10^{-5} (\ln T_{\mathrm{eV}})^{7} $
+ 2.4555012 × 10 − 6 ( ln T eV ) 8 $ \phantom{\exp [} +2.4555012\times 10^{-6} (\ln T_{\mathrm{eV}})^{8} $
− 8.0683825 × 10 − 8 ( ln T eV ) 9 ] $ \phantom{\exp [} -8.0683825\times 10^{-8} (\ln T_{\mathrm{eV}})^{9}] $
H33H_33 H− + H2+ → H2 + H 1.4 × 10 − 7 ( T 300 ) − 0.5 $ 1.4 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 24
H34H_34 H− + H2+ → H + H + H 1.4 × 10 − 7 ( T 300 ) − 0.5 $ 1.4 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 24
H35H_35 H + H + H2 → H2 + H2 0.143 × 10−31T−0.38 T <  300 K 18
0.486 × 10−30T−1 T ≥ 300 K 18
H36H_36 H + H + He → H2 + He 6.9 × 10−32T−0.4 25
H37H_37 H2+ + H → 2H + H+ exp(−32.912+6.9498×10−5T−3.3248×104/T 9
− 4.08 × 10 − 9 T 2 ) $ \phantom{\exp(}\left. - 4.08\times 10^{-9}T^2\right) $
H38H_38 H2 + H+ → 2H + H+ exp(−33.404+2.0148×10−4T−5.2674×104/T 9
− 1.0196 × 10 − 8 T 2 ) $ \phantom{\exp(}\left. - 1.0196\times 10^{-8}T^2\right) $
H39H_39 H3+ + H2 → H3+ + 2H 0.3 × 10 − 10 ( T 300 ) 0.5 exp ( − 52000 T ) $ 0.3\times 10^{-10}\left(\frac{T}{300}\right)^{0.5}\exp\left(-\frac{52000}{T}\right) $ 26
H40H_40 H3+ + e− → H2+ + H + e− 4.8462 × 10 − 7 T eV − 0.04975 exp ( − 19.165665 T eV ) $ 4.8462\times 10^{-7}T_{\mathrm{eV}}^{-0.04975}\exp\left(-\frac{19.165665}{T_{\mathrm{eV}}}\right) $ 16
H41H_41 H2+ + e− → H+ + H + e− 1.0702 × 10 − 7 T eV 0.04876 exp ( − 9.69028 T eV ) $ 1.0702\times 10^{-7}T_{\mathrm{eV}}^{0.04876}\exp\left(-\frac{9.69028}{T_{\mathrm{eV}}}\right) $ 16
H42H_42 H + H → H + H+ + e− 1.45 × 10 − 15 T 0.5 ( 1.0 + T 26280 ) exp ( − 78841 T ) $ 1.45\times 10^{-15}T^{0.5}\left(1.0+\frac{T}{26280}\right)\exp\left(-\frac{78841}{T}\right) $ 27
H43H_43 H+ + H + H → H3+ + H 1.238 × 10−29T−1.046 17
H44H_44 H3+ + H− → H2 + H2 2.3 × 10 − 7 ( T 300 ) − 0.5 $ 2.3\times 10^{-7}\left(\frac{T}{300}\right)^{-0.5} $ 28
He01He_01 He+ + e− → He + γ krec = CHeI ⋅ αHeI; 1
α HeI = q [ T M T 2 ( 1 + T M T 2 ) 1 − p ( 1 + T M T 1 ) 1 + p ] − 1 m 3 s − 1 , $ \phantom{k_{1} = } \alpha_{\mathrm{HeI}} =q\left[\sqrt{T_{\mathrm{M}}\over T_2}\left(1+\sqrt{T_{\mathrm{M}}\over T_2}\right)^{1-p} \left(1+\sqrt{T_{\mathrm{M}}\over T_1}\right)^{1+p}\right]^{-1}\! \mathrm{m^{3}s^{-1}}, $
q = 10 − 16.744 $ \phantom{k_{1} = } q=10^{-16.744} $, p = 0.711, T1 = 105.114 K, T2 = 3 K.
C HeI = ( 1 + K HeI Λ He n HeI exp ( − E 2 p 2 s / k B T M ) ) ( 1 + K HeI ( Λ He + β HeI ) n HeI exp ( − E 2 p 2 s / k T M ) ) , $ \phantom{k_{1} = } C_{\mathrm{HeI}} = {\left(1 + K_{\mathrm{HeI}} \Lambda_{\mathrm{He}} n_{\mathrm{HeI}} \exp\left(-E_{\mathrm{2p2s}}/k_BT_{\mathrm{M}}\right)\right) \over \left(1+K_{\mathrm{HeI}} (\Lambda_{\mathrm{He}} + \beta_{\mathrm{HeI}}) n_{\mathrm{HeI}} \exp\left(-E_{\mathrm{2p2s}}/kT_{\mathrm{M}}\right)\right)}, $
β HeI = α HeI · 1 4 ( 2 π m e k B T M / h 2 ) 3 / 2 exp ( − E 2 s / k T M ) $ \phantom{k_{1} = } \beta_{\mathrm{HeI}} = \alpha_{\mathrm{HeI}}\cdot \frac14(2\pi m_{\mathrm{e}} k_B T_{\mathrm{M}}/h^2)^{3/2} \exp\left(-E_{2s}/kT_{\mathrm{M}}\right) $
K HeI ≡ λ Ly α 3 / ( 8 π H ( z ) ) , λ Ly α = 58.4334 nm , Λ He = 51.3 s − 1 . $ \phantom{k_{1} = } K_{\mathrm{HeI}} \equiv\lambda_{\mathrm{Ly\alpha}}^3/(8\pi H(z)),\, \lambda_{\mathrm{Ly\alpha}} = 58.4334\,\mathrm{nm},\, \Lambda_{\mathrm{He}} = 51.3\,\mathrm{s}^{-1}. $
E 2 p 2 s = 9.64908313 × 10 − 20 J , E 2 s = 6.363254 × 10 − 19 J $ \phantom{k_{1} = } E_{\mathrm{2p2s}} = 9.64908313\times 10^{-20}\,\mathrm{J},\, E_{\mathrm{2s}} = 6.363254\times 10^{-19}\,\mathrm{J} $
He02He_02 He + γ → He+ + e− kion = CHeI ⋅ βHeIexp(−E2s1s/kBTM); 1
E 2 s 1 s = 3.30301387 × 10 − 18 J $ \phantom{k_{1} = } E_{\mathrm{2s1s}} = 3.30301387\times 10^{-18}\,\mathrm{J} $
He03He_03 He + H+ → HeH+ + γ 1.56 × 10 − 20 ( T 300 ) − 0.374 exp ( − T 46000 ) $ 1.56\times10^{-20} \left(\frac{T}{300}\right)^{-0.374}\exp\left(-\frac{T}{46000}\right) $ 29
+ 11.8 × 10 − 20 ( T 300 ) − 0.244 exp ( − T 2890 ) $ \phantom{ = } + 11.8\times10^{-20}\left(\frac{T}{300}\right)^{-0.244}\exp\left(-\frac{T}{2890}\right) $
He04He_04 HeH+ + H → He + H2+ 1.27228 × 10 − 9 ( 1.0 + 0.904409 207.632 8.314472 T ) − 1.0 / 0.904409 $ 1.27228\times 10^{-9}\left(1.0+0.904409\frac{207.632}{8.314472T}\right)^{-1.0/0.904409} $ 30
He05He_05 HeH+ + γ → He + H+ 2.03097 × 10 8 T R − 1.20281 exp ( − 24735 T R ) $ 2.03097\times 10^8T_{\mathrm{R}}^{-1.20281}\exp\left(-\frac{24735}{T_{\mathrm{R}}}\right) $ 31
He06He_06 He+ + +e− → He+ + γ k A = 2.538 × 10 − 13 ( 1262456 T ) 1.503 $ k_{\mathrm{A}} = 2.538 \times 10^{-13} \left(\frac{1262456}{T}\right)^{1.503} $ Case A 32
× [ 1.0 + ( 2418500 T ) 0.470 ] − 1.923 $ \phantom{k_{\mathrm{B}} = } \times [1.0+ \left(\frac{2418500}{T}\right)^{0.470}]^{-1.923} $
k B = 5.506 × 10 − 14 ( 1262456 T ) 1.500 $ k_{\mathrm{B}} = 5.506 \times 10^{-14} \left(\frac{1262456}{T}\right)^{1.500} $ Case B 32
× [ 1.0 + ( 460752 T ) 0.407 ] − 2.242 $ \phantom{k_{\mathrm{B}} = } \times \left[1.0+ \left(\frac{460752}{T}\right)^{0.407}\right]^{-2.242} $
He07He_07 He+ + γ → He+ + +e− 50.0 T R 1.63 exp ( − 590000.0 T R ) $ 50.0T_{\mathrm{R}}^{1.63}\exp\left(-\frac{590000.0}{T_{\mathrm{R}}}\right) $ 3
He08He_08 He + H+ → He+ + H 1.26 × 10 − 9 T − 0.75 exp ( − 127500 T ) $ 1.26 \times 10^{-9} T^{-0.75} {\exp \left(-\frac{127500}{T}\right)} $ T ≤ 10000 K 33
4.0 × 10−37T4.74 T >  10000 K
He09He_09 He+ + H → He + H+ 1.2 × 10 − 15 ( T 300 ) 0.25 $ 1.2 \times 10^{-15} \left(\frac{T}{300}\right)^{0.25} $ 34
He10He_10 He + H2+ → HeH+ + H 3.0 × 10 − 10 exp ( − 6717.0 T ) $ 3.0\times 10^{-10}\exp\left(-\frac{6717.0}{T}\right) $ 35
He11He_11 He+ + H → HeH+ + γ 4.16 × 10 − 16 T − 0.37 exp ( − T 87600 ) $ 4.16\times 10^{-16}T^{-0.37}\exp\left(-\frac{T}{87600}\right) $ 59
He12He_12 HeH+ + e− → He + H 3.0 × 10−8T−0.5 28
He13He_13 HeH+ + H2 → H3+ + He 1.80 × 10−9 28
He14He_14 HeH+ + γ → He+ + H 273518 T R 0.623525 exp ( − 144044.0 T R ) $ 273518T_{\mathrm{R}}^{0.623525}\exp\left(-\frac{144044.0}{T_{\mathrm{R}}}\right) $ 31
He15He_15 He + e− → He+ + 2e− exp[−4.409864886 × 101 14
+ 2.391596563 × 10 1 ln T eV $ \phantom{\exp[} + 2.391596563 \times 10^{1} \ln T_{\mathrm{eV}} $
− 1.07532302 × 10 1 ( ln T eV ) 2 $ \phantom{\exp[} - 1.07532302 \times 10^{1} (\ln T_{\mathrm{eV}})^{2} $
+ 3.05803875 × 10 0 ( ln T eV ) 3 $ \phantom{\exp[} +3.05803875 \times 10^{0} (\ln T_{\mathrm{eV}})^{3} $
− 5.68511890 × 10 − 1 ( ln T eV ) 4 $ \phantom{\exp[} - 5.68511890 \times 10^{-1} (\ln T_{\mathrm{eV}})^{4} $
+ 6.79539123 × 10 − 2 ( ln T eV ) 5 $ \phantom{\exp[} +6.79539123 \times 10^{-2} (\ln T_{\mathrm{eV}})^{5} $
− 5.00905610 × 10 − 3 ( ln T eV ) 6 $ \phantom{\exp[} -5.00905610 \times 10^{-3} (\ln T_{\mathrm{eV}})^{6} $
+ 2.06723616 × 10 − 4 ( ln T eV ) 7 $ \phantom{\exp[} + 2.06723616\times 10^{-4} (\ln T_{\mathrm{eV}})^{7} $
− 3.64916141 × 10 − 6 ( ln T eV ) 8 ] $ \phantom{\exp[} - 3.64916141 \times 10^{-6} (\ln T_{\mathrm{eV}})^{8}] $
He16He_16 He+ + e− → He+ + +2e− exp[−6.87104099 × 101 14
+ 4.393347633 × 10 1 ln T eV $ \phantom{\exp[} + 4.393347633 \times 10^{1} \ln T_{\mathrm{eV}} $
− 1.84806699 × 10 1 ( ln T eV ) 2 $ \phantom{\exp[} - 1.84806699 \times 10^{1} (\ln T_{\mathrm{eV}})^{2} $
+ 4.70162649 × 10 0 ( ln T eV ) 3 $ \phantom{\exp[} + 4.70162649 \times 10^{0} (\ln T_{\mathrm{eV}})^{3} $
− 7.6924663 × 10 − 1 ( ln T eV ) 4 $ \phantom{\exp[} - 7.6924663 \times 10^{-1} (\ln T_{\mathrm{eV}})^{4} $
+ 8.113042 × 10 − 2 ( ln T eV ) 5 $ \phantom{\exp[} + 8.113042 \times 10^{-2} (\ln T_{\mathrm{eV}})^{5} $
− 5.32402063 × 10 − 3 ( ln T eV ) 6 $ \phantom{\exp[} - 5.32402063 \times 10^{-3} (\ln T_{\mathrm{eV}})^{6} $
+ 1.97570531 × 10 − 4 ( ln T eV ) 7 $ \phantom{\exp[} + 1.97570531\times 10^{-4} (\ln T_{\mathrm{eV}})^{7} $
− 3.16558106 × 10 − 6 ( ln T eV ) 8 $ \phantom{\exp[} - 3.16558106\times 10^{-6} (\ln T_{\mathrm{eV}})^{8} $
He17He_17 He+ + H− → He + H 2.32 × 10 − 7 ( T 300 ) − 0.52 exp ( T 22400 ) $ 2.32 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.52} {\exp \left(\frac{T}{22400}\right)} $ 36
He18He_18 He + H+ + γ → HeH+ + 2γ 0.130 × 10 − 20 ( T 300 ) 0.408 exp ( − T 36400 ) $ 0.130\times10^{-20} \left(\frac{T}{300}\right)^{0.408}\exp\left(-\frac{T}{36400}\right) $ 35
+ 7.89 × 10 − 20 ( T 300 ) − 0.399 exp ( − 921 T ) $ + 7.89\times10^{-20}\left(\frac{T}{300}\right)^{-0.399}\exp\left(-\frac{921}{T}\right) $
He19He_19 H2 + He+ → He + H + H+ 10−13 ⋅ (−0.4732142857+0.0369047619⋅T T <  78 K 37
− 0.1488095 · 10 − 3 · T 2 ) $ \phantom{10^{-13}\cdot(} \left.-0.1488095\cdot 10^{-3}\cdot T^2\right) $
10−13 ⋅ (1.623809524−0.1587301587⋅10−2⋅T) 78 K ≤ T <  330 K
10−13 ⋅ (0.111111524+0.1555555413⋅10−2⋅T T ≥ 330 K
+ 4.444444 · 10 − 6 · T 2 ) $ \phantom{10^{-13}\cdot(} \left.+4.444444\cdot 10^{-6}\cdot T^2\right) $
He20He_20 H2 + He+ → H2+ + He 7.2 × 10−15 38
He21He_21 He + H− → He + H + e− 4.1 × 10 − 17 T 2 exp ( − 19870 T ) $ 4.1 \times 10^{-17} T^{2} {\exp \left(-\frac{19870}{T}\right)} $ 39
He22He_22 He+ + H2 → He+ + 2H 0.3 × 10 − 10 ( T 300 ) 0.5 exp ( − 52000 T ) $ 0.3\times 10^{-10}\left(\frac{T}{300}\right)^{0.5}\exp\left(-\frac{52000}{T}\right) $ 26
D01D_01 D+ + e− → D + γ the same as for blueH_01
D02D_02 D + γ → D+ + e− the same as for blueH_02
D03D_03 D + H+ → H + D+ 2.0 × 10 − 10 T 0.402 exp ( − 37.1 T ) $ 2.0 \times 10^{-10} T^{0.402} \exp \left(-\frac{37.1}{T} \right) $ T ≤ 2 ⋅ 105 K 40
− 3.31 × 10 − 17 T 1.48 $ \phantom{=} - 3.31 \times 10^{-17} T^{1.48} $
3.44 × 10−10T0.35 T >  2 ⋅ 105 K
D04D_04 H + D+ → D + H+ 2.06 × 10 − 10 T 0.396 exp ( − 33 T ) $ 2.06 \times 10^{-10} T^{0.396} \exp \left(-\frac{33}{T} \right) $ 40
+ 2.03 × 10 − 9 T − 0.332 $ \phantom{ =}+ 2.03 \times 10^{-9} T^{-0.332} $
D05D_05 H2 + D+ → HD + H+ [0.417+0.846logT−0.137(logT)2] × 10−9 41
D06D_06 HD + H+ → H2 + D+ 1.1 × 10 − 9 exp ( − 488 T ) $ 1.1 \times 10^{-9} {\exp \left(-\frac{488}{T}\right)} $ 41
D07D_07 H + D → HD + γ 10−25[2.80202 − 6.63697lnT T ≤ 200 K 42
+ 4.75619 ( ln T ) 2 − 1.39325 ( ln T ) 3 $ \phantom{10^{-25} [} + 4.75619 (\ln T)^{2} -1.39325 (\ln T)^{3} $
+ 0.178259 ( ln T ) 4 − 0.00817097 ( ln T ) 5 ] $ \phantom{10^{-25} [} + 0.178259 (\ln T)^{4} - 0.00817097 (\ln T)^{5} ] $
10−25exp[507.207 − 370.889lnT T >  200 K
+ 104.854 ( ln T ) 2 − 14.4192 ( ln T ) 3 $ \phantom{10^{-25} \exp } + 104.854 (\ln T)^2 - 14.4192 (\ln T)^{3} $
+ 0.971469 ( ln T ) 4 − 0.0258076 ( ln T ) 5 ] $ \phantom{10^{-25} \exp } + 0.971469 (\ln T)^{4} - 0.0258076 (\ln T)^{5} ] $
D08D_08 H2 + D → HD + H dex[−56.4737+5.88886logT T ≤ 2000 K 43
+ 7.19692 ( log T ) 2 $ \phantom{\mathrm{dex}[} + 7.19692 (\log{T})^{2} $
+ 2.25069 ( log T ) 3 $ \phantom{\mathrm{dex}[} + 2.25069 (\log{T})^{3} $
− 2.16903 ( log T ) 4 $ \phantom{\mathrm{dex}[} - 2.16903 (\log{T})^{4} $
+ 0.317887 ( log T ) 5 ] $ \left. \phantom{\mathrm{dex}[} + 0.317887 (\log{T})^{5} \right] $
3.17 × 10 − 10 exp ( − 5207 T ) $ 3.17 \times 10^{-10} {\exp \left(-\frac{5207}{T}\right)} $ T >  2000 K
D09D_09 HD+ + H → HD + H+ the same as for blueH_09
D10D_10 HD + H → H2 + D 5.25 × 10 − 11 exp ( − 4430 T ) $ 5.25 \times 10^{-11} {\exp \left(-\frac{4430}{T}\right)} $ T ≤ 200 K 44
5.25 × 10 − 11 exp ( − 4430 T + 173900 T 2 ) $ \phantom{=} 5.25 \times 10^{-11} \exp \left(-\frac{4430}{T} + \frac{173900}{T^{2}}\right) $ T >  200 K
D11D_11 D + H+ → HD+ + γ 3.9 × 10 − 19 ( T 300 ) 1.8 exp ( 20 T ) $ 3.9 \times 10^{-19} \left(\frac{T}{300}\right)^{1.8} {\exp \left(\frac{20}{T}\right)} $ 45
D12D_12 H + D+ → HD+ + γ 3.9 × 10 − 19 ( T 300 ) 1.8 exp ( 20 T ) $ 3.9 \times 10^{-19} \left(\frac{T}{300}\right)^{1.8} {\exp \left(\frac{20}{T}\right)} $ 45
D13D_13 HD+ + γ → H + D+ the same as for blueH_08
D14D_14 HD+ + e− → H + D 7.2 × 10−8T−0.5 46
D15D_15 HD+ + H2 → H2D+ + H the same as for blueH_13
D16D_16 D + H3+ → H2D+ + H 4.55 × 10 − 10 ( T 300 ) − 0.5 exp ( − 900 T ) $ 4.55\times 10^{-10} \left(\frac{T}{300}\right)^{-0.5} {\exp \left(-\frac{900}{T}\right)} $ 28
D17D_17 H2D+ + e− → 2H + D 0.73 × 10 − 6 / T $ 0.73\times 10^{-6}/\sqrt{T} $ 47
D18D_18 H2D+ + e− → H2 + D 0.07 × 10 − 6 / T $ 0.07\times 10^{-6}/\sqrt{T} $ 47
D19D_19 H2D+ + e− → HD + H 0.20 × 10 − 6 / T $ 0.20\times 10^{-6}/\sqrt{T} $ 47
D20D_20 H2D+ + H → H3+ + D 2.0 × 10 − 8 T − 1 exp ( − 632 T ) $ 2.0\times 10^{-8}T^{-1}\exp\left(-\frac{632}{T}\right) $ 58
D21D_21 HD+ + H → H2+ + D 1.0 × 10 − 9 exp ( − 154 T ) $ 1.0 \times 10^{-9} {\exp \left(-\frac{154}{T}\right)} $ 48
D22D_22 D + H− → HD + e− 7.5 × 10−10 T <  300 49
2.0 × 10−9T−0.17 T ≥ 300 49
D23D_23 H + D− → HD + e− 7.5 × 10−10 T <  300 49
2.0 × 10−9T−0.17 T ≥ 300 49
D24D_24 HD + H+ → H2+ + D 1.0 × 10 − 9 exp ( − 21600 T ) $ 1.0 \times 10^{-9} {\exp \left(-\frac{21600}{T}\right)} $ 50
D25D_25 HD+ + H → H2 + D+ 1.0 × 10−9 50
D26D_26 HD+ + γ → H+ + D the same as for blueH_08
D27D_27 H2+ + D → HD+ + H 1.07 × 10 − 9 ( T 300 ) 0.062 exp ( − T 41400 ) $ 1.07 \times 10^{-9} \left(\frac{T}{300}\right)^{0.062} {\exp \left(-\frac{T}{41400}\right)} $ 51
D28D_28 D + e− → D− + γ dex[−17.845 + 0.762logT T ≤ 6000 K 2
+ 0.1523 ( log T ) 2 $ \phantom{ \mathrm{dex}[} + 0.1523 (\log{T})^{2} $
− 0.03274 ( log T ) 3 ] $ \phantom{ \mathrm{dex}[} - 0.03274 (\log{T})^{3}] $
dex[−16.4199 + 0.1998(logT)2 T >  6000 K
− 5.447 × 10 − 3 ( log T ) 4 $ \phantom{ \mathrm{dex}[} -5.447 \times 10^{-3} (\log{T})^{4} $
+ 4.0415 × 10 − 5 ( log T ) 6 ] $ \phantom{ \mathrm{dex}[} + 4.0415 \times 10^{-5} (\log{T})^{6}] $
D29D_29 H + D− → D + H− 6.4 × 10 − 9 ( T 300 ) 0.41 $ 6.4 \times 10^{-9} \left(\frac{T}{300}\right)^{0.41} $ 48
D30D_30 D + H− → H + D− 6.4 × 10 − 9 ( T 300 ) 0.41 $ 6.4 \times 10^{-9} \left(\frac{T}{300}\right)^{0.41} $ 48
D31D_31 D + D− → D2 + e− the same as for blueH_05
D32D_32 H+ + D− → HD+ + e− 1.1 × 10 − 9 ( T 300 ) − 0.4 $ 1.1 \times 10^{-9} \left(\frac{T}{300}\right)^{-0.4} $ 45
D33D_33 D+ + H− → HD+ + e− 1.1 × 10 − 9 ( T 300 ) − 0.4 $ 1.1 \times 10^{-9} \left(\frac{T}{300}\right)^{-0.4} $ 45
D34D_34 D+ + D− → D2+ + e− 1.3 × 10 − 9 ( T 300 ) − 0.4 $ 1.3 \times 10^{-9} \left(\frac{T}{300}\right)^{-0.4} $ 45
D35D_35 H+ + D− → D + H 2.4 × 10 − 6 ( 1.0 + T / 20000 ) / T $ 2.4\times 10^{-6}(1.0+T/20000)/\sqrt{T} $ 52
D36D_36 D + D+ → D2+ + γ 1.9 × 10 − 19 T 3 1.8 exp ( 20 T ) $ 1.9 \times 10^{-19} T_{3}^{1.8} {\exp \left(\frac{20}{T}\right)} $ 45
D37D_37 D + H2+ → H2 + D+ the same as for blueH_09
D38D_38 H2+ + D → HD + H+ 1.0 × 10−9 50
D39D_39 HD+ + D → D2+ + H 1.0 × 10−9 53
D40D_40 HD+ + D → D2 + H+ 1.0 × 10−9 50
D41D_41 H + D2+ → D2 + H+ the same as for blueH_09
D42D_42 D2+ + H → HD+ + D 1.0 × 10 − 9 exp ( − 472 T ) $ 1.0 \times 10^{-9} {\exp \left(-\frac{472}{T}\right)} $ 53
D43D_43 D2+ + H → HD + D+ 1.0 × 10−9 50
D44D_44 HD + D+ → D2 + H+ 1.0 × 10−9 53
D45D_45 D2 + H+ → HD+ + D [ 5.18 × 10 − 11 + 3.05 × 10 − 9 ( T 10000 ) $ \left[ 5.18 \times 10^{-11} + 3.05 \times 10^{-9} \left(\frac{T}{10000}\right) \right. $ 54
− 5.42 × 10 − 10 ( T 10000 ) 2 ] exp ( − 20100 T ) $ \phantom{[} \left. -5.42 \times 10^{-10} \left(\frac{T}{10000}\right)^{2} \right]{\exp \left(-\frac{20100}{T}\right)} $
D46D_46 D2 + H+ → D2+ + H the same as for blueH_10 52
D47D_47 HD + D → D2 + H 1.15 × 10 − 11 exp ( − 3220 T ) $ 1.15 \times 10^{-11} {\exp \left(-\frac{3220}{T}\right)} $ 44
D48D_48 D2 + H → HD + D dex[−86.1558+4.53978logT T ≤ 2200 K 43
+ 33.5707 ( log T ) 2 $ \phantom{\mathrm{dex}[} + 33.5707 (\log{T})^{2} $
− 13.0449 ( log T ) 3 $ \phantom{\mathrm{dex}[} - 13.0449 (\log{T})^{3} $
+ 1.22017 ( log T ) 4 $ \phantom{\mathrm{dex}[} + 1.22017 (\log{T})^{4} $
+ 0.0482453 ( log T ) 5 ] $ \left. \phantom{\mathrm{dex}[} + 0.0482453 (\log{T})^{5} \right] $
2.67 × 10 − 10 exp ( − 5945 T ) $ 2.67 \times 10^{-10} {\exp \left(-\frac{5945}{T}\right)} $ T >  2200 K
D49D_49 HD + γ → H + D 1.19 × 10 7 T R 0.28 exp ( − 145310 T R ) $ 1.19\times 10^7 T_{\mathrm{R}}^{0.28}\exp\left(-\frac{145310}{T_{\mathrm{R}}}\right) $ 55
D50D_50 D2+ + γ → D + D+ the same as for blueH_08
D51D_51 D2 + γ → D2+ + e− the same as for blueH_14
D52D_52 D2 + γ → D + D the same as for blueH_15
D53D_53 D− + γ → D + e− the same as for blueH_04
D54D_54 HD + H3+ → H2 + H2D+ 1.0 × 10−9(2.1−0.4⋅log(T)) 3
D55D_55 D2 + e− → D + D + e− 8.24 × 10 − 9 T 0.126 exp ( − 105388 T ) $ 8.24 \times 10^{-9} T^{0.126} {\exp \left(-\frac{105388}{T}\right)} $ v = 0 20
2.75 × 10 − 9 T 0.163 exp ( − 53339.7 T ) $ 2.75 \times 10^{-9} T^{0.163} {\exp \left(-\frac{53339.7}{T}\right)} $ LTE
D56D_56 HD+ + H2 → H3+ + D the same as for blueH_13
D57D_57 H2D+ + H2 → H3+ + HD 4.7 × 10 − 9 exp ( − 215 T ) $ 4.7\times 10^{-9}\exp\left(-\frac{215}{T}\right) $ T <  100 K 3
5.5 × 10−10 T ≥ 100 K
D58D_58 D + e− → D+ + e− + e− the same as for blueH_20 52
D59D_59 HD + e− → D + H− 1.35 × 10 − 9 T − 1.27 exp ( − 43000 T ) $ 1.35 \times 10^{-9} T^{-1.27} {\exp \left(-\frac{43000}{T}\right)} $ 56
D60D_60 HD + e− → H + D− 1.35 × 10 − 9 T − 1.27 exp ( − 43000 T ) $ 1.35 \times 10^{-9} T^{-1.27} {\exp \left(-\frac{43000}{T}\right)} $ 56
D61D_61 HD + e− → H + D + e− 5.09 × 10 − 9 T 0.128 exp ( − 103258 T ) $ 5.09 \times 10^{-9} T^{0.128} {\exp \left(-\frac{103258}{T}\right)} $ v = 0 57
1.04 × 10 − 9 T 0.218 exp ( − 53070.7 T ) $ 1.04 \times 10^{-9} T^{0.218} {\exp \left(-\frac{53070.7}{T}\right)} $ LTE
D62D_62 H2 + D+ → H2+ + D the same as for blueH_10 52
D63D_63 H2 + D+ → HD+ + H [ 1.04 × 10 − 9 + 9.52 × 10 − 9 ( T 10000 ) $ \left[ 1.04 \times 10^{-9} + 9.52 \times 10^{-9} \left(\frac{T}{10000}\right) \right. $ 54
− 1.81 × 10 − 9 ( T 10000 ) 2 ] exp ( − 21000 T ) $ \left. \;-1.81 \times 10^{-9} \left(\frac{T}{10000}\right)^{2} \right]{\exp \left(-\frac{21000}{T}\right)} $
D64D_64 HD + H+ → HD+ + H the same as for blueH_10 52
D65D_65 HD + H → H + D + H the same as for blueH_19 18
D66D_66 HD + He → H + D + He the same as for blueH_30 18
D67D_67 HD + He+ → HD+ + He the same as for blueHe_20 52
D68D_68 HD + He+ → He + H+ + D 1.85 × 10 − 14 exp ( 35 T ) $ 1.85 \times 10^{-14} {\exp \left(\frac{35}{T}\right)} $ 49
D69D_69 HD + He+ → He + H + D+ 1.85 × 10 − 14 exp ( 35 T ) $ 1.85 \times 10^{-14} {\exp \left(\frac{35}{T}\right)} $ 49
D70D_70 HD+ + D → HD + D+ the same as for blueH_09 52
D71D_71 D2 + e− → D + D− 6.7 × 10 − 11 T − 1.27 exp ( − 43000 T ) $ 6.7 \times 10^{-11} T^{-1.27} {\exp \left(-\frac{43000}{T}\right)} $ 56
D72D_72 D− + e− → D + e− + e− the same as for blueH_31 52
D73D_73 D− + H → D + H + e− the same as for blueH_32 52
D74D_74 D+ + H− → D + H the same as for blueH_06 52
D75D_75 D+ + D− → D + D the same as for blueH_06 52
D76D_76 H2+ + D− → H2 + D 1.7 × 10 − 7 ( T 300 ) − 0.5 $ 1.7 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D77D_77 H2+ + D− → H + H + D 1.7 × 10 − 7 ( T 300 ) − 0.5 $ 1.7 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D78D_78 HD+ + H− → HD + H 1.5 × 10 − 7 ( T 300 ) − 0.5 $ 1.5 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D79D_79 HD+ + H− → D + H + H 1.5 × 10 − 7 ( T 300 ) − 0.5 $ 1.5 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D80D_80 HD+ + D− → HD + D 1.9 × 10 − 7 ( T 300 ) − 0.5 $ 1.9 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D81D_81 HD+ + D− → D + H + D 1.9 × 10 − 7 ( T 300 ) − 0.5 $ 1.9 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D82D_82 D2+ + H− → D2 + H 1.5 × 10 − 7 ( T 300 ) − 0.5 $ 1.5 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D83D_83 D2+ + H− → D + D + H 1.5 × 10 − 7 ( T 300 ) − 0.5 $ 1.5 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D84D_84 D2+ + D− → D2 + D 2.0 × 10 − 7 ( T 300 ) − 0.5 $ 2.0 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D85D_85 D2+ + D− → D + D + D 2.0 × 10 − 7 ( T 300 ) − 0.5 $ 2.0 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.5} $ 45
D86D_86 D + D2+ → D2 + D+ the same as for blueH_09 52
D87D_87 HD + D+ → HD+ + D the same as for blueH_10 52
D88D_88 HD + D+ → D2+ + H [ 3.54 × 10 − 9 + 7.50 × 10 − 10 ( T 10000 ) $ \left[ 3.54 \times 10^{-9} + 7.50 \times 10^{-10} \left(\frac{T}{10000}\right) \right. $ 54
− 2.92 × 10 − 10 ( T 10000 ) 2 ] exp ( − 21100 T ) $ \left. \;-2.92 \times 10^{-10} \left(\frac{T}{10000}\right)^{2} \right]{\exp \left(-\frac{21100}{T}\right)} $
D89D_89 D2 + H+ → HD + D+ 2.1 × 10 − 9 exp ( − 491 T ) $ 2.1 \times 10^{-9} {\exp \left(-\frac{491}{T}\right)} $ 53
D90D_90 D2 + D+ → D2+ + D the same as for blueH_10 52
D91D_91 HD + H2 → H + D + H2 the same as for blueH_29 but with ncr → 100ncr 18
D92D_92 D2 + H → D + D + H the same as for blueH_19 52
D93D_93 D2 + H2 → D + D + H2 the same as for blueH_29 52
D94D_94 He + D+ → D + He+ 1.85 × 10 − 9 T − 0.75 exp ( − 127500 T ) $ 1.85 \times 10^{-9} T^{-0.75} {\exp \left(-\frac{127500}{T}\right)} $ T ≤ 10000 K 45
5.9 × 10−37T4.74 T >  10000 K
D95D_95 He+ + D → D+ + He 1.1 × 10 − 15 ( T 300 ) 0.25 $ 1.1 \times 10^{-15} \left(\frac{T}{300}\right)^{0.25} $ 45
D96D_96 D− + He → D + He + e− 1.5 × 10 − 17 T 2 exp ( − 19870 T ) $ 1.5 \times 10^{-17} T^{2} {\exp \left(-\frac{19870}{T}\right)} $ 45
D97D_97 He+ + D− → He + D 3.03 × 10 − 7 ( T 300 ) − 0.52 exp ( T 22400 ) $ 3.03 \times 10^{-7} \left(\frac{T}{300}\right)^{-0.52} {\exp \left(\frac{T}{22400}\right)} $ 45
D98D_98 D2 + He+ → D2+ + He 2.5 × 10−14 53
D99D_99 D2 + He+ → He + D+ + D 1.1 × 10 − 13 T 3 − 0.24 $ 1.1 \times 10^{-13} T_{3}^{-0.24} $ 53
D100D_100 D2 + He → D + D + He the same as for blueH_30 52

Notes. T and TeV are the gas temperature in units of K and eV respectively. References are to the primary source of data for each reaction. Reactions with a peak contribution to the synthesis or destruction of any reactant exceeding 0.1 % are bolded.References. 1: Seager et al. (1999), 2: Wishart (1979), 3: Galli & Palla (1998), 4: Croft et al. (1999), 5: Ramaker & Peek (1976), 6: Karpas et al. (1979), 7: Savin et al. (2004), 8: Poulaert et al. (1978), 9: Coppola et al. (2011a), 10: Theard & Huntress (1974), 11: Novosyadlyj et al. (2022), 12: Mac Low & Shull (1986), 13: Lepp & Shull (1983), 14: Janev et al. (1987), 15: this paper: Fit based on cross-section from https://home.strw.leidenuniv.nl/ ewine/photo/, 16: Méndez et al. (2006), 17: Janev et al. (2003), 18: Glover & Abel (2008), 19: Schulz & Asundi (1967), 20: Trevisan & Tennyson (2002a), 21: Martin et al. (1998), 22: Shapiro & Kang (1987), 23: Dove et al. (1987), 24: Dalgarno & Lepp (1987), 25: Walkauskas & Kaufman (1975), 26: Albertsson et al. (2014), 27: Soon (1992), 28: Database of kinetic data of interest for astrochemical (KIDA, kida.astrochem-tools.org), 29: Courtney et al. (2021), 30: De Fazio (2014), 31: Coppola et al. (2017), 32: Ferland et al. (1992), 33: Kimura et al. (1993), 34: Zygelman et al. (1989), 35: Black (1978), 36: Peart & Hayton (1994), 37: this paper: Fit to data from Schauer et al. (1989); Johnsen et al. (1980) 38: Glover & Abel (2008): Barlow S. G., 1984, PhD thesis, Univ. Colorado 39: Huq et al. (1982), 40: Savin (2002), 41: Lindinger et al. (1982), 42: Dickinson (2005), 43: Fit of Glover & Abel (2008) to data from Mielke et al. (2003), 44: Shavitt (1959), 45: Same as corresponding H reaction, but scaled by D reduced mass (see Glover & Abel (2008)), 46: Strömholm et al. (1995), 47: Datz et al. (1995); Larsson et al. (1996), 48: Dalgarno & McDowell (1956), scaled by D reduced mass (see Glover & Abel (2008)), 49: Same as corresponding H reaction, with branching ratio assumed uniform (see Glover & Abel (2008)), 50: estimate from Glover & Abel (2008), 51: Linder et al. (1995), 52: Same as corresponding H reaction (see Glover & Abel (2008)), 53: Walmsley et al. (2004), 54: Fit of Glover & Abel (2008) based on cross-section from Wang & Stancil (2002) 55: Coppola et al. (2011b), 56: Xu & Fabrikant (2001), 57: Trevisan & Tennyson (2002b), 58: Adams & Smith (1985), 59: Stancil et al. (1998).

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