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Home All issues Volume 696 (April 2025) A&A, 696 (2025) L13 Full HTML
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Table D.2.

Chemical reactions (continued)

No. Reaction Reaction rate cm3 s−1
R51 H + OH → H2O 5.26 × 10−18(T/300)−5.22exp(−90/T)
R52 H + OH → O + H2 6.99 × 10−14(T/300)2.8exp(−1950/T)
R53 O + H+ → O+ + H 6.86 × 10−10(T/300)0.26exp(−224.3/T)
R54 O + H 2 + $ \mathrm{O}+\mathrm{H_{2}^{+}} $ → OH+ + H 1.50 × 10−9
R55 O + H 3 + $ \mathrm{O}+\mathrm{H_{3}^{+}} $ → H2O+ + H 3.42 × 10−10(T/300)−0.16exp(−1.4/T)
R56 O + H 3 + $ \mathrm{O}+\mathrm{H_{3}^{+}} $ → OH+ + H2 7.98 × 10−10(T/300)−0.16exp(−1.4/T)
R57 O + H2O+ → O 2 + + H 2 $ \mathrm{O_{2}^{+}}+\mathrm{H_{2}} $ 4.0 × 10−11
R58 O + OH+ → O 2 + + H $ \mathrm{O_{2}^{+}}+\mathrm{H} $ 7.10 × 10−10
R59 O + OH → O2 + H 3.69 × 10−11(T/300)−0.27exp(−12.9/T)
R60 O + O → O2 4.9 × 10−20(T/300)1.58
R61 O(1D) → O 1.0 × 10−4
R62 O(1D) + H2O → OH + OH 2.2 × 10−9
R63 O(1D) + H2 → H + OH 1.0 × 10−9
R64 O(1D) + O2 → O2 + O 3.2 × 10−11exp(70/T)
R65 O(1D) + O → O + O 8.0 × 10−12
R66 OH + H+ → OH+ + H 2.1 × 10−9(T/300)−0.5
R67 OH + H 2 + $ \mathrm{OH}+\mathrm{H_{2}^{+}} $ → OH+ + H2 7.6 × 10−10(T/300)−0.5
R68 OH + O+ → OH+ + O 3.6 × 10−10(T/300)−0.5
R69 OH + H 2 + $ \mathrm{OH}+\mathrm{H_{2}^{+}} $ → H2O+ + H 7.6 × 10−10(T/300)−0.5
R70 OH + H 3 + $ \mathrm{OH}+\mathrm{H_{3}^{+}} $ → H2O+ + H2 1.3 × 10−9(T/300)−0.5
R71 OH + O+ → O 2 + + H $ \mathrm{O_{2}^{+}}+\mathrm{H} $ 3.6 × 10−10(T/300)−0.5
R72 OH + OH+ → H2O+ + O 7.0 × 10−10(T/300)−0.5
R73 OH + H2O+ → H3O+ + O 6.9 × 10−10(T/300)−0.5
R74 OH + OH → H2O + O 1.65 × 10−12(T/300)1.14exp(−50/T)
R75 O2 + H+ → O 2 + + H $ \mathrm{O_{2}^{+}}+\mathrm{H} $ 2.0 × 10−9
R76 O 2 + H 2 + $ \mathrm{O_{2}}+\mathrm{H_{2}^{+}} $ → O 2 + + H 2 $ \mathrm{O_{2}^{+}}+\mathrm{H_{2}} $ 8.0 × 10−10
R77 O2 + H2O+ → O 2 + + H 2 O $ \mathrm{O_{2}^{+}}+\mathrm{H_{2}O} $ 4.6 × 10−10
R78 O2 + O+ → O 2 + + O $ \mathrm{O_{2}^{+}}+\mathrm{O} $ 1.9 × 10−11
R79 O2 + OH+ → O 2 + + OH $ \mathrm{O_{2}^{+}}+\mathrm{OH} $ 5.9 × 10−10
R80 H+ + e → H + PHOTON 3.5 × 10−12(T/300)−0.75
R81 H 2 + + e $ \mathrm{H_{2}^{+}}+\mathrm{e} $ → H + H 1.6 × 10−8(T/300)−0.43
R82 H 3 + + e $ \mathrm{H_{3}^{+}}+\mathrm{e} $ → H2 + H 2.34 × 10−8(T/300)−0.52
R83 H 3 + + e $ \mathrm{H_{3}^{+}}+\mathrm{e} $ → H + H + H 4.36 × 10−8(T/300)−0.52
R84 O+ + e → O + PHOTON 3.24 × 10−12(T/300)−0.66
R85 O 2 + + e $ \mathrm{O_{2}^{+}}+\mathrm{e} $ → O + O 1.95 × 10−7(T/300)−0.7
R86 OH+ + e → O + H 3.75 × 10−8(T/300)−0.5
R87 H2O+ + e → O + H2 3.9 × 10−8(T/300)−0.5
R88 H2O+ + e → O + H + H 3.05 × 10−7(T/300)−0.5
R89 H2O+ + e → OH + H 8.6 × 10−8(T/300)−0.5
R90 H3O+ + e → H2O + H 7.09 × 10−8(T/300)−0.5
R91 H3O+ + e → O + H2 + H 5.60 × 10−9(T/300)−0.5
R92 H3O+ + e → OH + H2 5.37 × 10−8(T/300)−0.5
R93 H3O+ + e → OH + H + H 3.05 × 10−7(T/300)−0.5
Ref. McElroy et al. (2013)

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