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Table 3

Photodissociation reactions.

Reaction αphot(s-1) γ CR0d

H2 + photon  →  H + H 5.0(−11)b a 0.05
HD + photon  →  H + D 5.0(−11)b a 0.05
D2 + photon  →  D + D 5.0(−11)b 1.8 0.05
OH + photon  →  O + H 3.9(−10)c 2.24 254.5
OD + photon  →  O + D 3.9(−10)c 2.24 254.5
H2O + photon →  OH + H 8.0(−10)c 2.2 485.5
HDO + photon →  OD + H 8.0(−10)c 2.2 485.5
D2O + photon →  OD + D 8.0(−10)c 2.2 485.5
O2 + photon →  O + O 7.9(−10)c 2.13 375.5
O3 + photon →  O2 + O 1.9(−9)c 1.85 375.5
HO2 + photon  →  OH + O 6.7(−10)c 2.12 375
DO2 + photon  →  OD + O 6.7(−10)c 2.12 375
H2O2 + photon  →  OH + O 9.5(−10)c 2.28 750
HDO2 + photon  →  OD + O 9.5(−10)c 2.28 750
D2O2 + photon  →  OH + O 9.5(−10)c 2.28 750
(s-1); CRphot = 10-16 CR0 (s-1)

Notes.

(a) depends on the H2 and HD self-shielding;

(b)

van Dishoek (1998);

(c)

van Dishoek (2006);

(d)

Woodall et al. (2007).

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