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Table 2
Reactions that result from collisions between ions, neutrals, and electrons in a coma.
| Number | Type | Example | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| (R1) | Ion-neutral charge transfer | H2O |
+ | H2O | → | H2Ofast | + | H2O+ | ||
| (R2) | Ion-neutral chemistry | H2O+ | + | H2O | → | H3O+ | + | HO | ||
| (R3) | Ionization | H |
+ | H2O | → | H |
+ | H2O+ | + | e− |
| (R4) | Electron removal | O | + | H2O | → | O+ | + | H2O | + | e− |
| (R5) | Electron-ion dissociation recombination | H3O+ | + | e− | → | HO | + | 2H | ||
| (R6) | Ion-ion Coulomb interaction | H2O+ | + | H2O+ | → | H2O+ | + | H2O+ | ||
Notes. These reactions are related to different types of collisionopause boundaries (Cravens 1991).
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