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Table 8
Ion-molecule reactions included in the analysis of ionisation degree.
| No. | Reaction | Note on |
| rate coefficienta | ||
|
|
||
| 1 |
|
ζH2 [s-1] |
|
||
| 2 |
|
k + from Hugo et al. (2009) |
| 3 |
|
k3 = 1.7 × 10-9 cm3 s-1 |
| 4 |
|
β4 from Pagani et al. (2009a) |
| H + H + H | ||
| 5 |
|
k5 = 1.2 × 10-9 cm3 s-1 |
| OH+ + H2 | ||
| 6b |
|
k6 from Pagani et al. (2009a) |
| g0 + H + H + H | ||
| 7 |  ( ) |
k7 = 1/3 × k3 |
DCO+ + H2 ( ) |
||
| 8 |
|
β8 from Pagani et al. (2009a) |
| HD + H | ||
| H2 + D | ||
| 9 |
|
k9 = k5 |
| OD+ + H2 | ||
| 10 |
|
k10 from Pagani et al. (2009a) |
| g0 + HD + H | ||
| g0 + D + H + H | ||
| 11 |
|
|
| 12 |
|
k12 from Pagani et al. (2009a) |
| 13 |
|
β13 = β11 |
| 14 |
|
k14 = k12 |
| 15 |
|
k15 = 8.8 × 10-10 cm3 s-1 |
Notes.
(a)
The rate coefficients are taken from the UMIST database unless otherwise stated. The temperature-dependent rates were calculated by using the Tkin values listed in Col. (2) of Table 5.
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