Table 1
Parameterized experimentally determined reaction rate coefficients from Figs. 2 and A.1 between 15–280 K (reactions with H2) and 20–280 K (reactions with D2).
| Reaction | A (a) | B | C(b) |
|---|---|---|---|
| H2+ + H2 | 22.30 ± 0.16 | ||
| H2+ + D2 | 21.54 ± 0.16 | ||
| HD+ + D2 | 17.16 ± 0.34 | ||
| D2+ + D2 | 15.65 ± 0.29 | ||
| D2H+ + H2 | 8.21 ± 0.40 | 0.36 ± 0.07 | 16.71 ± 3.56 |
| D3+ + H2 | 10.22 ± 1.03 | 0.41 ± 0.12 | 16.92 ± 5.96 |
| H3+ + D2 | 10.98 ± 0.13 | −0.25 ± 0.04 | 8.06 ± 2.80 |
| D2H+ + D2 | 5.94 ± 0.52 | −0.44 ± 0.13 | 12.86 ± 5.16 |
| HeH+ + H2 | 17. 45 ± 0.23 | ||
| HeD+ + H2 | 15.74 ± 0.23 |
Notes. (a) In 10−10 cm3 s−1;(b) In K. Fit in the form of the Arrhenius-Kooij formula (Wakelam et al. 2012) k(T) = A(T/300)B exp(−C/T). The uncertainties correspond to the statistical errors of the least-squares fit.
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