Table B.1
List of reactions and rates included in our chemical network.
| Reaction | Rate coefficient (cm3 s-1) | T range | Ref. |
|
|
|||
| 1...... H + e−→ H+ + 2e− | k1 = exp[–32.71396786+13.5365560 ln Te | 1 | |
| – 5.73932875 (ln Te)2+1.56315498 (ln Te)3 | |||
| – 0.28770560 (ln Te)4+3.48255977 × 10-2(ln Te)5 | |||
| – 2.63197617 × 10-3(ln Te)6+1.11954395 × 10-4(ln Te)7 | |||
| – 2.03914985 × 10-6(ln Te)8] | |||
| 2...... H+ + e−→ H + γ | k2 = 3.92 × 10-13Te-0.6353 | T ≤ 5500 K | 2 |
| = exp[–28.61303380689232 | T> 5500 K | ||
| – 7.241 125 657 826 851 × 10-1 ln Te | |||
| – 2.026 044 731 984 691 × 10-2 (ln Te)2 | |||
| – 2.380 861 877 349 834 × 10-3 (ln Te)3 | |||
| – 3.212 605 213 188 796 × 10-4 (ln Te)4 | |||
| – 1.421 502 914 054 107 × 10-5 (ln Te)5 | |||
| + 4.989 108 920 299 510 × 10-6 (ln Te)6 | |||
| + 5.755 614 137 575 750 × 10-7 (ln Te)7 | |||
| – 1.856 767 039 775 260 × 10-8 (ln Te)8 | |||
| – 3.071 135 243 196 590 × 10-9 (ln Te)9] | |||
| 3...... He + e−→ He+ + 2e− | k3 = exp[–44.09864886 + 23.915 965 63 ln Te | 1 | |
| – 10.753 230 2 (ln Te)2 | |||
| + 3.058 038 75 (ln Te)3 | |||
| – 5.685 118 9 × 10-1 (ln Te)4 | |||
| + 6.795 391 23 × 10-2 (ln Te)5 | |||
| – 5.009 056 10 × 10-3 (ln Te)6 | |||
| + 2.067 236 16 × 10-4 (lnTe)7 | |||
| – 3.649 161 41 × 10-6 (ln Te)8] | |||
| 4...... He+ + e−→ He + γ | k4 = 3.92 × 10-13Te-0.6353 | Te ≤ 0.8 eV | 3 |
= 3.92 × 10-13 |
Te> 0.8 eV | ||
+ 1.54 × 10-9
[1.0 + 0.3 / exp(8.099
328 789 667/Te)] |
|||
| × [exp(40.496 643 948 336 62/Te)] | |||
| 5...... He+ + e−→ He++ + 2e− | k5 = exp[–68.710 409 902 120 01 + 43.933 476 326 35 lnTe | 4 | |
| – 18.480 669 935 68 (ln Te)2 | |||
| + 4.701 626 486 759 002 (ln Te)3 | |||
| – 7.692 466 334 492 × 10-1 (ln Te)4 | |||
| + 8.113 042 097 303 × 10-2 (ln Te)5 | |||
| – 5.324 020 628 287 001 × 10-3 (ln Te)6 | |||
| + 1.975 705 312 221 × 10-4 (ln Te)7 | |||
| – 3.165581065665 × 10-6 (ln Te)8] | |||
Notes. Te is the temperature in eV.
Reference. 1) Janev et al. (1987); 2) Abel et al. (1997) fit by data from Ferland et al. (1992); 3) Cen (1992), Aldrovandi & Pequignot (1973); 4) Aladdin database https://www-amdis.iaea.org/ALADDIN/, see Abel et al. (1997).
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