Table 1.
Properties of the two detected quasi-bound levels, v = 2, J = 29 and v = 1, J = 31, of H2 and their emission spectrum.
| Transition |  |
λ | A | Ar | τd |  |
|---|---|---|---|---|---|---|
| label | (cm−1) | (μm) | (s−1) | (s−1) | (s) | (K) |
| 2 − 0 O(31) | 1387.04 | 7.2096 | 2.704E−11 | 5.482E−06 | 8.130E12 | 676.0 |
| 2 − 0 Q(29) | 4165.40 | 2.4007 | 4.592E−08 | 5.482E−06 | 8.130E12 | 676.0 |
| 2 − 0 S(27) | 7034.45 | 1.4216 | 2.240E−07 | 5.482E−06 | 8.130E12 | 676.0 |
| 2 − 1 Q(29) | 1944.67 | 5.1423 | 3.947E−07 | 5.482E−06 | 8.130E12 | 676.0 |
| 2 − 1 S(27) | 4590.29 | 2.1785 | 2.944E−06 | 5.482E−06 | 8.130E12 | 676.0 |
| 2 − 2 S(27) | 2399.19 | 4.1681 | 1.873E−06 | 5.482E−06 | 8.130E12 | 676.0 |
| 2 − 3 S(27) | 489.60 | 20.4248 | 2.582E−10 | 5.482E−06 | 8.130E12 | 676.0 |
| 1 − 0 Q(31) | 1974.02 | 5.0658 | 2.452E−07 | 5.219E−06 | 4.083E06 | 1520.5 |
| 1 − 0 S(29) | 4752.38 | 2.1042 | 2.101E−06 | 5.219E−06 | 4.083E06 | 1520.5 |
| 1 − 1 S(29) | 2531.65 | 3.9500 | 2.872E−06 | 5.219E−06 | 4.083E06 | 1520.5 |
| 1 − 2 S(29) | 586.98 | 17.0364 | 4.963E−10 | 5.219E−06 | 4.083E06 | 1520.5 |
Notes.
is the computed transition frequency; λ is the corresponding vacuum wavelength. A is the sum of the electric quadrupole and the magnetic dipole contributions to the Einstein radiative emission coefficients of the transition from Roueff & Abgrall (2022). Ar is the total radiative decay probability, and τd is the dissociation lifetime of the upper level. 
is the quasi-bound upper level energy expressed in K above the dissociation limit.
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