Table 1
Observed molecular transitions.
| Species | Transition | Frequency | gu | Eup | μ | Sij (a) | Relative I (b) | Aij |
|---|---|---|---|---|---|---|---|---|
| (MHz) | (K) | (Debye) | (s−1) | |||||
| C18O | J = 1−0 | 109 782.173 | 3.0 | 5.3 | 0.11 | 1.000 | 6.27 × 10−8 | |
| HCO |  |
86 670.760 | 5.0 | 4.2 | 1.36 | 1.666 | 0.421 | 4.69 × 10−6 |
| HCO |  |
86 708.360 | 3.0 | 4.2 | 0.979 | 0.247 | 4.60 × 10−6 | |
| HCO |  |
86 777.460 | 3.0 | 4.2 | 0.979 | 0.247 | 4.61 × 10−6 | |
| HCO |  |
86 805.780 | 1.0 | 4.2 | 0.333 | 0.084 | 4.71 × 10−6 | |
| H13CO+ | J = 1−0 | 86 754.288 | 3.0 | 4.2 | 3.90 | 1.000 | 3.85 × 10−5 | |
| HOC+ | J = 1−0 | 89 487.414 | 3.0 | 4.3 | 2.77 | 1.000 | 7.20 × 10−5 | |
| C2H | N = 1−0, J = 3∕2−1∕2, F = 1−1 | 87 284.156 | 3.0 | 4.2 | 0.77 | 0.170 | 0.043 | 2.81 × 10−7 |
| C2H | N = 1−0, J = 3∕2−1∕2, F = 2−1 | 87 316.925 | 5.0 | 4.2 | 1.667 | 0.417 | 1.65 × 10−6 | |
| C2H | N = 1−0, J = 3∕2−1∕2, F = 1−0 | 87 328.624 | 3.0 | 4.2 | 0.830 | 0.208 | 1.37 × 10−6 | |
| C2H | N = 1−0, J = 1∕2−1∕2, F = 1−1 | 87 402.004 | 3.0 | 4.2 | 0.830 | 0.208 | 1.38 × 10−6 | |
| C2H | N = 1−0, J = 1∕2−1∕2, F = 0−1 | 87 407.165 | 1.0 | 4.2 | 0.333 | 0.083 | 1.66 × 10−6 | |
| C2H | N = 1−0, J = 1∕2−1∕2, F = 1−0 | 87 446.512 | 3.0 | 4.2 | 0.170 | 0.043 | 2.82 × 10−7 | |
| c-C3H2 |  |
85 338.894 | 15.0 | 6.4 | 3.27 | 4.503 | 2.32 × 10−5 | |
| H13CN | J = 1−0, F = 1−1 | 86 338.767 | 3.0 | 4.1 | 2.99 | 1.067 | 0.333 | 2.22 × 10−5 |
| H13CN | J = 1−0, F = 2−1 | 86 340.184 | 5.0 | 4.1 | 1.778 | 0.555 | 2.22 × 10−5 | |
| H13CN | J = 1−0, F = 0−1 | 86 342.274 | 1.0 | 4.1 | 0.356 | 0.111 | 2.22 × 10−5 | |
| HC15N | J = 1−0 | 86 054.966 | 3.0 | 4.1 | 2.99 | 1.000 | 2.20 × 10−5 | |
| HN13C | J = 1−0 | 87 090.850 | 3.0 | 4.2 | 2.70 | 1.000 | 1.87 × 10−5 | |
| CN | N = 1−0, J = 1∕2−1∕2, F = 1∕2−1∕2 | 113 123.370 | 2.0 | 5.4 | 1.45 | 0.073 | 0.037 | 1.29 × 10−6 |
| CN | N = 1−0, J = 1∕2−1∕2, F = 1∕2−3∕2 | 113 144.157 | 2.0 | 5.4 | 0.594 | 0.297 | 1.05 × 10−5 | |
| CN | N = 1−0, J = 1∕2−1∕2, F = 3∕2−1∕2 | 113 170.492 | 4.0 | 5.4 | 0.580 | 0.290 | 5.15 × 10−6 | |
| CN | N = 1−0, J = 1∕2−1∕2, F = 3∕2−3∕2 | 113 191.279 | 4.0 | 5.4 | 0.753 | 0.377 | 6.68 × 10−6 | |
Notes. (a) Sij is the line strength taken from the JPL and CDMS catalogs. (b)Expected relative intensities (Sij / ∑ Sij), assuming that lines are optically thin (τν < 1). The sum of relative intensities of the hyperfine lines is normalized to 1. gu is the statistical weight of the upper state level, and Eu is the energy of the upper level of the selected transition. μ is the permanent dipole moment of the species. Aul is the Einstein coefficient for spontaneous emission.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.