Table A.1
Molecular data for detected transitions.
| Molecule | Transitions | Frequency | μ | Q2.73 | Aul | El | Reference |
|---|---|---|---|---|---|---|---|
| [GHz] | [Debye] | [s−1] | [cm−1] | ||||
| c-C3H2 | 21,2−10,1 | 85.338894 | 3.27 | 8.8732b | 2.3221 ×10−5 | 1.6332 | CDMS |
| H13CN | 1–0, F = 1–1,2–1,0–1 | 86.339921 | 2.9852 | 5.1261 | 2.2255 ×10−5 | 0.0 | CDMS |
| HCO | 10,1−00,0, J = 3/2–1/2, F = 2–1 | 86.67076 | μa = 1.3626, μb = 0.700 | 6.7785c | 4.6889 ×10−6 | 0.0129 | JPL |
| HCO | 10,1−00,0, J = 3∕2–1/2, F = 1–0 | 86.70836 | μa = 1.3626, μb = 0.700 | 6.7785c | 4.5951 ×10−6 | 0.0000 | JPL |
| H13CO+ | 1–0 | 86.7542884 | 3.90 | 1.7028 | 3.8535 ×10−5 | 0.0 | CDMS |
| HCO | 10,1−00,0, J = 1/2–1/2, F = 1–1 | 86.77746 | μa = 1.3626, μb = 0.700 | 6.7785c | 4.6065 ×10−6 | 0.0129 | JPL |
| HCO | 10,1−00,0, J = 1/2–1/2, F = 0–1 | 86.80578 | μa = 1.3626, μb = 0.700 | 6.7785c | 4.7124 ×10−6 | 0.0129 | JPL |
| SiO | v = 0, 2–1 | 86.846985 | 3.0882 | 2.9760 | 2.9274 ×10−5 | 1.4485 | CDMS |
| CCH | N = 1–0, J = 3/2–1/2, F = 1–1 | 87.284105 | 0.770 | 6.7735 | 2.5989 ×10−7 | 0.0015 | CDMS |
| CCH | N = 1–0, J = 3/2–1/2, F = 2–1 | 87.316898 | 0.770 | 6.7735 | 1.5314 ×10−6 | 0.0015 | CDMS |
| CCH | N = 1–0, J = 3/2–1/2, F = 1–0 | 87.328585 | 0.770 | 6.7735 | 1.2718 ×10−6 | 0.0 | CDMS |
| CCH | N = 1–0, J = 1/2–1/2, F = 1–1 | 87.401989 | 0.770 | 6.7735 | 1.2749 ×10−6 | 0.0015 | CDMS |
| CCH | N = 1–0, J = 1/2–1/2, F = 0–1 | 87.407165 | 0.770 | 6.7735 | 1.5361 ×10−6 | 0.0015 | CDMS |
| CCH | N = 1–0, J = 1/2–1/2, F = 1–0 | 87.446470 | 0.770 | 6.7735 | 2.6133 ×10−7 | 0.0 | CDMS |
| HCN | 1–0 | 88.6316022 | 2.9852 | 5.03 | 2.4074 ×10−5 | 0.0 | CDMS |
| HCO+ | 1–0 | 89.1885247 | 3.90 | 1.6691 | 4.1869 ×10−5 | 0.0 | CDMS |
| HNC | 1–0 | 90.6635680 | 3.05 | 1.6497 | 2.6896 ×10−5 | 0.0 | CDMS |
| CS | 2–1 | 97.9809533 | 1.958 | 2.6827 | 1.6792 ×10−5 | 1.6342 | CDMS |
| 13CO | 1–0 | 110.2013543 | 0.11046 | 2.8912 | 6.3331 ×10−8 | 0.0 | CDMS |
| CN | 1–0 1/2–1/2 F = 1/2–3/2 | 113.1441573 | 1.45 | 8.5178 | 1.053 ×10−5 | 0.0 | CDMS |
| 1–0 1/2–1/2 F = 3/2–1/2 | 113.1704915 | 8.5178 | 5.1451 ×10−6 | 0.0007 | CDMS | ||
| 1–0 1/2–1/2 F = 3/2–3/2 | 113.1912787a | 8.5178 | 6.683 ×10−6 | 0.0 | CDMS | ||
| 1–0 3/2–1/2 F = 3/2–1/2 | 113.4881202 | 8.5178 | 6.7363 ×10−6 | 0.0007 | CDMS | ||
| 1–0 3/2–1/2 F = 5/2–3/2 | 113.4909702 | 8.5178 | 1.1924 ×10−5 | 0.0 | CDMS | ||
| 1–0 3/2–1/2 F = 1/2–1/2 | 113.4996443 | 8.5178 | 1.0629 ×10−5 | 0.0007 | CDMS | ||
| 1–0 3/2–1/2 F = 3/2–3/2 | 113.5089074 | 8.5178 | 5.1904 ×10−6 | 0.0 | CDMS |
Notes. μ corresponds to the dipole moment along the molecular axis. Q2.73 is the partition function at Tex = 2.73 K. Aul is the Einstein coefficient. El is the energy of the lower level. a Line used to estimate the optical depth (see Sect. 3.1). b Partition function for ortho c-C3H2. cHolger S. P. Muller (priv. comm.).
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