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Table 2
Properties of the two observed bands.
| Line | HPBW | η mb | ν 0 | E up | nc (20 K) |
| [′′] | [GHz] | [K] | [cm-3] | ||
|
|
|||||
| 88 GHz Band | 29 | 0.81 | |||
| SiO (2–1) | ′′ | ′′ | 86.847 | 6.25 | 1 × 105 |
| C2H (1–0) | ′′ | ′′ | 87.316 | 4.19 | 1 × 105 |
| HCN (1–0) | ′′ | ′′ | 88.633 | 4.25 | 2 × 105 |
| HCO+ (1–0) | ′′ | ′′ | 89.188 | 4.28 | 3 × 104 |
| HNC (1–0) | ′′ | ′′ | 90.663 | 4.35 | 1 × 105 |
| HC3N (10–9) | ′′ | ′′ | 90.978 | 24.0 | 9 × 104 |
| 112 GHz Band | 22 | 0.78 | |||
| HC3N (12–11) | ′′ | ′′ | 109.173 | 34.0 | 2 × 105 |
| C18O (1–0) | ′′ | ′′ | 109.757 | 5.27 | 4 × 102 |
| 13CO (1–0) | ′′ | ′′ | 110.201 | 5.29 | 4 × 102 |
| CN (1–0)J = 1 / 2–1/2 | ′′ | ′′ | 113.191 | 5.43 | 2 × 106 |
| CO (1–0) | ′′ | ′′ | 115.271 | 5.53 | 4 × 102 |
Notes. Rest frequencies of the brightest lines in each band are shown with the beam sizes (HPBW) and main beam efficiencies (ηmb). Energies of upper level (Eup) and critical densities at 20 K (nc) were taken from the Leiden atomic and molecular database.
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