Table 1
Line parameters.
| Line | Freq. (GHz) |  |
 |
Beam (″) |  |
|---|---|---|---|---|---|
| Continuum | 82.02 | – | 0.1 | 7.0 × 2.6 | |
| DCO+(1–0) | 72.039 | 0.187 | 14.5 | 8.3 × 3.2 | |
| SO2(60,6–51,5) | 72.758 | 0.155 | 13.0 | 8.2 × 3.1 | |
| H2CO(10,1–00,0) | 72.838 | 0.161 | 9.9 | 8.2 × 3.1 | 2.6 |
| CH3CN(40–30) | 73.590 | 0.144 | 9.5 | 8.2 × 3.1 | 37 |
| DNC(1–0) | 76.306 | 0.111 | 9.9 | 8.0 × 3.0 | |
| NH2D(1–0) | 85.926 | – | 7.5 | 7.0 × 2.5 | |
| H13CO+(1–0) | 86.754 | 0.165 | 7.6 | 7.3 × 2.6 | 22 |
| SiO(2–1) | 86.847 | 0.149 | 8.6 | 7.3 × 2.6 | 15b |
| HCN(1–0) | 88.632 | 0.146 | 16.1 | 7.2 × 2.6 | 4.5 |
| HCO+(1–0) | 89.189 | 0.160 | 9.5 | 7.1 × 2.5 | 0.5 |
| CH3CN(50–40) | 91.987 | 0.148 | 6.8 | 7.0 × 2.5 | 74 |
| 13CS(2–1) | 92.494 | 0.126 | 9.6 | 6.9 × 2.5 | 5.4c |
| N2H+(1–0) | 93.174 | 0.146 | 11.8 | 6.9 × 2.5 | 5.5 |
Notes. The 1σ rms values are for all lines in the merged data at 0.8 km s−1 channel width. Only NH2D is for the NOEMA-only data. The continuum rms is for NOEMA-only data across the whole bandpass, excluding the strong spectral lines. a Effective densities at 20 K from Shirley (2015). b Critical densities (no effective densities in Shirley 2015). c Value for CS(1–0) in Shirley (2015).
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