Table 1
Properties of the molecular lines covered by the NOEMA PRODIGE observations.
| Transition | Frequency | Upper energy level | Einstein A coefficient | Synthesized beam | Channel width | Line noise | Moment 0 integration range | ||
|---|---|---|---|---|---|---|---|---|---|
| ν | Eu/kB | log Aul | θmaj × θmin | PA (°) | δv | σline | vlow | vupp | |
| (GHz) | (K) | (log s−1) | (”×”) | (◦) | (km s−1) | (K) | (km s−1) | (km s−1) | |
| SiO (5−4) | 217.104980 | 31.3 | −3.3 | 1.24 × 0.88 | 15 | 0.1 | 0.19 | … | … |
| 1.24 × 0.88 | 15 | 3.0 | 0.037 | −50.0 | 60.0 | ||||
| DCN (3−2) | 217.238538 | 20.9 | −3.3 | 1.24 × 0.88 | 15 | 0.1 | 0.22 | 1.0 | 10.0 |
| H2CO(30.3−20.2) | 218.222192 | 21.0 | −3.6 | 1.23 × 0.88 | 15 | 0.1 | 0.25 | 1.0 | 11.0 |
| HC3N (24−23) | 218.324723 | 131.0 | −3.1 | 1.23 × 0.88 | 15 | 0.1 | 0.22 | 1.5 | 8.0 |
| CH3OH(42.3−31.2 E) | 218.440063 | 45.5 | −4.3 | 1.23 × 0.88 | 15 | 0.1 | 0.22 | 2.5 | 11.0 |
| OCS (18−17) | 218.903356 | 99.8 | −4.5 | 1.23 × 0.88 | 13 | 0.1 | 0.22 | 1.0 | 11.0 |
| C18O (2–1) | 219.560357 | 15.8 | −6.2 | 1.22 × 0.87 | 13 | 0.1 | 0.21 | 1.0 | 11.0 |
| SO(65 − 54) | 219.949442 | 35.0 | −3.9 | 1.22 × 0.87 | 13 | 0.1 | 0.30 | −1.5 | 12.0 |
| CO (2−1) | 230.538000 | 16.6 | −6.2 | 1.18 × 0.83 | 14 | 0.1 | 0.35 | … | … |
| 1.18 × 0.83 | 14 | 3.0 | 0.038 | −50.0 | 55.0 | ||||
Notes. The transition properties (ν, Eu/kB, and Aul) were taken from the CDMS (Müller et al. 2005) and JPL (Pickett et al. 1998) databases. The noise per channel in the line data, σline , was estimated in the central area of the mosaic as the standard deviation in line-free channels. For SiO and CO, we used both wide- and narrowband data with channel widths of 3.0 km s−1 and 0.1 km s−1, respectively. The last two columns show the velocity ranges, vlow and vupp , that we used to compute the line-integrated intensity (moment 0) maps presented in Fig. 2.
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