Open Access
Table 1
Analysed ALMA spectral windows.
| Spectral window label | Central frequency | Bandwidth | Velocity resolution | Beam | Beam PA | Chan. rms | |
|---|---|---|---|---|---|---|---|
| (GHz) | (MHz) | (km s−1) | (”) | (°) | (mJy beam−1) | ||
| Continuum high frequency | 246.2 | 1875 | 1.2 | 0.32 × 0.27 | 107 | 1.3 | |
| Continuum low frequency | 232.2 | 1875 | 1.3 | 0.51 × 0.27 | 109 | 2.0 | |
| NH2CHO 121,12–111,11 | 243.5 | 58.59 | 0.15 | 0.32 × 0.28 | 106 | 4.5 | |
| CH3CN 140–130 | 257.5 | 58.59 | 0.14 | 0.31 × 0.26 | 109 | 4.9 | |
| HCOOCH3 241,24–231,23 | 259.3 | 58.59 | 0.14 | 0.31 × 0.26 | 106 | 3.7 |
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