Table 2
Comparison between the Herschel and ALMA integrated line fluxes.
| Molecule | Transition | Herschel | Herschel | Herschel | Herschel | ALMA | Comments | Comments |
|
rms | S/N | Fν dν | Fν dν | Herschel | ALMA | ||
| (K) | (mK) | (Jy MHz) | (Jy MHz) | data | data | |||
|
|
||||||||
| 29SiO | 15–14 | 0.065 | 9 | 7 | (1408) | (834) | blend “U” | |
| Si33S | 36–35 | 0.047 | 8.9 | 5 | 210 | 271 | low S/N | |
| SiC2 | 26, 4, 22–25, 4, 21 | 0.054 | 5.5 | 10 | 1168 | 816 | ||
| SiS v = 2 | 36–35 | 0.018 | 3.3 | 5 | 191 | 159 | low S/N | |
| SiC2 | 27, 6, 22–26, 6, 21 | − | 4.5 | − | − | − | blend SiO v = 1 | blend SiO v = 1 |
| SiO v = 1 | 15–14 | − | 2.9 | − | − | − | blend SiC2 | blend SiC2 |
| 30SiS | 37–36 | 0.055 | 4.9 | 11 | 1035 | 950 | ||
| 13CS | 14–13 | 0.093 | 4.7 | 20 | 2012 | 1397 | weak blend “U” | |
| 29Si34S | 38–37 | − | 7 | − | − | − | blend SiC2 | blend SiC2 |
| SiC2 | 31, 0, 31–30, 0, 30 | − | 5.1 | − | − | − | blend 29Si34S | blend 29Si34S |
| SiC2 | 30, 2, 29–29, 2, 28 | 0.061 | 8.4 | 7 | 1297 | 883 | ||
| 29SiS | 37–36 | 0.075 | 6.2 | 12 | 1452 | 1059 | ||
| AlF | 20–19 | − | 6.4 | − | − | − | blend C18O | blend C18O |
| C18O | 6–5 | − | 9 | − | − | − | blend AlF | blend AlF |
| SiC2 | 29, 2, 27–28, 2, 26 | 0.055 | 5.6 | 10 | 1281 | 735 | ||
| 13CO | 6–5 | 1.235 | 7 | 176 | 32 525 | 1366 | weak blend Si33S J = 37–36 | blend Si33S J = 37–36 |
Notes. Columns 1 and 2 list the molecule and its transition; Cols. 3–5 give the Herschel antenna peak temperature, rms and S/N; the Herschel and ALMA integrated line fluxes are tabulated in Col. 6; comments on blends as seen in the Herschel and ALMA data sets are given in the last two columns. The integrated line fluxes plagued by weak line blends are given within parentheses. A “−” indicates the cases of strong line blending where only detailed modelling can reveal the contribution of the individual components. The Herschel point-source sensitivity of 466 Jy/K (Roelfsema et al. 2012) has been used for all lines. For 13CO J = 6–5, the estimated source size of 10′′ (Crosas & Menten 1997) was taken into account.
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