Table 2.
Summary of the properties of our sources.
| Source | SPT0103-45a | SPT0125-47 | SPT0125-50a | SPT0300-46a | SPT0551-50 |
|---|---|---|---|---|---|
| z | 3.0917 | 2.5148 | 3.9593 | 3.5955 | 3.1641 |
| Magnification μb | 14.4 | 18.9 | 26.7 | 14.0 | 6.3 |
| Intrinsic 8–1000 μm luminosity LIR (1012L⊙) | 6.19 ± 1.67 | 9.63 ± 0.90 | 3.92 ± 0.36 | 5.67 ± 1.24 | 10.02 ± 1.52 |
| 13CO(4-3) | |||||
| Observed frequency νobs (GHz) | 107.722 | 125.402 | 88.876 | – | 105.849 |
| Velocity offset Δν (km s−1) | – | 6 ± 19e | – | – | –65 ± 92 |
| Full width at half maximum (km s−1) | – | 407 ± 54e | – | – | 717 ± 235 |
| Peak flux density (mJy) | < 1.64 | 2.67 ± 0.37e | < 0.47 | – | 0.42 ± 0.12 |
| S/N | 2.7 | 7.2 | 0.1 | – | 3.4 |
| Line flux I13CO(4-3) (Jy km s−1) | < 0.73 | 1.15 ± 0.22 | < 0.16 | – | 0.32 ± 0.15 |
| Luminosity L′13CO(4-3) (108 K km s−1 pc2) | < 15.0 | 12.8 ± 2.4 | < 2.7 | – | 15.7 ± 7.1 |
| Average sample luminosity L′13CO(4-3)c | 12.3 ± 2.7 | ||||
| HCN(5-4) | |||||
| Observed frequency νobs (GHz) | 108.296 | 126.071 | 89.351 | 96.425 | 106.413 |
| Velocity offset Δν (km s−1) | – | 39 ± 45 | – | – | 74 ± 89 |
| Full width at half maximum (km s−1) | – | 475 ± 128 | – | – | 529 ± 232 |
| Peak flux density (mJy) | < 1.28 | 1.90 ± 0.36 | < 0.95 | < 0.39 | 0.39 ± 0.13 |
| S/N | 1.8 | 5.3 | 1.8 | 0.5 | 3.0 |
| Line flux IHCN(5-4) (Jy km s−1) | < 0.55 | 0.96 ± 0.23 | < 0.27 | < 0.32 | 0.22 ± 0.11 |
| Luminosity L′HCN(5-4) (108 K km s−1 pc2) | < 11.2 | 10.6 ± 2.5 | < 4.5 | < 8.6 | 10.6 ± 5.1 |
| Average sample luminosity L′HCN(5-4)c | 7.1 ± 1.6 | ||||
| HCO+(5-4) | |||||
| Observed frequency νobs (GHz) | 108.977 | 126.864 | 89.912 | 97.031 | 107.083 |
| Velocity offset Δν (km s−1) | – | 61 ± 45 | – | – | 170 ± 57 |
| Full width at half maximum (km s−1) | – | 496 ± 119 | – | – | 318 ± 194 |
| Peak flux density (mJy) | < 0.92 | 1.92 ± 0.35 | < 0.87 | < 0.63 | 0.50 ± 0.16 |
| S/N | 1.1 | 5.6 | 1.5 | 1.7 | 3.1 |
| Line flux IHCO+(5-4) (Jy km s−1) | < 0.37 | 1.01 ± 0.20 | < 0.25 | < 0.52 | 0.17 ± 0.07 |
| Luminosity L′HCO+(5-4) (108 K km s−1 pc2) | < 7.6 | 11.1 ± 2.2 | < 4.0 | < 13.8 | 8.1 ± 3.4 |
| Average sample luminosity L′HCO+(5-4)c | 6.7 ± 1.3 | ||||
| HNC(5-4) and CN(4-3) (blended) | |||||
| Obs. HNC(5-4) frequency νobs (GHz) | 110.778 | – | 91.398 | 98.634 | 108.852 |
| Obs. CN(4-3) frequency νobs (GHz) | 110.860 | – | 91.466 | 98.707 | 108.933 |
| Full width at half maximum (km s−1) | – | – | – | 780 ± 212 | 726 ± 165 |
| S/N of the blendd | 2.3 | – | 2.5 | 3.5 | 2.6 |
| Total blended flux Itot (Jy km s−1) | < 0.58 | < 0.00 | < 0.45 | 0.37 ± 0.11 | 0.25 ± 0.09 |
| Blended lum. L′tot (108 K km s−1 pc2) | < 11.4 | < 0.0 | < 7.0 | 9.6 ± 2.8 | 11.5 ± 4.4 |
| Average sample luminosity L′HNC(5-4)c | 4.8 ± 1.6 | ||||
| Average sample luminosity L′CN(4-3)c | 2.2 ± 1.4 | ||||
Notes. We report the properties of lines of our detections and tentative detections (S/N ≥ 3). Upper limits correspond to 3σ. The blend between HNC(5-4) and CN(4-3) in SPT0551-50 can be considered as a tentative detection as justified in Fig. 1 and Appendix B.
The magnifications come from Spilker et al. (2016). We have no good lens model for SPT0551-50 and we thus assume the median magnification of the SPT sample of 6.3 (Spilker et al. 2016).
The average sample luminosity is determined combining detections and non-detections using the method described in Sects. 2.5 and 2.6.
The 13CO(4-3) line of SPT0125-47 is extracted assuming that the three lines have the same width and velocity offset as discussed in Sect. 2.3.
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