Table 2
Overview of the properties of the lines detected with ALMA.
| Physical | Technical | |||||||
| Molecule | Transition | ν | E u | ncrit(100 K) | θ beam | σ ch - rms | n clip | v int |
| [GHz] | [K] | [cm-3] | [ ] |
[mJy beam-1] | [km s-1] | |||
|
|
||||||||
| 13CS | 2–1 | 92.494 | 6.66 | 3.3 ×105 | 1.93 × 1.57 | 0.52 | 3 | –130–130 |
| N2H+ | 1–0 | 93.174 | 4.47 | 2.0 ×105 | 1.93 × 1.57 | 0.53 | 4 | –150–100 |
| H51β | 93.607 | 1.93 × 1.57 | 0.54 | 3 | –370–340 | |||
| CH3OH-A | 80–71 | 95.169 | 83.50 | 7.9 ×105 | 1.89 × 1.55 | 0.52 | 3 | –120–130 |
| H49β | 105.302 | 1.72 × 1.44 | 0.54 | 3 | –350–320 | |||
| H39α | 106.737 | 1.75 × 1.48 | 0.62 | 3 | –440–400 | |||
| CS | 5–4 | 244.936 | 35.30 | 5.4 ×106 | 0.76 × 0.59 | 0.91 | 5 | –150–200 |
| HC3N | 27–26 | 245.606 | 165.03 | 0.76 × 0.59 | 0.87 | 3 | –70–100 | |
| H36β | 260.033 | 0.70 × 0.55 | 1.10 | 3 | –330–340 | |||
| H13CO+ | 3–2 | 260.255 | 24.98 | 3.3 ×106 | 0.70 × 0.55 | 1.10 | 3 | –80–110 |
| SiO | 6–5 | 260.518 | 43.76 | 8.3 ×106 | 0.70 × 0.55 | 0.90 | 4 | –150–210 |
| SO 3Σ | 67–56 | 261.844 | 47.60 | 3.7 ×106 | 0.70 × 0.56 | 1.00 | 4 | –80–100 |
| C2H | 33.5, 4–22.5, 3 | 262.004 | 25.15 | 6.3 ×106 | ||||
| C2H | 33.5, 3–22.5, 2 | 262.006 | 25.15 | 6.5 ×106 | ||||
| C2H | 32.5, 3–21.5, 2 | 262.065 | 25.16 | 6.7 ×106 | 0.70 × 0.56 | 1.00 | 4 | –190–80 |
| C2H | 32.5, 2–21.5, 1 | 262.067 | 25.16 | 6.9 ×106 | ||||
| H33β | 335.207 | 0.50 × 0.42 | 1.28 | 5 | –390–100 | |||
| CH3OH-E | 7-1–6-1 | 338.345 | 70.60 | 1.3 ×106 | 0.50 × 0.42 | 1.28 | 3 | –80–100 |
| CH3OH-A | 70–60 | 338.409 | 65.00 | 1.4 ×106 | ||||
| SiO | 8–7 | 347.331 | 75.02 | 2.0 ×107 | 0.48 × 0.41 | 1.90 | 4 | –150–200 |
Notes. Listed are the frequencies ν; upper state energies Eu; critical densities ncrit in the two-level approximation for given kinetic temperature based on data from the Leiden Atomic and Molecular Database (LAMDA; Schöier et al. 2005, http://home.strw.leidenuniv.nl/~moldata/); beam sizes θbeam, channel noise σch - rms, and noise clipping level from nclipσch - rms per line cube; velocity range vint over which the integrated flux maps were obained.
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