Table 4
Information of lines used as thermometers.
| C | MM3 | MM2 | F1 | F2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Molecule | Transition | Eup (K) | Tmb (K) | ΔV (km s−1) | Tmb (K) | ΔV (km s−1) | Tmb (K) | ΔV (km s−1) | Tmb (K) | ΔV (km s−1) | Tmb (K) | ΔV (km s−1) |
| CH3CCH | 5(0)–4(0) | 12.3 | 0.75 | 5.18, 2.36 | 1.80 | 1.88, 4.29 | 2.4 | 5.20 | 0.38 | 2.34, 1.9 | 0.20 | 3.5 |
| 6(3)–5(3) | 81.5 | 0.1 | 0.65 | 1.3 | - | - | ||||||
| H2CS | 3(1,3)–2(1,2) | 22.9 | 0.65,0.62 | 3.41,3.20 | 3.0 | 2.33,5.19 | 5.50 | 4.20,11.70 | 0.20,0.12 | 2.18,5.69 | 0.10 | 2.0 |
| 3(0,3)–2(0.2)(a) | 9.89 | 0.60,0.40 | 1.78 | 3.80 | 0.15,0.08 | 0.08 | ||||||
| 3(2,2)–2(2,1)(a) | 62.6 | |||||||||||
| 3(2,1)–2(2,0) | 62.6 | <0.05 | 0 20 | 1.0 | <0.05 | <0.05 | ||||||
| CH2CHCN(b) | 9(3,7)–8(3,6) | 39.9 | 0.80 | 5.89 | ||||||||
| 9(6,3)–8(6,2) | 98.2 | 0.75 | ||||||||||
| 9(3,6)–8(3,5) | 39.9 | 0.80 | ||||||||||
| 9(7,2)–8(7,1) | 126.2 | 0.30 | ||||||||||
Notes. The peak intensity (Tmb) and corresponding line-width (ΔV = 2.355σv) are shown for each source. Whenever there are two velocity components, both line-widths are listed ,while the peak intensity is contributed from both components. For CH3CCH only two representative transitions are shown whilst for both (5–4) and (6–5) line series all the k ladders are used in the fits, whenever robustly detected. (a)The two lines blend with each other. The listed line parameters are contributed from both lines.(b) Vinyl cyanide (CH2CHCN) is only detected towards the center of clump MM2.
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