Table 6
Total column densities derived with MADCUBA.
| Source | Ntot (cm−2) | |||||||
|---|---|---|---|---|---|---|---|---|
| Hydrocarbons | Cyanides | |||||||
| C2H | c-C3H | c-C3H2 | C4H | CH3CCH | HC3N | CH3CN | HC5N | |
| ×1012 | ×1012 | ×1012 | ×1012 | ×1012 | ×1012 | ×1012 | ×1012 | |
| G034-1 a | 43(4) | ≤0.8 | 4.8(0.5) | 9.8(0.9) d | 8.7(0.6) | 4.0(0.3) | ≤0.7 | ≤0.4 |
| G034-2 | 25(3) | − | 2.9(0.3) | 5.6(0.5) d | − | 1.4(0.3) | − | − |
| AFGL-1 b | 501(3) | 1.4(0.3) | 6.0(0.2) | ≤0.6 | 468(3) | 24.0(0.5) | − | 1.8(0.1) |
| AFGL-2 | − | − | − | − | − | 8.9(0.5) | 26.9(0.2) | − |
| G589-1 c | 1860(100) | ≤4 | 30(3) | ≤2.5 | 5100(60) | 229(2) | 147(1) | 10.5(1.2) |
| G589-2 | − | − | − | − | − | 126(2) | − | 6.0(1.1) |
Notes. The errors from the MADCUBA-AUTOFIT fitting are given in brackets. (a) Two velocity features centred at ~41.6 km s−1 (G034-1) and ~43.3 km s−1 (G034-2), respectively. (b) Two components with the same peak velocity but FWHM of ~2.6 km s−1 (AFGL-1) and ~6.6 km s−1 (AFGL-2), respectively. (c) Two components with the same peak velocity but FWHM of ~4 km s−1 (G589-1) and ~11 km s−1 (G589-2), respectively. (d) Computed assuming Tex from c-C3H2.
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