Table 2
Parameters of detected amide molecules.
| Source | θsource | NH213CHO | NH2CHO | CH3CONH2 | Ratioc | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (arcsec) | FTMW (km s−1) | VLSR (km s−1) | Tex (K) | N (cm−2) | FTMW (km s−1) | VLSR (km s−1) | N (cm−2) | XCH3OHb | FTMW (km s−1) | VLSR (km s−1) | Tex (K) | N (cm−2) | XCH3OHb | ||
| I15254 | 1.0 | 2.6 | −66.6 | 133a | (2.4±0.2)×1013 | 2.7 | −66.6 | (1.1±0.1)×1015 | (6.3±0.7)×10−4 | 3.4 | −66.6 | 133±28 | (2.5±0.9)×1014 | (1.4±0.5)×10−4 | 4.6±1.8 |
| I16065 | 2.9 | 2.7 | −60.1 | 150a | (4.2±0.3)×1013 | 5.4 | −59.5 | (1.9±0.1)×1015 | (1.5±0.2)×10−3 | 3.1 | −59.5 | 150±22 | (2.6±0.7)×1014 | (2.0±0.6)×10−4 | 7.3±2.1 |
| I16164 | 3.8 | 3.3 | −59.7 | 157a | (7.4±0.5)×1013 | 5.3 | −59.7 | (3.5±0.2)×1015 | (3.8±0.3)×10−3 | 2.8 | −59.7 | 154±38 | (5.5±2.4)×1014 | (6.1±2.6)×10−4 | 6.2±2.7 |
| I16272 | 1.4 | 2.8 | −45.9 | 110a | (1.2±0.2)×1014 | 5.1 | −46.3 | (5.6±1.2)×1015 | (1.8±0.4)×10−3 | 2.7 | −46.3 | 110±15 | (7.9±2.0)×1014 | (2.5±0.6)×10−4 | 7.1±2.3 |
| I16318 | 2.3 | 4.7 | −118.2 | 113a | (2.0±0.3)×1014 | 7.7 | −118.5 | (7.4±1.0)×1015 | (2.7±0.4)×10−3 | 3.6 | −117.8 | 113±18 | (8.3±2.5)×1014 | (3.0±0.9)×10−4 | 8.9±2.9 |
| I17008 | 1.3 | 4.4 | −19.5 | 125a | (1.4±0.3)×1014 | 7.4 | −19.1 | (7.0±1.7)×1015 | (2.2±0.5)×10−3 | 4.8 | −19.8 | 125±38 | (1.1±0.6)×1015 | (3.6±1.9)×10−4 | 6.1±3.5 |
| I17175 MM1 | 2.1 | 4.1 | −5.1 | 178a | (1.3±0.1)×1015 | 7.3 | −4.9 | (6.9±0.4)×1016 | (1.1±0.1)×10−2 | 4.4 | −4.5 | 178±40 | (1.5±0.6)×1016 | (2.4±1.0)×10−3 | 4.5±1.9 |
| I17175 MM2 | 1.6 | 3.8 | −8.7 | 154a | (1.51±0.01)×1014 | 3.1 | −8.7 | (8.2±0.7)×1015 | (1.3±0.1)×10−3 | 2.5 | −8.7 | 154±49 | (2.7±1.5)×1015 | (4.3±2.3)×10−4 | 3.0±1.7 |
| I18089 | 1.8 | 1.9 | 29.9 | 157±37 | (4.2±1.4)×1013 | 4.4 | 31.4 | (2.0±0.7)×1015 | (7.9±2.7)×10−4 | 4.1 | 29.9 | 157a | (6.9±1.3)×1014 | (2.7±0.5)×10−4 | 2.9±1.2 |
| I18411 | 0.9 | 2.1 | 105.5 | 117a | (3.0±0.3)×1013 | 5.2 | 105.8 | (1.2±0.1)×1015 | (1.3±0.1)×10−3 | 2.2 | 105.5 | 117±26 | (2.4±1.0)×1014 | (2.6±1.1)×10−4 | 4.9±2.0 |
Notes. a For NH213CHO, excitation temperature fitting errors are not provided due to fewer than three clean transitions. Column densities are derived by assuming the excitation temperatures for CH3CONH2. For CH3CONH2 in I18089, the column density is derived by assuming fixed excitation temperatures of NH213CHO, due to the small energy range of the upper level for the three detected lines of CH3CONH2. b Molecular abundances relative to CH3OH, where CH3OH column densities are adopted from Qin et al. (2022). c Molecular ratios of NH2CHO to CH3CONH2.
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