Table 5
Chemical composition relative to methanol of nine CALYPSO sources and two additional Class 0 protostars, and model results of Bergner et al. (2017).
| Source | Column density relative to CH3OH | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C2H5OH | CH3OCH3 | CH3OCHO | CH3CHO | NH2CHO | CH3CN | C2H5CN | (CH2OH)2 | CH2(OH)CHO | HNCO | NH2CN | ||
| IRAS2A1 | 2.2 (− 2) | 3.5 (− 2) | 3.9 (− 2) | 5.7 (− 3) | 4.4 (− 3) | 1.4 (− 2) | <7.7 (− 4) | 9.8 (− 3) | 2.3 (− 3)⋆ | 1.5 (− 2) | 4.7 (− 4) | |
| L483 | 5.9 (− 3) | 4.7 (− 3) | 7.6 (− 3) | 4.7 (− 3) | 5.9 (− 4) | n.a. | n.a. | n.a. | n.a. | 4.4 (− 3) | n.a. | |
| IRAS16293B | 2.3 (− 2) | 2.4 (− 2) | 2.6 (− 2) | 1.2 (− 2) | 1.2 (− 3) | 4.0 (− 3) | 3.6 (− 4) | 1.1 (− 2) | 6.8 (− 3) | 3.7 (− 3) | 2.0 (− 4) | |
| Group 1 | 1.7 (− 2) | 2.1 (− 2) | 2.4 (− 2) | 7.5 (− 3) | 2.1 (− 3) | 8.9 (− 3) | 3.6 (− 4) | 1.0 (− 2) | 4.6 (− 3) | 7.6 (− 3) | 3.4 (− 4) | |
| SVS13A | 7.4 (− 2) | 1.0 (− 1) | 1.0 (− 1) | 8.0 (− 3) | 5.8 (− 3) | 2.0 (− 2) | 2.0 (− 3) | 6.4 (− 3) | 3.0 (− 3) | 1.6 (− 2) | 1.1 (− 3) | |
| IRAS4A2 | 8.8 (− 2) | 1.0 (− 1) | 1.5 (− 1) | 4.5 (− 2) | 1.3 (− 2) | 1.8 (− 2) | 3.9 (− 3) | 2.1 (− 2) | 1.6 (− 2) | 1.8 (− 2) | 1.4 (− 3) | |
| IRAS4B | 9.7 (− 2) | 1.3 (− 1) | 3.6 (− 1) | 8.6 (− 2) | 2.5 (− 3) | 1.7 (− 2) | 4.6 (− 3) | <3.2 (− 2) | 2.1 (− 2) | 3.6 (− 2) | <2.3 (− 3) | |
| SerpM-S68N | <3.5 (− 1) | 1.3 (− 1)⋆ | 2.8 (− 1) | <4.4 (− 2) | <1.2 (− 2) | 2.7 (− 2) | <2.8 (− 2) | <1.3 (− 1) | <1.0 (− 1) | 1.0 (− 2)⋆ | <7.4 (− 3) | |
| Group 2 | 8.6 (− 2) | 1.2 (− 1) | 2.2 (− 1) | 4.6 (− 2) | 7.0 (− 3) | 2.0 (− 2) | 3.5 (− 3) | 1.4 (− 2) | 1.3 (− 2) | 2.0 (− 2) | 1.3 (− 3) | |
| L1448-2A | <3.2 (− 1) | <1.8 (− 1) | <1.2 (− 1) | <5.1 (− 2) | <1.3 (− 2) | 4.4 (− 2)⋆ | <3.6 (− 2) | <1.6 (− 1) | <7.3 (− 2) | <1.8 (− 2) | <1.0 (− 2) | |
| L1448-C | <5.5 (− 2) | 1.3 (− 1) | 6.5 (− 2) | 2.4 (− 2) | 2.0 (− 3) | 3.1 (− 2) | <4.9 (− 3) | <2.2 (− 2) | <1.3 (− 2) | 1.0 (− 2) | < 1.0 (− 3) | |
| SerpS-MM18a | 7.8 (− 2) | 1.2 (− 1) | 1.4 (− 1) | 2.8 (− 2) | 5.3 (− 3) | 5.9 (− 2) | 8.8 (− 3) | <1.8 (− 2) | <1.2 (− 2) | 3.2 (− 2) | < 1.5 (− 3) | |
| L1157 | <2.5 (− 1) | <1.2 (− 1) | 7.3 (− 2) | <3.9 (− 2) | <5.8 (− 3) | 3.5 (− 2) | <2.1 (− 2) | <9.9 (− 2) | <5.6 (− 2) | <7.8 (− 3) | <3.9 (− 3) | |
| Group 3 | 7.8 (− 2) | 1.2 (− 1) | 9.1 (− 2) | 2.6 (− 2) | 3.7 (− 3) | 4.2 (− 2) | 8.8 (− 3) | – | – | 2.1 (− 2) | – | |
| Model | (Bergner et al. 2017) | |||||||||||
| 1 L⊙ | – | 6(−3) | 4(−3) | 1.5(−4) | – | 1.3(−4) | – | – | – | 1.9(− 5) | – | |
| 10 L⊙ | – | 6(−3) | 4(−3) | 1.3(−4) | – | 1.3(−4) | – | – | – | 4(− 5) | – | |
Notes. The values in bold face are mean values over the group of sources that precedes. X (Y) means X × 10Y. Tentative detections are indicated with a star symbol. n.a. means not available, that is the column density of the molecule was not reported in the articles we compiled for L483 and IRAS16293B (see references in Sect. 3.7).
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