Open Access
Table 4.
CH2DOH and CHD2OH column densities calculated with LTE and optically thin assumptions using different excitation temperatures.
| N/1012 cm−2 (a) |
||||||
|---|---|---|---|---|---|---|
| Tex = | 5 K | 6.5 K | 8 K | 5 K | 6.5 K | 8 K |
| Core | H-MM1 | L694-2 | ||||
| CH2DOH 11, 1-10, 1 | 1.6±0.4 | 1.6±0.3 | 1.8±0.4 | 1.3±0.3 | 1.3±0.3 | 1.5±0.3 |
| CH2DOH 21, 1-20, 2 | 2.1±0.5 | 1.8±0.3 | 1.8±0.4 | 1.7±0.3 | 1.4±0.4 | 1.4±0.3 |
| CHD2OH 20, 1-10, 1 | 1.3±0.2 | 1.2±0.2 | 1.2±0.2 | 0.7±0.1 | 0.8±0.2 | 0.9±0.2 |
| CHD2OH 21, 2-11, 2 | 1.2±0.2 | 1.4±0.3 | 1.6±0.3 | 0.7±0.1 | 0.7±0.1 | 0.7±0.1 |
| B68 | L1521E | |||||
| CH2DOH 11, 1-10, 1 | < 0.5 | < 0.6 | < 0.6 | 0.2±0.1 | 0.2±0.1 | 0.2±0.1 |
| CH2DOH 21, 1-20, 2 | < 0.8 | < 0.7 | < 0.7 | < 0.3 | < 0.3 | < 0.3 |
| CH2DOH 20, 2-10, 1 | – | – | – | 0.5±0.1 | 0.5±0.1 | 0.6±0.1 |
| CHD2OH 20, 1-10, 1 | < 2.0 | < 2.0 | < 2.0 | < 0.7 | < 0.7 | < 0.7 |
| CHD2OH 21, 2-11, 2 | < 0.8 | < 0.9 | < 1.0 | < 0.3 | < 0.4 | < 0.4 |
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