Table 3
Derived column density and temperature for CH2DOH and CH3OH.
| Position | RA | Dec | Size | Trot(CH2DOH) | N(CH2DOH) | Trot(CH3OH) | N(CH3OH) | [CH2DOH]/[CH3OH] | |
| 05h35m | −05°22′ | (K) | (cm-2) | (K) | (cm-2) | ||||
|
|
|||||||||
| dM-1 |
|
|
|
130a | 8.8 ± 0.9 × 1015 | ... | ... | ... | |
|
130a | 4.7 ± 0.5 × 1015 | 130a | 4.2 ± 0.4 × 1018 | 1.1 ± 0.2 × 10-3 | ||||
|
|
60 | 2.4 ± 0.3 × 1015 | 60.3 ± 3.7 | 2.1 ± 0.3 × 1018 | 1.1 ± 0.2 × 10-3 | ||||
| dM-2 |
|
|
|
85a | 2.4 ± 0.3 × 1015 | ... | ... | ... | |
|
|
85a | 1.7 ± 0.1 × 1015 | 85a | 2.2 ± 0.7 × 1018 | 7.7 ± 2.5 × 10-4 | ||||
|
|
66 | 1.4 ± 0.2 × 1015 | 66.2 ± 4.7 | 1.9 ± 0.3 × 1018 | 7.4 ± 1.6 × 10-4 | ||||
| dM-3 |
|
|
|
58 | 9.5 ± 4.5 × 1014 | ... | ... | ... | |
|
|
58 | 1.5 ± 0.1 × 1015 | 57.6 ± 1.8 | 1.7 ± 0.1 × 1018 | 8.8 ± 0.8 × 10-4 | ||||
| KL-W |
|
|
|
44 | < 3.0 × 1014 | ... | ... | ... | |
|
|
44 | < 2.0 × 1014 | 43.7 ± 4.3 | 9.2 ± 2.1 × 1017 | < 2.2 × 10-4 | ||||
Notes. The [CH2DOH]/[CH3OH] ratios are derived only for the clump size. For dM-1 and dM-2, the CH2DOH column densities are derived from the population diagrams, and CH3OH column densities and temperatures are derived for all sources from the population diagrams. The CH2DOH column density of dM-3 is derived only from the 52,4 − 42,3e0 line at 223 422.3 MHz, assuming a rotational temperature of 58 K (estimated from CH3OH). The positions of dM-1, dM-2, dM-3, and KL-W are given at Epoch J2000.0.
The methyl formate rotational temperatures derived by Favre et al. (2011) are adopted here for CH2DOH and CH3OH.
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