Table B.3
Obtained abundances with respect to H2 in B1b-S (this work), and towards the B1b envelope observed with the IRAM 30 m. The D/H obtained for acetaldehyde and methyl formate for the hot and cold components in B1b-S are also shown.
| Species |  |
D∕H | |||
|---|---|---|---|---|---|
| Hot (200 K) | Cold (60 K) | Env. (10 K) | Hot (200 K) | Cold (60 K) | |
| NH2CN | 7.1 × 10−14 | 9.1 × 10−14 | |||
| HNCO | 2.1 × 10−11 | – | 1.2 × 10−10 | ||
| 13CH3OH | 3.6 × 10−10 | – | 8.6 × 10−11 | ||
| CH3CHO | 5.7 × 10−11 | 1.4 × 10−11 | 2.0 × 10−11 | ||
| CH3CHO νt = 1 | 2.8 × 10−11 | – | |||
| CH3CDO | 2.8 × 10−12 | 3.6 × 10−12 | 0.05 | 0.25 | |
| NH2CHO | 2.8 × 10−13 | 3.6 × 10−13 | |||
| CH3OCH3 | 7.1 × 10−10 | 9.1 × 10−10 | 3.9 × 10−11 | ||
| t-CH3CH2OH | 1.4 × 10−11 | 1.8 × 10−11 | |||
| CH2CHCN | 2.8 × 10−12 | 1.8 × 10−12 | 8.2 × 10−12 | ||
| t-CH2CHCHO | 2.1 × 10−12 | 1.8 × 10−12 | |||
| CH2OHCHO | 3.6 × 10−11 | 2.7 × 10−11 | |||
| CH3OCOH | 1.1 × 10−9 | 0.4 × 10−9 | 3.9 × 10−11 | ||
| CH3OCOH νt = 1 | 1.4 × 10−10 | – | |||
| CH3OCOH νt = 2 | 5.7 × 10−11 | – | |||
| 13CH3OCOH | 2.1 × 10−11 | 2.7 × 10−11 | |||
| CH3OCOD | 2.1 × 10−11 | 4.5 × 10−11 | 0.02 | 0.10 | |
| CH2DOCOH | 2.8 × 10−11 | 9.1 × 10−11 | 0.03 | 0.20 | |
| aGg’-(CH2OH)2 | 1.4 × 10−11 | 0.7 × 10−11 | |||
| gGg’-(CH2OH)2 | 6.4 × 10−12 | 5.4 × 10−12 | |||
| t-CH3CH2OCOH | 3.3 × 10−11 | 0.7 × 10−11 | |||
Notes.The second and fifth columns correspond to the compact and hot component (200 K, 0.35″), and the third and sixth columns to the extended and cold one (60 K, 0.60′′). For vibrational excited transitions and HNCO, only the hot component was considered. Abundances for the envelope (fourth column) are from Marcelino et al. (2009), Cernicharo et al. (2012), and Marcelino et al. (in prep.). Blank spaces mean the molecule was not detected in the IRAM 30 m observations. (a) Using N(H2) = 1.4 × 1025 cm−2 at 0.35′′, N(H2) = 1.1 × 1025 cm−2 at 0.60′′ (see text), and N(H2) = 7.6 × 1022 cm−2 for the envelope (Daniel et al. 2013).
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