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Table 2
Abundances with respect to H2 of the observed species at 40 and 300 K for the LV and EHV gas.
| LV (9−25 km s-1) | (E)HV (26−55 km s-1) | |||||||||
| T = 40 K | T = 300 K | T = 40 K | T = 300 K | |||||||
| Mol. | ∫Tdv | N | X a | N | X a | ∫Tdv | N | X b | N | X b |
| (K km s-1) | (cm-2) | (10-8) | (cm-2) | (10-8) | (K km s-1) | (cm-2) | (10-8) | (cm-2) | (10-8) | |
|
|
||||||||||
| 13CO | 8.6 | 1.2×1016 | – | 6.4×1016 | – | – | – | – | – | – |
| 12COc | – | – | – | – | – | 31.4 | 2.0×1016 | – | 1.1×1017 | – |
| SiO | – | – | – | – | – | 61.9 | 8.3×1013 | 41 | 3.2×1014 | 29 |
| SO | 14.4 | 1.8×1014 | 1.9 | 7.3×1014 | 1.5 | 28.7 | 3.5×1014 | 170 | 1.5×1015 | 140 |
| p-H2CO | 14.6 | 1.5×1014 | 1.7 | 2.1×1015 | 4.3 | 5.8 | 6.2×1013 | 30 | 8.5×1014 | 79 |
Notes.
(a)
X(12C/13C)=77 (Wilson & Rood 1994).
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