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Table 10
Column densities for HNCO, CH3CHO, CH3OCH3 using excitation temperatures from Table 7.
| Species | Bobs/Bemiss | NGC 7538 IRS9 | W3 IRS5 | AFGL490 |
| N (cm-2) | N (cm-2) | N (cm-2) | ||
|
|
||||
| HNCOext | 5′′/5′′ | 4.0 ± 1.3 × 1013 | 1.8 ± 0.3 × 1013 | 6.0 ± 2.2 × 1012 |
| HNCOcomp | 5′′/2′′ | 1.1 ± 0.3 × 1014 | 1.4 ± 0.6 × 1014 | <4 × 1013 |
| CH3OCH3 | 5′′/2′′ | 3.3 ± 1.0 × 1014 | 9.7 ± 4 × 1013 | 4.5 ± 1.9 × 1014 |
| CH3CHO | 5′′/5′′ | 3.1 ± 0.4 × 1013 | < 1.1 × 1013 | <1.3 × 1013 |
Notes. Bobs refers to the beam size of the telescope used to obtain the molecular lines (5′′ for IRAM and 2′′ for SMA) and Bemiss to the beam size from where the line emission is assumed to be coming from.
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