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Table 1
Molecular lines in addition to CO observed toward IRS48 (parameters taken from the Cologne Database for Molecular Spectroscopy, Müller et al. 2001, 2005).
| Molecule | Transition | Rest frequency | E u | 10log(Auℓ) |
| (GHz) | (K) | |||
|
|
||||
| H2CO | 9(1, 8)–8(1, 7) | 674.80978 | 174 | −2.04 |
| CH3OH | 4(2, 2)–3(1, 3) | 678.78546 | 61 | −2.87 |
| H13CO+ | 8–7 | 693.87633 | 150 | −1.56 |
| CN | 611/2–511/2 | 678.84488 | 114 | −5.35 |
| 34SO2 | 13(5, 9)–12(4, 8) | 691.99178 | 143 | −2.67 |
| C34S | 14–13 | 674.47362 | 180 | −2.27 |
| HNCO | 9(1, 9)–10(0, 10) | 678.23827 | 91 | −2.80 |
| c-C3H2 | 10(10, 1)–9(9, 0) | 693.68725 | 182 | −1.77 |
| N2D+ | 9–8 | 693.80616 | 167 | −1.42 |
| D2O | 4(2, 2)–4(1, 3) | 692.24358 | 236 | −1.80 |
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