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Table A.1
Observational parameters and sensitivity of IRAM observations.
| Molecule | Transition | Frequency | Beam size | δv | rms |
| (MHz) | (arcsec) | (ms-1) | (K) | ||
|
|
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| 1st setting | |||||
|
|
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| 12CO | J=1 → 0 | 115271.197@ | 23 | 200 | 0.24@ |
| 12CO | J=2 → 1 | 230537.990@ | 12 | 100 | 0.15@ |
|
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| 2nd setting | |||||
|
|
|||||
| 13CO | J=1 → 0 | 110201.370@ | 24 | 27 | 0.15@ |
| 13CO | J=2 → 1 | 220398.686@ | 12 | 53 | 0.15@ |
| 13CO | J=1 → 0 | 110201.370@ | 24 | 27 | 0.90a |
| 13CO | J=2 → 1 | 220398.686@ | 12 | 53 | 0.90a |
| C18O | J=1 → 0 | 109782.182@ | 24 | 27 | 0.15@ |
| C18O | J=1 → 0 | 109782.182@ | 24 | 27 | 0.90a |
|
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| 3rd setting | |||||
|
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| N2H+ | J=1 → 0 | 93173.764b | 27 | 31 | 0.04@ |
| C18O | J=2 → 1 | 219560.358@ | 12 | 53 | 0.05@ |
Notes.
(b)
Main hyperfine components, frequency from Pagani et al. (2009).
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