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Table 3
Observed molecular species, rest frequencies, rotational quantum numbers of the transitions, rotational constants, rotational partition function, Einstein A coefficients, energy of lower state, degeneracy of upper state, velocity resolution, Beff and HPBWs.
| Molecule | ν (GHz) | J | B (Hz) | Qrot (Tex = 7.5K) | A (s−1) | El (K) | gu | dv (km s1) | Beff | θ(") |
|---|---|---|---|---|---|---|---|---|---|---|
| HC18O+ | 85.1621570 | 1–0 | 4.26e10 | 3.90 | 3.6450E–05 | 0.00 | 3 | 0.6876 | 0.81 | 28.89 |
| H13CO+ | 86.7542884 | 1–0 | 4.34e10 | 3.83 | 3.8539E–05 | 0.00 | 3 | 0.6749 | 0.81 | 28.36 |
| HN13C | 87.0908500 | 1–0 | 4.35e10 | 3.82 | 2.3840E–05 | 0.00 | 3 | 0.6723 | 0.81 | 28.25 |
| HNCO | 87.9250443 | 4–3 | 1.11e10 | 36.90 | 8.7801E–06 | 6.33 | 9 | 0.6659 | 0.81 | 27.98 |
| HCN | 88.6304160 | 1–0 | 4.43e10 | 3.88 | 8.0884E–06 | 0.00 | 3 | 0.6606 | 0.81 | 27.76 |
| N2H+ | 93.1761300 | 1–0 | 4.66e10 | 3.71 | 3.6300E–05 | 0.00 | 3 | 0.0628 | 0.80 | 26.40 |
| C18O | 109.7821734 | 1–0 | 5.49e10 | 3.11 | 6.2661E–08 | 0.00 | 3 | 0.0533 | 0.78 | 22.41 |
| CH3OH | 145.1031850 | 3–2 | 2.47e10 | 13.25 | 1.2323E–05 | 6.96 | 7 | 0.4035 | 0.73 | 16.95 |
| H2CO | 145.6029490 | 2–1 | 3.88e10 | 10.52 | 7.8127E–05 | 3.49 | 5 | 0.4021 | 0.73 | 16.90 |
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