Table 2
Molecular transitions observed, with their frequencies, upper-level energies Eup, upper-level degeneracy gup, Einstein spontaneous emission coefficient Aul.
| Molecule | Transition | Frequency (MHz) | Eup (K) | g up | Aul (s-1) | Notes |
|
|
||||||
| HCO | 101 3/2, 2–000 1/2, 1 | 86 670.76 | 4.2 | 5 | 4.69 × 10-6 | (1) |
| HCO | 101 3/2, 1–000 1/2, 0 | 86 708.36 | 4.2 | 3 | 4.60 × 10-6 | (1) |
| HCO | 101 3/2, 1–000 1/2, 1 | 86 777.46 | 4.2 | 3 | 4.61 × 10-6 | (1) |
| HCO | 101 1/2, 0–000 1/2, 1 | 86 805.78 | 4.2 | 1 | 4.71 × 10-6 | (1) |
| CH3O E | 10−1 3/2, 1–00 1 3/2 , 1 | 82 341.515 | 4.0 | 3 | 3.255 × 10-6 | (1) |
| CH3O E | 2-1−1 3/2, 1 –11–1 1/2, 0 | 82 367.891 | 17.4 | 3 | 6.60 × 10-6 | (1) |
| CH3O E | 21−1 3/2, 1–1-1–1 1/2, 0 | 82 370.263 | 17.4 | 3 | 6.50 × 10-6 | (1) |
| CH3O E | 2-1 −1 3/2, 2 –11–1 1/2, 1 | 82 398.376 | 17.4 | 5 | 9.75 × 10-6 | (1) |
| CH3O E | 21−1 3/2, 2–1-1–1 1/2, 1 | 82 398.879 | 17.4 | 5 | 9.75 × 10-6 | (1) |
| CH3O E | 21−1 3/2, 1–1-1–1 1/2, 1 | 82 409.609 | 17.4 | 3 | 3.251 × 10-5 | (1) |
| CH3O E | 2-1 1 3/2, 1–11–1 1/2, 1 | 82 416.751 | 17.4 | 3 | 3.251 × 10-6 | (1) |
| CH3O E | 10 1 3/2, 1–00–1 1/2, 0 | 82 455.980 | 4.0 | 3 | 6.521 × 10-6 | (1) |
| CH3O E | 10−1 3/2, 2–00–1 1/2, 1 | 82 458.252 | 4.0 | 5 | 9.781 × 10-6 | (1) |
| CH3O E | 10−1 3/2, 2–00 1 1/2, 1 | 82 471.825 | 4.0 | 5 | 9.783 × 10-6 | (1) |
| CH3O E | 10−1 3/2,1–00 1 1/2, 0 | 82 524.180 | 4.0 | 3 | 6.526 × 10-6 | (1) |
| CH3O E | 10 1 3/2, 1–00–1 1/2, 1 | 82 545.726 | 4.0 | 3 | 3.264 × 10-6 | (1) |
| CH3OH E | 5-1–40 | 84 521.169 | 40.4 | 11 | 1.97 × 10-6 | (2) |
| CH3OH A+ | 21–11 | 95 914.309 | 21.5 | 5 | 2.494 × 10-6 | (3) |
| CH3OH E | 2-1–1-1 | 96 739.362 | 12.5 | 5 | 2.557 × 10-6 | (3), (4) |
| CH3OH A+ | 20–10 | 96 741.375 | 7.0 | 5 | 3.408 × 10-6 | (3), (4) |
| CH3OH E | 20–10 | 96 744.550 | 20.1 | 5 | 3.408 × 10-6 | (3), (4) |
| CH3OH E | 21–11 | 96 755.511 | 28.0 | 5 | 2.624 × 10-6 | (3), (4) |
| CH3OH A− | 21–11 | 97 582.804 | 21.6 | 5 | 2.627 × 10-5 | (5) |
| CH3OH A+ | 31–40 | 10 7013.803 | 28.4 | 7 | 6.131 × 10-6 | (2) |
| CH3OH E | 00–1-1 | 108 893.963 | 13.1 | 1 | 1.470 × 10-5 | (1) |
| CH3OH A+ | 31–21 | 143 865.797 | 28.4 | 7 | 1.069 × 10-5 | (1) |
| CH3OH E | 30–20 | 145 093.707 | 27.1 | 7 | 1.232 × 10-5 | (4), (5), (7) |
| CH3OH E | 3-1–2-1 | 145 097.370 | 19.5 | 7 | 1.095 × 10-5 | (4), (5), (7) |
| CH3OH A+ | 30–20 | 145 103.152 | 13.9 | 7 | 1.232 × 10-5 | (4), (5), (7) |
| CH3OH E | 32–22 | 145 126.190 | 36.2 | 7 | 6.767 × 10-6 | (4), (5), (7) |
| CH3OH E | 3-2–2-2 | 145 126.392 | 39.9 | 7 | 6.855 × 10-6 | (4), (5), (7) |
| CH3OH E | 31–21 | 145 131.855 | 35.0 | 7 | 1.124 × 10-5 | (4), (5), (7) |
| CH3OH A− | 31–21 | 146 368.344 | 28.6 | 7 | 1.126 × 10-5 | (7) |
| CH3OH A+ | 21–30 | 156 602.413 | 21.5 | 5 | 1.785 × 10-5 | (6) |
| CH3OH E | 40–4-1 | 157 246.056 | 36.4 | 9 | 2.098 × 10-5 | (4), (6), (7) |
| CH3OH E | 10–1-1 | 157 270.851 | 15.5 | 3 | 2.205 × 10-5 | (4), (6), (7) |
| CH3OH E | 30–3-1 | 157 272.369 | 27.1 | 7 | 2.146 × 10-5 | (4), (6), (7) |
| CH3OH E | 20–2-1 | 157 276.058 | 20.1 | 5 | 2.182 × 10-5 | (4), (6), (7) |
| CH3OH A+ | 11–20 | 205 791.270 | 16.8 | 3 | 3.362 × 10-5 | (4) |
| CH3OH E | 20–1-1 | 254 015.340 | 20.1 | 5 | 1.902 × 10-5 | (4) |
| CH3OH E | 21–10 | 261 805.710 | 28.0 | 5 | 5.572 × 10-5 | (4) |
Notes. Quantum numbers are NKaKcJF for HCO, JK for CH3OH, and NK;Λ;J;F for CH3O. HCO (Saito 1972) and CH3O (Endo et al. 1984) data are taken from the JPL spectroscopic database (Pickett et al. 1998). Data for CH3OH are from the CDMS catalogue Müller et al. (2001, 2005) and were originally determined by Xu & Lovas (1997) and Müller et al. (2004). (1) Observations of all sources carried out in 2012; (2) Observations of L1689B carried out in 2012; (3) Observations of all sources except L429 and L1709A carried out in 2011−2012; (4) Observations of L1689B, L1709A and L429 carried out in 2003; (5) Observations of all sources except L1689B carried out in 2012; (6) Observations of L1512, L1517B and L1521E carried out in 2012; (7) Observations of L1689B carried out in 2013 and 2014.
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