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Table 1
Spectroscopic parameters of the observed lines.
| Molecule | Transition | Rest frequency(a) | Eup | A |  |
|---|---|---|---|---|---|
| (MHz) | (K) | (×10−5 s−1) | cm−3 | ||
| CH3OH |  = 10,1–00,0 (A+) |
48 372.460(2) | 2.3(c) | 3.5 × 10−7 | 7 × 103 |
| CH3OH |  = 21,2–11,1 (E2) |
96 739.358(2) | 12.53(c) | 2.6 × 10−4 | 3 × 104 |
| CH3OH |  = 20,2–10,1 (A+) |
96 741.375(2) | 6.96(c) | 3.4 × 10−4 | 3 × 104 |
| CH3OH |  = 20,2–10,1 (E1) |
96 744.545(2) | 20.08(c) | 3.4 × 10−4 | 3 × 104 |
| CH3OH |  = 20,2–10,1 (E1–E2) |
108 893.945(2) | 13.10(c) | 1.47 × 10−5 | 5 × 10 |
| C18O | J = 1–0 | 109 782.173(2) | 5.27 | 6.3 × 10−8 | 2 × 103 |
| C18O | J = 2–1 | 219 560.354(2) | 15.81 | 6.0 × 10−7 | 2 × 104 |
Notes. (a) Frequencies and uncertainties from the CDMS (Müller et al. 2005). (b) n* is the critical density, calculated at 10 K. (c)Energy relative to the ground 00,0, A rotational state. (d) Calculated with the rate coefficient reported in Bizzocchi et al. (2014).
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