Table B.2
Spectroscopic and observational line parameters for CH3NC.
| Freq. | Transition | Eup | A | vlsr | Tpeak | Δv1∕2 | W | Nup/gup | Comments |
|---|---|---|---|---|---|---|---|---|---|
| (GHz) | (K) | (10−4 s−1) | (km s−1) | (K) | (km s−1) | (K km s−1) | (1010 cm−2) | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
| 240.795 | 129–119 | 647 | 5.16 | – | ≤0.8 | – | ≤6.4 | ≤1.4 | ND |
| 240.888 | 128–118 | 527 | 6.57 | – | ≤0.8 | – | ≤6.4 | ≤2.2 | ND |
| 240.969 | 127–117 | 421 | 7.80 | – | ≤0.8 | – | ≤6.4 | ≤1.8 | ND |
| 241.040 | 126–116 | 329 | 8.88 | – | ≤1.3 | – | ≤8.3 | ≤1.1 | B |
| 241.100 | 125–115 | 252 | 9.79 | – | ≤0.8 | – | ≤6.4 | ≤1.5 | B |
| 241.149 | 124–114 | 188 | 10.54 | – | ≤0.8 | – | ≤6.4 | ≤1.4 | B |
| 241.187 | 123–113 | 139 | 11.12 | – | ≤4.0 | – | ≤32.1 | ≤3.3 | B |
| 241.215 | 122–112 | 103 | 11.53 | – | ≤4.0 | – | ≤32.1 | ≤6.3 | B |
| 241.231 | 121–111 | 82 | 11.79 | – | ≤2.7 | – | ≤21.7 | ≤4.2 | B |
| 241.237 | 120–110 | 75 | 11.87 | – | ≤2.7 | – | ≤21.7 | ≤4.1 | B |
| 100.490 | 54–44 | 54 | 0.29 | – | ≤0.6 | – | ≤4.2 | ≤13.0 | B |
| 100.506 | 53–43 | 194 | 0.52 | – | ≤0.1 | – | ≤0.5 | ≤0.4 | ND |
| 100.517 | 52–42 | 127 | 0.68 | – | ≤0.1 | – | ≤0.5 | ≤0.7 | ND |
| 100.524 | 51–41 | 145 | 0.78 | – | ≤0.1 | – | ≤0.5 | ≤0.6 | ND |
| 100.527 | 50–40 | 151 | 0.81 | – | ≤0.1 | – | ≤0.5 | ≤0.6 | ND |
Notes. (1) Frequencies. (2) Transition. (3) Energy of the upper level. (4) Einstein coefficient. (5) LSR velocity. (6) Brightness temperature. (7) Line width at half intensity. (8) Integrated intensities over the line profile. (9) Column densities of the upper state of the transition with respect to the rotational degeneracy. (10) Blended (B) and not detected (ND) lines are specified.
References.We used the spectroscopic data parameters from Bauder & Bogey (1970) and Cernicharo et al. (1988) for CH3NC, which are available in the JPL catalog (Pickett et al. 1998).
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