Table 2
Spectral parameters of observed acetone transitions.
| Frequency | Transition | Eup/k | S μ2 | gs | Comment |
| (MHz) | (JKa,Kc) | (K) | (D2) | ||
|
|
|||||
| 101 297.450 (0.061) | 2413,12−2412,13 EE | 235.5 | 105.7 | 16 | Partially blended with an NH2CHO line |
| 101 426.664 (0.010) | 91,8−82,7 AE | 26.9 | 61.9 | 6 | |
| 101 426.759 (0.009) | 91,8−82,7 EA | 26.9 | 61.9 | 4 | |
| 101 427.041 (0.010) | 92,8−81,7 AE | 26.9 | 61.9 | 2 | |
| 101 427.130 (0.009) | 92,8−81,7 EA | 26.9 | 61.9 | 4 | |
| 101 451.059 (0.008) | 91,8−82,7 EE | 26.8 | 61.9 | 16 | |
| 101 451.446 (0.008) | 92,8−81,7 EE | 26.8 | 61.9 | 16 | |
| 101 475.332 (0.011) | 91,8−82,7 AA | 26.7 | 61.8 | 10 | Partially blended with an H2CS line |
| 101 475.734 (0.011) | 92,8−81,7 AA | 26.7 | 61.8 | 6 | Partially blended with an H2CS line |
| 203 336.247 (0.036) | 274,23−273,24 EA | 225.8 | 39.0 | 4 | Blended with an NH2CHO line |
| 275,23−274,24 EA | 225.8 | 39.0 | 4 | Blended with an NH2CHO line | |
| 203 336.291 (0.037) | 274,23−273,24 AE | 225.8 | 13.0 | 6 | Blended with an NH2CHO line |
| 275,23−274,24 AE | 225.8 | 117.1 | 2 | Blended with an NH2CHO line | |
| 223 512.409 (0.012) | 168,9−157,8 EE | 103.8 | 60.9 | 16 | Possibly blended with a C2H513CN linea |
| 223 621.690 (0.016) | 168,9−157,8 AA | 103.7 | 60.9 | 10 | Partially blended with an HCOOCH3 line |
| 223 684.608 (0.012) | 176,11−167,10 EA | 110.8 | 80.6 | 4 | Blended with the U223686.7 line |
| 223 684.610 (0.012) | 176,11−167,10 AE | 110.8 | 80.6 | 6 | Blended with the U223686.7 line |
| 223 692.004 (0.012) | 177,11−166,10 EA | 110.8 | 80.6 | 4 | Partially blended with the U223694.8 line |
| 223 692.104 (0.012) | 177,11−166,10 AE | 110.8 | 80.6 | 2 | Partially blended with the U223694.8 line |
| 223 732.826 (0.032) | 129,4−118,4 EE | 66.1 | 8.7 | 16 | Blended with the U223733.6 line |
| 223 767.585 (0.010) | 176,11−167,10 EE | 110.7 | 80.6 | 16 | Blended with the U223767.6 line |
| 223 775.253 (0.010) | 177,11−166,10 EE | 110.7 | 80.6 | 16 | Possibly blended with a 13C2H5CN linea |
| 223 850.417 (0.014) | 176,11−167,10 AA | 110.7 | 80.5 | 10 | Partially blended with an HCOOCH3 line |
| 223 858.308 (0.145) | 177,11−166,10 AA | 110.7 | 80.5 | 6 | Possibly blended with a 13C2H5CN linea |
| 225 744.082 (0.011) | 194,15−185,14 EE | 122.1 | 117.6 | 16 | |
| 195,15−184,14 EE | 122.1 | 117.6 | 16 | ||
| 225 811.979 (0.046) | 139,5−128,4 EE | 75.4 | 36.9 | 16 | Possibly blended with a 13C2H5CN line |
| 228 979.750 (0.023) | 1210,2−119,2 EA | 68.7 | 62.6 | 4 | Blended with the U228979.0 line |
| 229 033.736 (0.015) | 221,21−212,20 AE | 133.1 | 173.2 | 2 | |
| 222,21−211,20 AE | 133.1 | 173.2 | 6 | ||
| 229 033.771 (0.015) | 221,21−211,20 EA | 133.1 | 173.2 | 4 | |
| 222,21−212,20 EA | 133.1 | 173.2 | 4 | ||
| 229 041.826 (0.024) | 1210,3−119,3 EE | 68.6 | 61.1 | 16 | |
| 229 055.797 (0.011) | 221,21−212,20 EE | 133.1 | 26.4 | 16 | |
| 221,21−211,20 EE | 133.1 | 146.8 | 16 | ||
| 222,21−212,20 EE | 133.1 | 142.2 | 16 | ||
| 222,21−211,20 EE | 133.1 | 31.0 | 16 | ||
| 229 058.049 (0.010) | 149,6−138,5 EE | 85.4 | 35.4 | 16 | |
| 229 077.788 (0.018) | 221,21−212,20 AA | 133.0 | 173.2 | 6 | |
| 222,21−211,20 AA | 133.0 | 173.2 | 10 | ||
Notes.Acetone spectroscopic data were taken from the JPL database based on the compilation of several data sets (Groner et al. 2002; Oldag & Sutter 1992; Vacherand et al. 1986; White 1975; Peter & Dreizler 1965). Upper-state energy Eup/k, effective line strength Sμ2, and spin statistical weight gs are also given. Additionally, only the transitions with an upper-state energy below 300 K and a frequency uncertainty smaller than 1 MHz are listed here. Transitions with Eup/k higher than 300 K are all blended and not listed in this table.
Possibly blended with 13C-substituted ethyl cyanide lines at HC, but their contributions are minor (<10%, see also Fig. 5).
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