Table A.6
Spectroscopic information of the transitions of methoxyacetaldehyde detected toward G+0.693-0.027, shown in Figure 6.
| Frequency (GHz) |
Transition(a) | log I (300 K) (nm2 MHz) |
Eup (K) |
Blending |
|---|---|---|---|---|
| 35.42961 (15) | 81,8–71,7 | −5.1429 | 8.8 | Unblended |
| 35.84289 (15) | 80,8–70,7 | −5.1243 | 7.7 | Slightly blended: 13CH2CHCN |
| 39.85602 (15) | 91,9–81,8 | −4.9907 | 10.7 | Unblended |
| 40.3145715 (17) | 90,9–80,8 | −4.9737 | 9.6 | Unblended |
| 40.3896344 (17) | 92,7–82,6 | −5.0014 | 14.6 | Slightly blended: U-line |
| 44.2818158 (23) | 101,10–91,9 | −4.8554 | 12.9 | Slightly blended: U-line |
| 44.7831474 (18) | 100,0–90,9 | −4.8396 | 11.7 | Blended: CH3C4H |
| 44.8303900 (18) | 102,9–92,8 | −4.8637 | 16.8 | Blended: H13COOH |
| 44.8860560 (19) | 102,8–92,7 | −4.8626 | 16.8 | Blended: U-line * |
| 45.3688132 (25) | 101,9–91,8 | −4.8347 | 13.1 | Blended: C2H5CHO |
| 49.2483433 (20) | 110,11–100,10 | −4.7190 | 14.1 | Blended: CH334SH |
Notes. (a)The rotational energy levels are labeled using the conventional notation for asymmetric tops: JKa,Kc. Numbers in parentheses represent the predicted uncertainty associated to the last digits. Transitions that were not used in the AUTOFIT owing to a non-negligible contamination with a U-line are flagged with an asterisk (*).
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