Formation of ethylene glycol and other complex organic molecules in star-forming regions

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Table B.2

Unblended transitions of ET identified in the interferometric SMA spectra towards G31.

Frequency	Transition^a	E_up
(GHz)		(K)

220.15478	24(3, 22)−24(2, 23)	263
220.99889	13(0, 13)−12(0, 12), v_t = 1−1	135.5
229.49113	17(5, 12)−17(4, 13)	160.1
230.67255	13(2, 11)−12(2, 10), v_t = 0−0	138.6
230.79386	6(5, 2)−5(4, 2), v_t = 0−1	104.8
230.95378	16(5, 11)−16(4, 12)	145.8
230.99137	14(0, 14)−13(1, 13)	85.5

Notes.

^(a)

The transitions of the gauche state of ethanol are designated with v_t = 0 (gauche +) and v_t = 1 (gauche –), while the transitions without v number correspond to the trans state.

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