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Table A.1

Properties of the molecular lines analysed in this work.

Molecule Transition Frequency log10(Aij) Eu gu Reference
(GHz) (s−1) (K)
CH3OH 141,13 - 140,14 349.106997 -3.356 260.2 116 van der Marel et al. (2021b)
CH3OH[1] 40,4 - 31,3 350.687662 -4.0619 36.3 36 van der Marel et al. (2021b)
CH3OH 11,1 - 00,0 350.905100 -3.4795 16.8 12 van der Marel et al. (2021b)
CH3OH[2] 9−5,4 - 9−4,6, 351.236479 -4.43803 240.5 76.0 This work
CH3OH 110,11 - 101,9 360.848946 -3.9183 166.0 92 van der Marel et al. (2021b)
CH3OH[2] 31,2 - 42,2 361.236506 -3.57681 339.2 28.0 This work
CH3OH 81,7,1 - 72,6,1 361.852195 -4.1125 104.6 68 van der Marel et al. (2021b)
CH3OH 161,15 - 160,16 363.440442 -3.3179 332.6 132 This work
CH3OH 72,6 - 61,5 363.739868 -3.7677 87.3 60 van der Marel et al. (2021b)
CH3OCH3[3] 201,20 - 190,19 361.863445 -3.4051 184.5 164 This work
CH3OCH3[3] 201,20 - 190,19 AE + EA 361.863446 -3.4051 184.5 246 This work
CH3OCH3[3] 201,20 - 190,19 EE 361.863547 -3.4051 184.5 656 This work
CH3OCH3[3] 201,20 - 190,19 AA 361.863648 -3.405 184.5 410 This work
CH3OCH3[3] 201,20 - 190,19 AE 361.863693 -3.2054 184.5 123 This work
CH3OCH3[3] 201,20 - 190,19 EE 361.863782 -3.2055 184.5 328 This work
CH3OCH3[3] 201,20 - 190,19 AA 361.863871 -3.2055 184.5 205 This work
CH3OCH3 113,8 - 102,9 AE 361.871157 -3.6652 72.9 69 This work
CH3OCHO[4] 323,30 - 313,29 E 363.482855 -3.16595 303.9 65 This work
CH3OCHO[4] 323,30 - 312,29 E 363.482881 -3.14442 303.9 130 This work
CH3OCHO[4] 322,30 - 312,29 E 363.485165 -3.16594 303.9 65 This work
CH3OCHO[4] 322,30 - 312,29 E 363.485187 -3.14442 303.9 130 This work
CH3OCHO[4] 322,30 - 313,29 A 363.487618 -3.89252 303.9 65 This work
CH3OCHO[4] 322,30 - 313,29 A 363.487661 -4.02862 303.9 130 This work
CH3OCHO[4] 323,30 - 312,29 A 363.488265 -3.89249 303.9 65 This work
CH3OCHO[4] 323,30 - 312,29 A 363.488271 -4.02872 303.9 130 This work
CH3OCHO[4] 323,30 - 313,29 E 363.490703 -3.16593 303.9 65 This work
CH3OCHO[4] 323,30 - 313,29 E 363.490764 -3.14442 303.9 130 This work
NO[1] 41 - 43 350.689494 -5.2662 36.2 10.0 This work
NO[1] 41 - 43 350.690766 -5.3032 36.2 8.0 This work
NO[5] 41 - 43 351.043524 -5.2649 36.2 10.0 This work
NO[5] 41 - 44 351.051705 -5.3019 36.2 8.0 This work
NO[5] 41 - 43 351.051705 -5.316 36.2 6.0 This work
SO2 214,18 - 213,19 363.159262 -3.397 252.1 43.0 This work

The line frequencies, Einstein A coefficients, upper energy levels (Eup), and degeneracies (gu) are taken from the Cologne Database for Molecular Spectroscopy (CDMS) (Müller et al. 2001, 2005; Pickett et al. 1998). [1]Blended methanol and nitric oxide lines. [2] Weak methanol lines fitted at a different column density.[3]Blended dimethyl ether lines. [4]Blended methyl formate lines. [5]Blended nitric oxide lines.

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