Table C.1
Detected spectral transitions of CH3COCH3, CH3CHO, CH3OH, 13CH3OH, and C2H5CN.
| Frequency | Transition | Sμ2 | Eup | Note |
|---|---|---|---|---|
| (MHz) | (D2) | (K) | ||
| CH3COCH3;v=0 | ||||
| 342324.944 | 30(6,25)–29(5,24) AA | 2018.37 | 282.73 | 1 |
| 342324.944 | 30(5,25)–29(6,24) AA | 1211.16 | 282.73 | 1 |
| 342410.641 | 17(17,1)–16(16,1) EA | 552.43 | 146.85 | |
| 342485.234 | 17(17,0)–16(16,0) EE | 2209.99 | 147.06 | * |
| 342553.854 | 42(3,39)–42(2,40) EE | 456.49 | 484.93 | |
| 342553.854 | 42(4,39)–42(3,40) EE | 456.49 | 484.93 | |
| 342594.888 | 17(17,1)–16(16,1) EE | 2210.27 | 146.95 | |
| 342780.035 | 17(17,1)–16(16,0) AA | 828.92 | 147.05 | |
| 342780.036 | 17(17,0)–16(16,1) AA | 1381.37 | 147.05 | |
| 342836.912 | 18(12,6)–17(11,7) AE | 68.59 | 141.3 | 2 |
| 342864.593 | 18(12,6)–17(11,7) AA | 208.58 | 141.24 | 3 |
| 342896.394 | 18(12,6)–17(11,7) EE | 548.97 | 141.27 | 3 |
| 343023.152 | 18(12,6)–17(11,7) EA | 133.9 | 141.31 | 2 |
| 343338.876 | 31(4,27)–30(5,26) EA | 881.62 | 288.66 | 4 |
| 343338.876 | 31(5,27)–30(4,26) EA | 881.62 | 288.66 | 4 |
| 343338.918 | 31(5,27)–30(5,26) AE | 1322.45 | 288.66 | 4 |
| 343338.918 | 31(4,27)–30(4,26) AE | 440.84 | 288.66 | 4 |
| 343386.006 | 31(4,27)–30(4,26) EE | 3176.31 | 288.63 | 5 |
| 343386.006 | 31(5,27)–30(5,26) EE | 3176.31 | 288.63 | 5 |
| 343386.006 | 31(4,27)–30(5,26) EE | 349.64 | 288.63 | 5 |
| 343386.006 | 31(5,27)–30(4,26) EE | 349.64 | 288.63 | 5 |
| 343433.081 | 31(4,27)–30(5,26) AA | 2203.26 | 288.61 | 6 |
| 343433.081 | 31(5,27)–30(4,26) AA | 1322.11 | 288.61 | 6 |
| 344468.948 | 32(4,29)–31(3,28) EA | 955.83 | 293.77 | |
| 344468.948 | 32(3,29)–31(4,28) EA | 955.83 | 293.77 | |
| 344468.985 | 32(3,29)–31(3,28) AE | 1433.77 | 293.77 | |
| 344468.985 | 32(4,29)–31(4,28) AE | 477.95 | 293.77 | |
| 344505.598 | 16(9,7)–15(8,8) EE | 183.87 | 109.49 | 7 |
| 344509.424 | 32(4,29)–31(3,28) EE | 3469.95 | 293.73 | 7 |
| 344509.424 | 32(4,29)–31(4,28) EE | 353.28 | 293.73 | 7 |
| 344509.424 | 32(3,29)–31(3,28) EE | 353.28 | 293.73 | 7 |
| 344509.424 | 32(3,29)–31(4,28) EE | 3469.95 | 293.73 | 7 |
| 344549.874 | 32(4,29)–31(3,28) AA | 2389.27 | 293.69 | |
| 344549.874 | 32(3,29)–31(4,28) AA | 1433.73 | 293.69 | |
| 344793.57 | 18(15,3)–17(14,3) EA | 397.32 | 150.91 | 8 |
| 344803.465 | 18(15,4)–17(14,3) AE | 595.35 | 150.81 | 8 |
| 344855.635 | 18(15,3)–17(14,4) AE | 198.44 | 150.81 | |
| 344866.506 | 18(15,4)–17(14,4) EA | 396.52 | 150.71 | 9 |
| 345037.5 | 18(15,3)–17(14,3) EE | 1589.87 | 150.87 | 10 |
| 345073.724 | 18(15,4)–17(14,4) EE | 1588.26 | 150.77 | 6 |
| 345256.037 | 18(15,4)–17(14,3) AA | 994.36 | 150.83 | |
| 345305.365 | 18(15,3)–17(14,4) AA | 596.65 | 150.83 | 1 |
| 345607.709 | 33(2,31)–32(2,30) EA | 1030.69 | 298.09 | 11 |
| 345607.709 | 33(3,31)–32(3,30) EA | 1030.69 | 298.09 | 11 |
| 345607.736 | 33(3,31)–32(3,30) AE | 1545.71 | 298.09 | 11 |
| 345607.736 | 33(2,31)–32(2,30) AE | 515.26 | 298.09 | 11 |
| 345639.619 | 33(3,31)–32(3,30) EE | 3529.95 | 298.03 | |
| 345639.619 | 33(3,31)–32(2,30) EE | 592.06 | 298.03 | |
| 345639.619 | 33(2,31)–32(2,30) EE | 3529.95 | 298.03 | |
| 345639.619 | 33(2,31)–32(3,30) EE | 592.06 | 298.03 | |
| 345671.524 | 33(2,31)–32(2,30) AA | 1545.65 | 297.98 | 1 |
| 345671.524 | 33(3,31)–32(3,30) AA | 2575.79 | 297.98 | 1 |
| 345673.954 | 15(7,8)–14(6,9) EE | 115.74 | 92.94 | 1 |
| 345875.586 | 24(12,12)–23(13,11) AE | 152.92 | 235.24 | 12 |
| 345877.896 | 24(12,12)–23(13,11) EA | 305.88 | 235.24 | 12 |
| 345912.434 | 15(7,8)–14(6,9) AA | 72.39 | 92.88 | 13 |
| 345973.657 | 24(12,12)–23(13,11) EE | 1221.85 | 235.24 | 6 |
| CH3CHO;v=0 | ||||
| 343779.382 | 18(2,17)–17(2,16) E | 224.63 | 166.47 | * |
| 343802.725 | 18(2,17)–17(2,16) A | 224.54 | 166.46 | 1 |
| CH3OH;v=0 | ||||
| 342729.796 | 13(1,12)–13(0,13) A | 97.52 | 227.47 | * |
| 344109.039 | 18(2,17)–17(3,15) E | 21.24 | 419.40 | 1 |
| 344443.433 | 19(1,19)–18(2,16) A | 23.97 | 451.23 | |
| 345903.916 | 16(1,15)–15(2,14) A | 28.52 | 332.65 | |
| 345919.260 | 18(3,15)–17(4,14) E | 22.41 | 459.43 | 2 |
| 13CH3OH;v=0 | ||||
| 344040.629 | 8(3,6)–9(2,8) | 2.17 | 144.49 | |
| 344671.733 | 3(3,0)–4(2,2) | 0.25 | 61.55 | 1 |
| 345083.793 | 2(2,0)–3(1,3) | 0.30 | 44.60 | |
| 345132.599 | 4(0,4)–3(1,3) | 1.55 | 35.76 | |
| C2H5CN;v=0 | ||||
| 342433.950 | 40(2,38)–39(3,37) | 30.09 | 360.89 | 1 |
| 342651.886 | 15(5,11)–14(4,10) | 9.20 | 79.39 | |
| 342677.561 | 15(5,10)–14(4,11) | 9.20 | 79.39 | |
| 343194.574 | 38(5,33)–37(5,32) | 553.54 | 347.41 | * |
| 343503.727 | 41(8,33)–41(7,34) | 32.96 | 441.47 | 2 |
| 343576.364 | 41(8,34)–41(7,35) | 32.96 | 441.47 | 3 |
| 343888.020 | 40(8,32)–40(7,33) | 32.01 | 423.82 | 4 |
| 343940.188 | 40(8,33)–40(7,34) | 32.01 | 423.82 | 2 |
| 344238.762 | 39(8,31)–39(7,32) | 31.06 | 406.61 | 4 |
| 344275.871 | 39(8,32)–39(7,33) | 31.06 | 406.61 | |
| 344278.941 | 10(6,4)–9(5,5) | 8.98 | 63.67 | |
| 344278.941 | 10(6,5)–9(5,4) | 8.98 | 63.67 | |
| 344558.366 | 38(8,30)–38(7,31) | 30.11 | 389.82 | |
| 344584.505 | 38(8,31)–38(7,32) | 30.12 | 389.82 | 2 |
| 344849.257 | 37(8,29)–37(7,30) | 29.18 | 373.47 | |
| 344867.347 | 37(8,30)–37(7,31) | 29.18 | 373.47 | 5 |
| 345113.287 | 36(8,28)–36(7,29) | 28.25 | 357.55 | |
| 345125.723 | 36(8,29)–36(7,30) | 28.25 | 357.55 | |
| 345314.812 | 36(3,34)–35(2,33) | 23.96 | 295.89 | 2 |
| 345352.535 | 35(8,27)–35(7,28) | 27.33 | 342.06 | |
| 345361.010 | 35(8,28)–35(7,29) | 27.32 | 342.06 | |
| 345568.673 | 34(8,26)–34(7,27) | 26.40 | 327.00 | 3 |
| 345574.337 | 34(8,27)–34(7,28) | 26.41 | 327.00 | 3 |
| 345763.372 | 33(8,25)–33(7,26) | 25.49 | 312.37 | |
| 345767.098 | 33(8,26)–33(7,27) | 25.49 | 312.37 | |
| 345921.198 | 39(3,37)–38(3,36) | 573.72 | 344.46 | 6 |
| 345938.020 | 32(8,24)–32(7,25) | 24.58 | 298.17 | |
| 345940.515 | 32(8,25)–32(7,26) | 24.58 | 298.17 | |
Notes. Sμ2 is the product of the line strength (S) and the square of the dipole moment (μ). Eup represents the upper level energy. Asterisks mark the transitions of the molecules that are used for Fig. 2.
CH3COCH3 transitions: (1) blended with 34SO2 transition lines; (2) blended with unidentified molecular lines; (3) blended with CS transition lines; (4) blended with H2CS transition lines; (5) blended with H2CCO transition lines; (6) blended with CH3OCHO transition lines; (7) blended with CH3OCH3 transition lines; (8) blended with (CH2OH)2 transition lines; (9) blended with CH2DOH and C2H5CN transition lines; (10) blended with HCOOH transition lines; (11) blended with HCCCN transition lines; (12) blended with H2C18O transition lines; (13) blended with C2H5CN transition lines.
CH3CHO transitions: (1) blended with H2CS transition lines.
CH3OH transitions: (1) blended with CH3OCHO (v=1) transition lines; (2) blended with C2H5CN transition lines. The 13(1,12)–13(0,13)A and 16(1,15)–15(2,14)A transitions of CH3OH are optically thick.
13CH3OH transitions: (1) blended with CH3OCHO transition lines.
C2H5CN transitions: (1) blended with CH2DOH transition lines; (2) blended with unidentified molecular lines; (3) blended with CH3OCHO (v=1) transition lines; (4) blended with CH3OCHO transition lines; (5) blended with CH2DOH and CH3COCH3 transition lines; (6) blended with CH3OH transition lines.
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