Table 2:
Detected transitions of the first torsionally excited state of HCOOCH3 in W51 e2.
|
Transitiona |
 |
 |
Frequency |
Obs. Freq. b |
 |
 |
Commentd |
|
|
(D2) |
(cm-1) |
(MHz) |
(MHz) |
(K km s-1) |
(mK) |
|
1(8) |
7(4, 4)-6(4, 3) A |
12.5 |
146.86 |
85 327.104 |
85 326.864 |
1.22 |
87 |
|
2(5) |
7(4, 3)-6(4, 2) A |
12.5 |
146.86 |
85 360.669 |
85 359.685 |
0.40 |
81 |
|
3 |
7(3, 5)-6(3, 4) A |
15.1 |
143.62 |
85 371.762 |
85 371.871 |
0.67 |
102 |
|
4 |
7(6, 2)-6(6, 1) E |
4.94 |
155.53 |
85 456.630 |
85 456.067 |
14.33 |
1133 |
CH3CCH |
5(2) |
7(4, 3)-6(4, 2) E |
12.6 |
146.60 |
85 506.175 |
85 506.053 |
0.57 |
84 |
|
6 |
7(5, 3)-6(5, 2) E |
9.12 |
150.40 |
85 553.365 |
85 553.361 |
0.54 |
78 |
|
7 |
10(2, 9)-10(1, 10) A |
1.40 |
151.83 |
85 664.038 |
85 664.621 |
1.06 |
61 |
C2H3CN |
8(1) |
7(4, 4)-6(4, 3) E |
12.5 |
146.22 |
85 743.967 |
85 743.915 |
0.79 |
102 |
|
9(10) |
7(2, 5)-6(2, 4) A |
17.0 |
141.50 |
88 998.368 |
88 997.692 |
0.77 |
83 |
|
10(9) |
7(2, 5)-6(2, 4) E |
17.1 |
141.01 |
89 140.383 |
89 140.161 |
1.20 |
120 |
|
11 |
25(5, 20)-25(4, 21) A |
8.29 |
274.84 |
107 021.644 |
107 021.862 |
1.99 |
186 |
|
12 |
9(2, 8)-8(2, 7) E |
22.6 |
146.68 |
107 022.162 |
- |
- |
- |
|
13 |
10(1, 9)-9(2, 8) A |
2.14 |
150.76 |
107 472.351 |
107 472.400 |
0.27 |
45 |
|
14 |
9(3, 7)-8(3, 6) E |
20.8 |
149.16 |
111 005.617 |
111 005.832 |
2.67 |
261 |
|
15 |
9(1, 8)-8(1, 7) E |
23.2 |
146.08 |
111 094.105 |
111 094.010 |
2.27 |
244 |
|
16(17) |
12(0, 12)-11(0, 11) A |
31.4 |
155.85 |
131 536.624 |
131 536.949 |
3.53 |
407 |
|
17(16) |
12(0, 12)-11(0, 11) E |
31.6 |
155.29 |
131 612.344 |
131 612.094 |
3.97 |
410 |
|
18 |
12(1, 12)-11(0, 11) A |
4.87 |
155.85 |
131 764.316 |
131 765.100 |
1.70 |
100 |
S18O |
19 |
11(5, 7)-10(5, 6) A |
23.1 |
164.85 |
134 531.846 |
134 531.411 |
3.44 |
478 |
SO2
 |
20 |
27(7, 20)-27(6, 21) A |
8.58 |
304.51 |
134 545.609 |
134 546.431 |
7.95 |
630 |
C3H2CN + 33SO2 |
21 |
11(7, 5)-10(7, 4) E |
17.4 |
175.45 |
134 545.615 |
- |
- |
- |
- |
22 |
35(8, 27)-35(7,28) A |
12.6 |
416.62 |
134 553.290 |
134 553.647 |
0.71 |
991 |
33SO2 |
23(25) |
11(5, 6)-10(5, 5) A |
23.1 |
164.85 |
134 585.070 |
134 584.263 |
4.68 |
382 |
C3H2CN
,
and ? |
24 |
11(3, 9)-10(3, 8) E |
26.7 |
156.97 |
134 713.629 |
134 713.062 |
3.59 |
456 |
|
25(23) |
11(5, 6)-10(5, 5) E |
23.3 |
164.70 |
134 739.630 |
134 739.110 |
3.55 |
386 |
|
26(28) |
12(2, 11)-11(2, 10) A |
30.6 |
159.00 |
140 020.525 |
140 020.145 |
2.96 |
472 |
|
27 |
11(2, 9)-10(2, 8) A |
28.1 |
155.98 |
140 166.667 |
140 166.502 |
3.42 |
528 |
|
28(26) |
12(2, 11)-11(2, 10) E |
30.8 |
158.50 |
140 324.728 |
140 324.321 |
7.66 |
470 |
|
29 |
13(1, 13)-12(1, 12) E |
34.2 |
159.69 |
142 032.334 |
142 031.811 |
4.52 |
586 |
|
30(31) |
13(0, 13)-12(0, 12) A |
34.0 |
160.24 |
142 052.800 |
142 052.867 |
5.95 |
724 |
|
31(30) |
13(0, 13)-12(0, 12) E |
34.2 |
159.68 |
142 125.416 |
142 125.086 |
4.01 |
559 |
|
32 |
13(1, 13)-12(0, 12) A |
5.34 |
160.24 |
142 185.220 |
142 184.202 |
0.81 |
121 |
|
33(35) |
15(0, 15)-14(1, 14) A |
6.27 |
170.07 |
163 042.398 |
163 042.050 |
2.32 |
363 |
|
34(38) |
15(1, 15)-14(1, 14) A |
39.3 |
170.07 |
163 086.032 |
163 085.494 |
6.39 |
884 |
HCOOCH3
 |
35(33) |
15(0, 15)-14(1, 14) E |
6.07 |
169.52 |
163 113.094 |
163 113.656 |
5.11 |
549 |
SO2 |
36(39) |
15(0, 15)-14(0, 14) A |
39.3 |
169.52 |
163 118.722 |
163 118.285 |
19.40 |
2184 |
SO2 |
37 |
14(1, 13)-13(1, 12) E |
36.2 |
168.12 |
163 142.587 |
163 141.991 |
7.69 |
967 |
|
38(34) |
15(1, 15)-14(1, 14) E |
39.6 |
162.52 |
163 154.325 |
163 153.604 |
8.99 |
855 |
|
39(36) |
15(0, 15)-14(0, 14) E |
39.6 |
169.52 |
163 185.864 |
163 185.586 |
5.15 |
679 |
|
40 |
15(1, 15)-14(0, 14) E |
6.07 |
169.52 |
163 227.097 |
163 227.290 |
4.23 |
448 |
|
41(44) |
16(0, 16)-15(1, 15) A |
6.73 |
175.51 |
173 616.616 |
173 617.000 |
1.80 |
177 |
|
42(46) |
16(1, 16)-15(1, 15) A |
42.0 |
175.51 |
173 641.411 |
173 636.978 |
15.14 |
1288 |
HCOOCH3
 |
43(47) |
16(0, 16)-15(0, 15) A |
42.0 |
175.51 |
173 660.281 |
173 659.384 |
4.12 |
380 |
|
44(41) |
16(0, 16)-15(1, 15) E |
6.50 |
175.51 |
173 683.479 |
173 186.987 |
17.8 |
5300 |
CH3CHO |
45 |
24(3, 21)-24(2, 22) A |
4.32 |
254.06 |
173 704.470 |
173 706.183 |
9.03 |
644 |
|
46(42) |
16(1, 16)-15(1, 15) E |
42.2 |
174.96 |
173 706.683 |
173 706.183 |
- |
- |
|
47(43) |
16(0, 16)-15(0, 15) E |
42.2 |
174.97 |
173 724.731 |
173 724.558 |
2.02 |
479 |
|
48 |
16(1, 16)-15(0, 15) E |
6.6 |
174.97 |
173 747.990 |
173 748.150 |
3.94 |
264 |
|
49(51) |
16(5, 11)-15(5, 10) E |
38.2 |
191.37 |
198 384.885 |
198 384.516 |
5.23 |
467 |
|
50 |
26(8,19)-26(7, 20) A |
6.92 |
297.43 |
198 429.332 |
198 428.202 |
1.67 |
231 |
c-C2H4 |
51(49) |
16(5, 11)-15(5, 10) A |
38.3 |
191.52 |
198 539.350 |
198 541.500 |
19.44 |
1400 |
HCOOCH3
 |
52 |
16(5, 12)-15(5, 11) E |
38.1 |
191.05 |
198 578.563 |
198 577.928 |
3.20 |
484 |
|
53 |
19(3, 16)-18(4, 15) A |
2.8 |
208.13 |
207 295.959 |
207 296.361 |
5.16 |
159 |
CH3CH2CN |
54 |
17(12, 5)-16(12, 4) A |
21.2 |
252.96 |
207 354.058 |
207 352.197 |
5.57 |
557 |
|
55 |
17(12, 6)-16(12, 5) A |
21.2 |
252.96 |
- |
- |
- |
- |
|
56 |
17(13, 5)-16(13, 4) E |
18.8 |
264.55 |
207 376.777 |
207 378.506 |
11.46 |
995 |
CH2NH |
57 |
17(9, 8)-16(9, 7) E |
32.5 |
223.90 |
207 397.312 |
207 396.134 |
8.62 |
758 |
|
58 |
17(11, 6)-16(11, 5) A |
26.2 |
242.28 |
207 404.993 |
207 404.612 |
5.67 |
690 |
|
59 |
17(11, 7)-16(11, 6) A |
26.2 |
242.28 |
- |
- |
- |
- |
|
60 |
17(10, 8)-16(10, 7) A |
29.5 |
232.53 |
207 500.297 |
207 499.521 |
4.8 |
897 |
|
61 |
17(10, 7)-16(10, 6) A |
29.5 |
232.53 |
- |
- |
- |
- |
|
62 |
19(2, 18)-18(1, 17) A |
6.56 |
199.21 |
215 130.469 |
215 130.828 |
2.59 |
394 |
CH3CH2CN |
63(67) |
18(5, 13)-17(5, 12) A |
44.1 |
205.21 |
225 648.010 |
225 647.974 |
5.16 |
1103 |
HCOOCH3
 |
64 |
19(2, 17)-18(2, 16) A |
48.7 |
203.74 |
225 702.569 |
225 698.559 |
184 |
1400 |
H2CO |
65 |
6(6, 1)-5(5, 0) A |
2.59 |
148.59 |
225 727.540 |
225 726.732 |
2.55 |
372 |
CH2DCN |
66 |
6(6, 0)-5(5, 1) A |
2.59 |
148.59 |
225 727.552 |
- |
- |
- |
- |
67(63) |
18(5, 13)-17(5, 12) E |
43.4 |
205.06 |
225 756.154 |
225 755.178 |
7.3 |
927 |
|
68 |
7(6, 1)-6(5, 2) A |
25.6 |
229.84 |
237 899.08 |
237 896.263 |
15.91 |
1.667 |
NH2CHO |
69 |
20(3, 18)-19(2, 17) A |
5.37 |
211.27 |
237 969.273 |
237 969.938 |
12.80 |
1.186 |
unidentified species |
70 |
37(7, 31)-37(6, 32) A |
8.54 |
434.55 |
238 027.934 |
238 026.742 |
1.12 |
122 |
|
71 |
20(14, 7)-19(14, 6) E |
27.1 |
299.15 |
244 000.464 |
243 999.803 |
7.82 |
596 |
|
72 |
20(15, 6)-19(15, 5) A |
23.3 |
312.58 |
244 048.806 |
244 048.230 |
90.33 |
10.84 |
H2CS |
73 |
20(15, 5)-19(15, 4) A |
23.3 |
312.58 |
- |
- |
- |
- |
- |
74 |
19(4, 15)-18(4, 14) A |
18.4 |
209.57 |
244 066.113 |
244 066.720 |
5.49 |
730 |
|
75 |
20(14, 7)-19(14, 6) A |
14.2 |
299.10 |
244 073.956 |
244 073.440 |
3.54 |
314 |
unidentified species |
76 |
20(14, 6)-19(14, 5) A |
14.2 |
299.10 |
- |
- |
- |
- |
|
77 |
20(10, 10)-19(10, 9) E |
39.9 |
254.74 |
244 112.669 |
244 112.254 |
2.65 |
677 |
|
78(82) |
20(13, 8)-19(13, 7) A |
21.0 |
286.55 |
244 119.960 |
244 119.708 |
2.95 |
886 |
|
79 |
20(13, 7)-19(13, 6) A |
21.0 |
286.55 |
- |
- |
- |
- |
|
80 |
20(12, 8)-19(12, 7) A |
34.0 |
274.94 |
244 198.512 |
244 198.232 |
7.43 |
1107 |
|
81 |
20(12, 9)-19(12,8) A |
34.0 |
274.94 |
- |
- |
- |
- |
|
82(78) |
20(13, 8)-19(13, 7) E |
30.7 |
286.54 |
244 207.619 |
244 206.113 |
7.33 |
893 |
unidentified species |
a The notation for the quantum numbers is the same as Table 1 except that it does not contain information on the parity of the level, i.e. the signs present in Table 1 (associated to
for the E species and in a separate column for the A species) have been suppressed;
b observed frequencies for a systemic velocity of
km s-1;
c the line width is of the order of 7-8 km s-1;
d this column indicates the molecules blended with the detected HCOOCH3
transitions.
The dashes indicates that the value is the same as the one in the previous line.
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