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Table A.2

Molecular lines detected in our survey towards W Aql.

No. Molecule Transition Eu ∕k Freq. Res. vmin vmax Iint Comments
(K) (MHz) (MHz) (km s−1) (km s−1) (mK km s−1)
1 Im(SiO) ∕ – 160 292.000 – – – – Image contamination (Table A.1).
2 SiS (t) 9− 8 39.2 163 376.781 3.1 −25.9 31.3 192.2 ± 15.4 Tentative.
3 30SiO (t) 4− 3 20.3 169 486.875 3.1 −17.2 32.0 254.8 ± 25.4 Tentative.
4 29SiO 4− 3 20.6 171 512.797 3.1 −38.5 25.0 295.2 ± 45.8
5 H13CN 2− 1 12.4 172 677.844 1.5 −22.7 22.8 543.9 ± 75.6
6 HC3 N (t) 19− 18 83.0 172 849.297 2.3 −16.7 7.5 72.6 ± 11.9 Tentative.
7 SiO 4− 3 20.8 173 688.234 1.5 −19.3 19.2 2313.0 ± 179.0
8 C2 H (t) N = 2− 1, J = 5∕2− 3∕2 12.6 174 664.000 6.1 −65.9 61.1 141.0 ± 61.1 Hyperfine structure. Tentative.
9 C2 H (t) N = 2− 1, J = 3∕2− 1∕2 12.6 174 725.000 6.1 −54.6 38.8 68.9 ± 35.2 Hyperfine structure. Tentative.
10 HCN 2− 1 12.8 177 261.109 0.8 −31.1 21.2 3005.2 ± 321.9
11 HCO+ (t) 2− 1 12.8 178 375.062 2.8 −26.1 26.7 47.5 ± 11.6 Tentative.
12 C34S (t) 4− 3 23.1 192 818.453 3.8 −18.1 17.0 163.8 ± 30.4 Tentative.
13 SiS 11− 10 57.5 199 672.234 3.1 −14.4 28.6 344.1 ± 48.0 Asymmetric.
14 HC3 N (t) 23− 22 120.5 209 230.234 3.7 −26.3 30.6 49.3 ± 5.9 Tentative.
15 Im(CO) ∕ – 209 861.000 – – – – Image contamination (Table A.1).
16 30SiS 12− 11 65.5 210 089.625 4.5 −15.2 17.9 41.9 ± 4.2
17 30SiO 5− 4 30.5 211 853.469 1.5 −23.7 16.8 561.1 ± 60.5 Blend with Si34S.
18 Si34S 12− 11 66.1 211 853.734 1.5 −23.3 17.2 557.1 ± 64.1 Blend with 30SiO.
19 SiC2 94,6 − 84,5 82.3 213 208.031 4.6 −26.4 19.0 62.5 ± 9.4
20 SiC2 94,5 − 84,4 82.3 213 292.344 4.6 −36.3 29.2 65.1 ± 5.4
21 29SiS 12− 11 66.7 213 816.141 3.1 −16.3 13.6 31.3 ± 10.1
22 29SiO 5− 4 30.9 214 385.750 1.5 −35.7 20.8 680.1 ± 49.7
23 SiO 5− 4 31.3 217 104.922 0.4 −31.0 26.9 5226.6 ± 124.5
24 13CN N = 2− 1, J = 3∕2− 1∕2 15.7 217 280.000 1.5 −71.5 28.3 283.2 ± 63.3 Hyperfine structure.
25 13CN N = 2− 1, J = 5∕2− 3∕2 15.7 217 405.000 1.8 −64.1 −10.1 101.2 ± 35.4 Hyperfine structure.
26 13CN N = 2− 1, J = 5∕2− 3∕2 15.7 217 469.000 1.8 −42.0 17.6 126.6 ± 39.3 Hyperfine structure.
27 SiS 12− 11 68.0 217 817.656 1.5 −49.6 32.8 674.9 ± 54.8
28 SiN N = 5− 4, J = 9∕2− 7∕2 31.4 218 008.000 1.5 −20.5 16.9 134.9 ± 35.5
29 HC3 N (t) 24− 23 131.0 218 324.719 1.8 −17.7 18.3 62.4 ± 12.6 Tentative.
30 SiN N = 5− 4, J = 11∕2− 9∕2 31.5 218 513.000 1.5 −20.7 16.5 112.6 ± 29.7
31 C18O 2− 1 15.8 219 560.359 1.5 −20.1 15.9 143.1 ± 44.9 Blend with unidentified feature.
32 u ∕ – 219 581.000 1.8 −18.2 43.6 186.3 ± 89.5 No candidate. Blend with C18O.
33 13CO 2− 1 15.9 220 398.688 0.4 −32.5 28.7 4182.7 ± 114.8
34 SiC2 100,10 − 90,9 59.8 220 773.688 1.5 −31.4 17.4 106.8 ± 26.1
35 SiC2 92,7 − 82,6 60.2 222 009.391 1.5 −25.7 14.6 106.6 ± 28.1
36 C17O 2− 1 16.2 224 714.203 2.3 −35.9 16.2 154.6 ± 31.6
37 CN N = 2− 1, J = 3∕2− 3∕2 16.3 226 310.000 1.5 −89.8 46.9 1145.8 ± 208.0 Hyperfine structure.
38 CN N = 2− 1, J = 3∕2− 1∕2 16.3 226 659.000 1.5 −54.0 77.8 4099.5 ± 182.0 Hyperfine structure.
39 CN N = 2− 1, J = 5∕2− 3∕2 16.3 226 876.000 1.5 −45.1 33.6 3513.1 ± 117.0 Hyperfine structure.
40 HC3 N (t) 25− 24 141.9 227 418.906 3.7 −19.4 18.6 56.2 ± 9.9 Tentative.
41 30SiS 13− 12 76.5 227 589.859 3.1 −26.0 14.6 60.8 ± 12.8
42 CO 2− 1 16.6 230 538.000 0.4 −37.6 24.2 58 918.6 ± 1654.7
43 13CS 5− 4 33.3 231 220.688 3.1 −20.0 21.6 127.1 ± 18.1
44 SiC2 102,9 − 92,8 69.6 232 534.062 1.9 −28.7 16.7 100.8 ± 32.6
45 SiC2 106,5 − 96,4 132.5 235 713.000 4.8 −22.9 23.4 56.6 ± 17.8 Doublet blend.
46 SiC2 106,4 − 96,3 132.5 235 713.062 4.8 −22.8 23.5 56.6 ± 17.8 Doublet blend.
47 SiS 13− 12 79.3 235 961.359 1.5 −33.0 31.5 832.0 ± 112.2 Irregular shape.
48 HC3 N (t) 26− 25 153.2 236 512.781 2.3 −22.6 24.7 41.2 ± 24.1 Tentative.
49 SiC2 104,7 − 94,6 93.7 237 150.016 4.2 −24.6 19.1 50.5 ± 18.2
50 SiC2 104,6 − 94,5 93.7 237 331.312 4.2 −20.3 21.2 90.4 ± 15.2
51 Im(SiO) ∕ – 239 295.000 – – – – Image contamination (Table A.1).
52 CS 5− 4 35.3 244 935.562 0.8 −33.6 19.9 3272.4 ± 230.3
53 30SiS (t) 14− 13 88.2 245 088.391 4.6 −12.6 15.9 28.2 ± 5.3 Tentative.
54 HC3 N (t) 27− 26 165.0 245 606.312 2.4 −15.7 24.4 63.6 ± 15.4 Tentative.
55 Im(HCN) ∕ – 246 125.000 – – – – Image contamination (Table A.1).
56 Si34S 14− 13 89.0 247 146.234 3.1 −32.4 17.0 77.3 ± 9.3
57 NaCl (t) 19− 18 118.7 247 239.734 4.9 −49.2 63.1 28.9 ± 25.5 Tentative.
58 SiC2 102,8 − 92,7 72.1 247 529.125 4.2 −18.9 18.0 110.2 ± 15.7
59 u ∕ – 249 401.000 2.4 −58.9 20.3 132.8 ± 88.8 No candidate.
60 29SiS 14− 13 89.8 249 435.406 2.4 −15.4 14.7 65.7 ± 7.6
61 Si17O 6− 5 42.1 250 744.688 4.9 −13.4 23.1 58.9 ± 2.7
62 SiS 14− 13 91.5 254 103.219 2.3 −31.7 18.0 887.1 ± 190.1
63 30SiO 6− 5 42.7 254 216.656 3.1 −18.4 17.5 491.9 ± 61.0
64 SiC2 (t) 112,10 − 102,9 81.9 254 981.500 5.3 −21.8 27.7 215.7 ± 92.9 Tentative.
65 NaCl (t) 20− 19 131.2 260 223.109 4.9 −46.8 65.8 5.3 ± 7.1 Tentative.
66 SiO 6− 5 43.8 260 518.016 1.5 −28.1 28.7 4905.4 ± 280.9
67 SiC2 114,8 − 104,7 106.2 261 150.688 5.3 −24.8 24.3 67.0 ± 10.3
68 HN13C 3− 2 25.1 261 263.516 4.9 −39.5 21.4 39.2 ± 12.6 Tentative.
69 SiC2 114,7 − 104,6 106.2 261 509.328 3.8 −23.0 21.7 59.7 ± 13.7
70 SiN N = 6− 5, J = 11∕2− 9∕2 43.9 261 650.000 1.5 −21.5 14.6 162.5 ± 35.6
71 SiC2 120,12 − 110,11 83.9 261 990.750 2.3 −16.3 18.5 200.5 ± 29.7 Blend with C2H.
72 C2 H N = 3− 2, J = 7∕2− 5∕2 25.1 262 005.000 2.3 −27.9 37.2 490.4 ± 47.2 Hyperfine structure. Blend with SiC2.
73 C2 H N = 3− 2, J = 5∕2− 3∕2 25.2 262 067.000 2.3 −54.0 21.3 294.7 ± 23.6 Hyperfine structure.
74 SiN N = 6− 5, J = 13∕2− 11∕2 44.1 262 155.000 2.3 −27.0 13.3 150.4 ± 27.0
75 C2 H (t) N = 3− 2, J = 5∕2− 5∕2 25.2 262 208.000 6.9 −63.7 8.6 21.6 ± 10.9 Hyperfine structure. Tentative.
76 30SiS 15− 14 100.8 262 585.031 3.1 −30.9 12.1 117.1 ± 20.2 Asymmetric.
77 HC3 N (t) 29− 28 189.9 263 792.312 4.9 −22.9 18.0 41.3 ± 8.3 Tentative.
78 Si34S 15− 14 101.7 264 789.719 3.1 −15.7 9.0 60.2 ± 13.2
79 HCN, v2 = 1 31 − 2−1 1049.9 265 852.719 1.5 −12.4 19.3 272.5 ± 13.8
80 HCN 3− 2 25.5 265 886.438 1.5 −33.8 25.7 12 283.4 ± 465.7
81 Im(CS) ∕ – 267 070.000 – – – – Image contamination (Table A.1).
82 HCN, v2 = 1 3−1 − 21 1050.0 267 199.281 3.1 −17.0 15.4 97.5 ± 9.9
83 29SiS 15− 14 102.6 267 242.219 3.1 −8.0 15.8 41.6 ± 4.6
84 HCO+ (t) 3− 2 25.7 267 557.625 2.4 −26.0 28.7 95.4 ± 29.0 Tentative.

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