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Table A.1

Line parameters for the CO isotopes.

# Source Type Dgal Δ v12 Δ v13 Δv18
(kpc) (km s−1) (km s−1) (K) (km s−1) (km s−1) (K) (K km s−1) (km s−1) (km s−1) (K) (K km s−1)
1 G027.7954–00.2772 YSO 6.0 45.2 6.6 5.7 46.6 3.6 6.1 25.4 46.6 2.6 3.1 8.7
2 G027.9334+00.2056 HII 4.0 43.7 7.5 6.6 42.3 2.7 5.7 18.3 42.6 2.8 3.2 8.9
3 G028.1467–00.0040A YSO 4.5 96.5 10.9 7.9 97.7 1.4 4.2 14.6 98.8 2.9 4.7 15.1
4 G028.1467–00.0040B HII 4.5 96.1 6.8 3.4 98.3 1.7 3.3 5.7 98.7 1.2 3.1 5.0
5 G028.2007–00.0494A HII 4.6 96.5 16.3 20.3 96.2 13.2 6.3 96.0 98.0 3.6 8.3 48.8
6 G028.2007–00.0494B HII 4.6 96.5 15.0 23.3 94.4 5.1 7.5 50.0 95.9 6.6 5.6 40.8
7 G028.2325+00.0394 YSO 4.0 105.5 14.5 8.7 107.1 4.6 2.1 13.1 106.7 2.4 2.2 3.9
8 G028.2461+00.0134 HII 4.0 104.5 5.5 15.0 105.5 2.7 10.4 30.7 107.0 3.4 1.4 4.9
9 G028.2875–00.3639 HII 4.0 48.0 7.9 73.8 47.5 7.3 6.6 59.7 47.7 3.4 5.9 23.8
10 G028.3271+00.1617 YSO 5.0 24.4 8.3 8.8 25.7 4.3 5.2 24.3 25.3 4.4 2.9 13.4
11 G028.3373+00.1189 YSO 4.9 79.6 11.6 6.3 81.2 5.7 4.2 24.6 80.8 2.3 4.4 9.0
12 G028.6096+00.0170 HII 4.1 101.2 2.4 20.7 103.2 4.8 12.5 74.2 102.8 4.3 5.1 23.9
13 G028.6520+00.0271 HII 4.1 103.2 8.2 9.6 103.4 4.0 8.5 40.1 104.1 5.3 3.0 17.4
14 G028.6874+00.1772 HII 4.5 83.5 4.2 17.8 84.1 3.7 9.1 42.1 84.0 3.2 2.7 7.4
15 G028.7014+00.0478 diffuse HII 4.4 100.1 8.9 19.0 99.9 2.1 5.9 14.7 99.6 1.1 2.0 2.1
16 G028.8392–00.2507 diffuse HII 4.6 89.2 9.6 28.5 89.1 3.3 8.2 30.6 87.1 2.4 3.7 9.7
17 G028.8621+00.0657 YSO 4.1 104.8 7.1 15.2 103.9 4.8 15.2 84.0 103.0 3.3 8.3 31.0
18 G029.8620–00.0444 YSO 4.9 99.8 8.4 31.2 101.4 5.2 14.8 81.7 101.0 3.0 7.3 24.3
19 G029.9564–00.0174 HII 4.9 96.3 8.9 45.0 97.3 5.5 22.0 132.2 97.5 4.0 9.6 40.8
20 G030.0240–00.0427 diffuse HII 4.6 92.9 6.1 34.6 93.3 4.0 11.5 52.2 92.8 3.0 2.5 8.5
21 G030.0261+00.1088 diffuse HII 4.3 106.0 5.1 14.1 105.1 3.0 5.2 17.1 105.5 2.1 2.7 5.9
22 G030.1981–00.1691 YSO 4.9 103.5 8.2 30.4 103.1 4.3 12.9 60.3 102.5 3.0 4.3 14.3
23 G030.2531+00.0536 HII 4.7 70.1 6.1 13.8 71.3 4.6 4.1 19.4 70.2 3.6 2.5 9.4
24 G030.2971+00.0549 HII 4.9 107.2 4.3 24.5 108.1 2.5 8.2 21.4 107.5 2.3 4.1 10.1
25 G030.3101–00.2142 diffuse HII 4.4 101.8 4.1 20.1 102.4 2.2 9.8 24.7 103.2 1.6 3.9 5.5
26 G030.3782+00.1068 diffuse HII 4.3 109.6 3.1 13.2 110.4 1.5 5.7 9.4 110.1 1.3 2.0 2.8
27 G030.3830–00.1099 HII 4.8 86.1 2.4 2.6 86.5 3.2 14.4 48.9 86.6 2.2 3.4 9.1
28 G030.4117–00.2277 YSO 4.9 103.9 4.1 20.1 104.7 3.8 17.4 71.3 105.2 2.1 3.1 6.6
29 G030.5345+00.0209 HII 4.4 47.1 6.7 39.4 48.3 4.6 18.5 89.9 47.8 4.0 4.0 16.1
30 G030.5889–00.0426 HII 4.4 42.8 4.9 12.1 42.0 9.2 4.6 46.8 41.7 2.9 5.6 17.5
31 G030.5942–00.1273 YSO 5.0 83.4 4.8 14.3 84.7 3.0 2.5 7.9 84.7 1.5 2.4 4.0
32 G030.6848–00.2613 HII 5.0 103.0 6.9 23.5 102.8 5.5 10.3 60.6 103.5 3.6 5.6 21.1
33 G030.6877–00.0729 HII 5.0 92.0 10.2 23.6 94.8 8.5 5.4 48.2 92.0 4.1 4.8 23.5
34 G030.6931–00.0474 diffuse HII 4.7 91.2 11.6 34.4 88.9 7.5 6.0 63.9 89.4 5.6 3.2 18.1
35 G030.7206–00.0826 HII 5.0 92.9 10.9 28.3 92.4 8.6 6.1 56.1 93.0 4.2 7.3 33.6
36 G030.7498+00.0134 diffuse HII 4.6 93.1 6.8 6.2 93.0 12.3 3.5 36.1 92.7 8.2 1.4 12.0
37 G030.7581–00.0487 diffuse HII 4.6 93.6 12.3 23.7 93.4 13.0 3.4 45.8 92.7 7.8 1.2 8.6
38 G030.7653–00.0352C HII 5.0 82.1 6.1 17.9 81.0 3.4 4.6 16.5 80.7 3.2 1.9 4.8
39 G030.7808–00.0222 diffuse HII 4.6 93.1 6.1 18.0 93.0 4.9 6.7 34.3 91.9 3.6 1.6 6.2
40 G030.8053–00.0403 diffuse HII 4.6 91.5 11.3 16.9 92.8 6.6 7.7 54.2 93.0 4.5 2.3 11.4
41 G030.8185+00.2729 YSO 5.0 98.0 10.5 9.7 98.6 3.9 6.9 29.3 98.0 3.9 1.5 6.1
42 G030.8667+00.1141 HII 4.4 38.7 8.7 26.8 39.1 6.0 11.8 75.8 39.3 4.3 3.4 15.1
43 G030.8786+00.0566 YSO 5.0 75.7 5.5 8.0 76.1 3.0 7.0 22.1 75.3 2.3 3.6 9.2
44 G030.9726-00.1410 YSO 5.0 77.9 5.5 14.3 77.8 3.6 6.5 25.8 77.4 2.2 3.6 8.6
45 G030.9959–00.0771 YSO 5.0 81.1 4.2 28.0 81.2 2.9 13.2 41.4 81.5 2.1 6.2 14.2
46 G031.0494+00.4698 HII 4.4 33.0 7.1 13.1 33.8 4.3 6.8 31.4 33.6 1.8 2.5 6.5
47 G031.0702+00.0498 HII 4.5 37.5 5.7 19.8 38.3 3.6 8.4 33.3 38.0 3.8 1.5 5.9
48 G031.1475+00.2780 diffuse HII 4.4 103.0 11.5 6.9 103.2 5.3 1.9 11.8 103.5 2.1 2.2 4.8
49 G031.2430–00.1108 HII 4.4 19.8 8.4 25.9 20.5 4.8 9.8 54.9 20.8 3.6 3.9 16.0
50 G031.3948–00.2585 HII 5.0 88.0 5.7 36.2 87.4 5.5 20.4 127.5 86.8 4.7 6.4 30.1
51 G031.4134+00.3092 HII 5.0 96.0 9.5 27.0 97.4 5.4 9.8 55.6 97.6 5.3 7.7 42.6
52 G031.4743–00.3452 diffuse HII 4.7 92.0 3.9 24.6 91.3 3.1 6.3 20.8 91.3 3.1 2.0 6.4
53 G031.8237–00.1131 HII 4.6 39.1 4.1 23.6 40.3 3.3 10.3 35.7 39.4 2.3 2.7 6.9
54 G032.0301+00.0495 HII 5.1 95.0 7.4 17.0 95.8 5.5 4.9 29.0 96.3 1.3 2.5 4.5
55 G032.0451+00.0589 YSO 5.1 94.0 12.3 23.3 95.4 4.9 8.7 49.2 95.3 3.1 4.1 13.6
56 G032.1514+00.1317 HII 5.1 94.2 5.1 27.6 96.0 5.1 10.3 55.6 95.1 3.2 3.0 11.3
57 G032.4727+00.2041 HII 5.0 50.1 10.9 15.5 49.4 5.8 6.9 43.1 49.0 3.9 2.2 8.8
58 G032.7977+00.1903 HII 4.6 16.0 9.1 23.7 14.1 9.6 18.8 186.8 14.9 7.6 8.4 68.3
59 G033.1342–00.0915 HII 5.2 75.5 9.5 22.1 75.7 7.8 6.6 53.1 76.4 3.9 4.7 18.9
60 G033.2031–00.0102 HII 4.7 98.8 5.4 6.7 98.5 4.5 4.9 21.9 99.3 2.0 5.4 12.0
61 G033.2101–00.0148 diffuse HII 4.7 99.9 3.4 10.2 100.1 3.8 4.0 16.3 100.1 1.1 2.9 4.1
62 G033.3891+00.1989 YSO 5.1 84.2 4.7 17.2 84.6 3.0 9.1 30.3 85.0 1.9 4.1 7.9
63 G033.3933+00.0100 YSO 4.7 103.1 8.9 20.2 103.0 5.7 5.5 32.4 103.4 2.3 3.1 6.5
64 G033.4178–00.0038 HII 5.3 73.1 5.3 22.4 74.1 3.7 5.4 21.5 73.9 5.2 1.7 9.1
65 G033.6437–00.2277 diffuse HII 5.6 60.1 5.2 14.2 60.8 3.6 10.0 39.4 61.7 3.8 3.7 14.9
66 G033.9148+00.1093 HII 4.7 106.7 7.0 36.2 107.9 4.3 18.0 110.7 107.9 3.0 12.8 42.1
67 G034.2496+00.1322 diffuse HII 5.8 57.0 6.0 9.6 58.4 7.0 2.0 15.4 58.0 4.3 2.1 9.6
68 G034.2557+00.1454 diffuse HII 5.8 57.4 6.8 26.6 57.5 3.8 23.0 101.3 58.1 4.2 8.1 35.4
69 G034.2746–00.1507 HII 6.2 48.3 14.2 2.9 49.0 2.3 6.8 16.1 49.1 2.4 2.7 9.8
70 G034.6243–00.1300 HII 5.1 23.1 5.4 17.0 23.1 3.0 8.2 28.5 23.6 1.2 1.8 2.7
71 G034.7569+00.0247 YSO 5.4 75.1 6.3 8.4 76.1 3.3 7.3 25.6 76.1 1.8 4.8 11.3
72 G035.4524–00.2950 HII 6.0 53.7 18.0 5.1 54.8 3.6 9.8 37.9 55.3 2.0 4.3 7.9
73 G035.4672+00.1381 HII 5.4 76.1 2.9 28.5 76.5 3.2 17.0 58.1 77.8 2.5 7.3 19.3
74 G035.5736+00.0678 HII 6.0 48.6 9.6 23.8 48.5 4.7 11.7 59.2 49.9 2.9 4.8 15.7
75 G035.5789–00.0304 HII 6.0 51.1 8.5 35.5 52.0 7.1 15.6 116.7 52.8 4.9 5.1 26.9
76 G036.4057+00.0230 HII 6.0 58.0 5.4 16.2 57.3 5.2 11.6 66.4 56.8 3.7 4.2 17.6
77 G037.3412–00.0600A YSO 6.0 54.7 3.6 31.3 54.6 2.4 12.2 32.2 55.5 2.0 4.4 9.5
78 G037.3412–00.0600B HII 6.0 54.5 4.2 23.4 54.5 2.9 16.9 53.3 55.3 2.1 4.4 9.9
79 G037.5450–00.1118 HII 6.1 50.8 5.6 39.6 51.6 4.3 14.8 65.1 52.7 3.8 3.5 14.3
80 G037.5536+00.2008 YSO 5.2 85.0 7.0 19.6 85.7 3.5 5.5 26.4 84.4 4.2 4.1 16.5
81 G037.6390–00.1054 HII 6.3 44.0 4.7 12.1 45.6 3.7 8.2 32.4 46.4 2.3 3.4 7.6
82 G037.7625–00.2181 diffuse HII 5.7 65.0 9.5 22.2 64.1 7.5 7.5 58.2 63.3 4.6 4.7 23.3
83 G037.8195+00.4132 HII 6.0 17.7 7.6 17.8 15.7 6.5 7.1 48.1 16.8 4.4 3.6 16.8
84 G037.8730–00.3991 HII 5.9 60.1 17.2 26.4 61.1 8.2 15.3 138.1 61.1 6.2 5.2 36.3
85 G038.6462–00.2260 HII 5.8 68.1 4.0 21.9 69.7 4.0 9.9 41.5 68.5 1.8 5.8 10.5
86 G038.6930–00.4522 HII 6.2 51.0 3.9 17.0 51.0 4.1 12.4 53.5 50.6 2.9 3.6 10.4
87 G038.9365–00.4592 YSO 6.6 41.2 5.2 22.1 41.5 3.4 10.4 39.3 41.5 1.7 5.4 9.2
88 G039.3880–00.1421A HII 5.9 65.2 7.0 11.8 65.0 4.4 5.9 28.5 65.7 3.1 5.2 17.5
89 G039.3880–00.1421B YSO 5.9 66.6 8.2 18.2 66.5 4.4 5.4 25.3 65.2 3.3 6.3 23.3
90 G039.5328–00.1969 YSO 6.3 49.5 6.4 7.1 50.6 6.3 2.2 13.6 51.5 2.4 1.4 4.5
91 G039.8821–00.3457 HII 6.0 55.8 3.4 13.2 56.9 5.8 6.4 40.0 57.6 3.6 2.1 8.2
92 G040.0175–00.1193 HII 5.5 82.4 4.5 4.2 83.9 2.5 3.1 8.6 84.1 1.9 1.3 3.5
93 G040.2816–00.2190 YSO 5.5 71.2 17.0 19.7 71.5 4.1 8.8 53.3 70.5 4.0 3.6 15.0
94 G040.6225–00.1377 HII 6.9 32.6 14.2 10.2 32.7 4.7 3.6 17.9 32.7 3.5 3.1 11.8
95 G041.1331+00.1307 HII 6.1 59.6 4.4 9.0 61.6 4.3 2.1 9.4 60.4 1.8 2.0 4.6
96 G041.3780+00.0350 HII 6.1 58.6 6.2 8.8 59.1 2.9 11.7 37.4 58.7 2.7 2.4 7.0
97 G041.7410+00.0972 HII 7.6 12.6 5.5 9.0 12.8 3.7 9.0 36.7 13.6 3.1 1.9 6.5
98 G042.2396+00.3434 HII 5.8 –39.4 5.8 6.0 –40.2 2.7 4.7 14.0 –38.6 2.1 1.2 2.4
99 G043.1492+00.0130A HII 7.6 9.3 9.5 41.1 9.8 6.5 16.4 115.8 8.8 5.8 3.2 21.1
100 G043.1492+00.0130B HII 7.6 11.6 9.0 35.9 11.8 5.9 17.2 112.4 11.3 4.9 3.3 17.4
101 G043.1497+00.0272 diffuse HII 8.3 3.6 11.5 24.2 3.8 1.9 6.2 47.9 2.3 7.6 1.6 12.8
102 G043.1650–00.0285 HII 7.6 14.6 13.9 37.9 14.3 10.8 12.2 135.0 15.4 3.9 9.5 39.2
103 G043.1679+00.0095 HII 7.6 7.6 4.5 37.0 7.3 12.4 15.8 197.2 5.3 5.3 10.8 142.3
104 G043.1737–00.0074 diffuse HII 8.3 2.6 8.8 38.2 3.3 9.1 11.8 116.4 2.3 2.7 2.8 9.5
105 G043.3061–00.2106 HII 6.2 58.0 6.5 18.2 58.3 4.3 6.5 30.4 54.5 2.8 3.6 10.6
106 G043.7955–00.1275 HII 6.6 44.6 10.3 18.1 44.3 8.2 13.7 119.9 44.5 5.3 8.2 47.9
107 G043.8152–00.1172 YSO 6.5 47.0 3.5 4.4 46.8 3.2 3.3 11.7 47.0 2.1 1.8 4.8
108 G043.9956–00.0111 YSO 5.9 65.5 4.4 28.3 64.7 2.4 7.8 22.6 65.6 3.0 3.0 7.4
109 G044.3103+00.0416 HII 6.2 56.6 4.1 14.2 58.2 7.5 6.0 50.0 56.8 4.3 2.9 13.4
110 G045.0711+00.1325 HII 6.2 59.6 5.5 34.2 60.1 3.9 9.4 34.7 59.8 7.6 6.9 56.8
111 G045.1086+00.1302 HII 6.2 57.2 6.9 24.6 59.1 3.4 7.7 27.2 58.6 2.5 3.3 8.9
112 G045.1221+00.1323 HII 6.2 59.6 8.3 40.1 59.6 5.1 21.0 120.3 60.3 4.1 5.4 26.1
113 G045.4658+00.0457 HII 6.1 60.7 8.1 17.6 61.3 0.4 9.8 66.9 62.2 3.9 4.7 19.4
114 G045.4782+00.1323 diffuse HII 6.1 61.4 3.5 30.6 61.8 3.6 11.6 47.9 62.7 3.6 1.7 7.1

Notes. The superscripts 12, 13, and 18 mean 12CO, 13CO, and C18O, respectively. In the case of 12CO and 13CO, the typical errors (the formal 1σ value for the model of the Gaussian line shape) in Tmb are between 5% and 10%, while the typical error in this parameter for C18O ranges from 10% to 20%. The integrated line emission has typical errors of 5–10 % and 10–20% for 13CO and C18O, respectively.

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