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Table 5

6.7 GHz CH3OH maser parameters.

Feature Epochs of I peak V LSR Δx Δy V x V y
number detection (Jy beam-1) (km s-1) (mas) (mas) (km s-1) (km s-1)
0 1, 2, 3, 4 ... 97.5 192.50  ±  0.06 −399.23  ±  0.07 0.0  ±  0.0 0.0  ±  0.0
1 1, 2, 3, 4 9.57 92.3 0.00  ±  0.00 0.00  ±  0.00 2.8  ±  1.1 3.4  ±  1.2
2a 1, 2, 3, 4 2.64 104.2 347.78  ±  0.08 −47.91  ±  0.09 ... ...
3 1, 2, 3, 4 2.48 103.4 346.91  ±  0.08 −38.57  ±  0.08 −5.9  ±  1.0 15.6  ±  1.2
4 1, 2, 3, 4 1.66 95.9 −241.15  ±  0.09 −85.27  ±  0.09 18.2  ±  1.3 −3.0  ±  1.3
5 1, 2, 3, 4 1.63 103.6 356.28  ±  0.08 −71.34  ±  0.08 −18.9  ±  1.2 18.7  ±  1.4
6 1, 2, 3, 4 1.14 93.8 25.76  ±  0.08 −886.78  ±  0.09 0.5  ±  1.1 −8.1  ±  1.3
7a 1, 2, 3, 4 0.96 95.6 −254.83  ±  0.09 −75.53  ±  0.09 ... ...
8 1, 2, 3, 4 0.95 102.9 357.14  ±  0.08 −65.98  ±  0.09 −8.9  ±  1.1 16.9  ±  1.4
9 1, 2, 3, 4 0.86 96.0 596.01  ±  0.09 −704.83  ±  0.10 11.1  ±  1.3 −11.5  ±  1.6
10 1, 2, 3, 4 0.84 105.4 340.86  ±  0.08 −4.30  ±  0.09 −2.2  ±  1.4 10.7  ±  1.7
11 1, 2, 3, 4 0.80 95.6 591.89  ±  0.09 −674.21  ±  0.10 11.3  ±  1.3 −10.1  ±  1.5
12 1, 2, 3, 4 0.77 102.7 353.48  ±  0.08 −51.70  ±  0.09 −7.3  ±  1.2 14.8  ±  1.5
13 1, 2, 3, 4 0.75 96.3 543.18  ±  0.09 −1092.66  ±  0.10 4.9  ±  1.3 −7.6  ±  1.6
14 1 0.75 103.5 349.46  ±  0.10 −54.71  ±  0.11 ... ...
15 1, 2, 3, 4 0.74 95.2 −260.43  ±  0.10 −72.04  ±  0.10 14.5  ±  1.3 −4.6  ±  1.4
16 1, 2, 3, 4 0.71 96.3 −134.94  ±  0.11 −120.17  ±  0.11 −4.8  ±  1.8 6.2  ±  1.9
17 1, 2, 3, 4 0.61 98.8 624.01  ±  0.09 −731.91  ±  0.10 4.9  ±  1.4 −4.7  ±  1.7
18a 1, 2, 3, 4 0.52 99.1 177.27  ±  0.10 136.98  ±  0.13 ... ...
19 1, 2, 3, 4 0.42 99.2 171.80  ±  0.12 147.41  ±  0.14 1.5  ±  1.7 6.0  ±  2.2
20 1, 2, 3, 4 0.35 93.3 55.71  ±  0.11 −691.54  ±  0.12 0.7  ±  1.6 −9.9  ±  2.0
21 1, 2, 3, 4 0.32 96.8 −148.45  ±  0.13 −114.68  ±  0.13 −0.8  ±  1.9 4.9  ±  2.2
22a 1, 2, 3 0.31 98.7 616.63  ±  0.10 −729.16  ±  0.11 ... ...
23 1, 2, 3, 4 0.29 97.6 604.58  ±  0.12 −711.77  ±  0.13 −1.9  ±  1.8 −3.3  ±  2.2
24 1, 2, 3, 4 0.24 106.6 334.10  ±  0.14 −20.74  ±  0.18 −13.8  ±  1.8 17.8  ±  2.5
25 1, 2, 3, 4 0.23 97.2 75.48  ±  0.18 181.85  ±  0.29 1.5  ±  2.4 4.4  ±  4.2
26 1, 2, 3, 4 0.23 105.1 339.26  ±  0.11 −68.06  ±  0.13 −6.6  ±  2.1 17.8  ±  2.7
27 1, 2, 3, 4 0.20 92.6 91.99  ±  0.16 −683.14  ±  0.18 7.6  ±  2.5 −15.4  ±  3.1
28 1, 2 0.19 105.5 338.14  ±  0.15 −70.04  ±  0.19 ... ...
29 1, 2 0.18 96.1 −105.40  ±  0.19 −151.75  ±  0.22 ... ...
30 1, 2, 3, 4 0.17 98.2 118.15  ±  0.24 116.94  ±  0.38 3.3  ±  3.1 3.8  ±  4.7
31 4 0.17 98.5 614.03  ±  0.18 −728.71  ±  0.23 ... ...
32 1, 2 0.17 96.2 −263.36  ±  0.24 −78.72  ±  0.21 ... ...
33 1, 2, 3 0.16 98.4 612.57  ±  0.16 −727.02  ±  0.17 −1.9  ±  5.0 −8.6  ±  5.8
34 1, 2, 3, 4 0.16 94.9 −1.41  ±  0.18 −989.38  ±  0.17 −1.9  ±  3.0 −5.9  ±  3.3
35 1, 2, 4 0.16 95.4 577.99  ±  0.27 −669.69  ±  0.32 21.0  ±  4.2 −10.1  ±  4.8
36a 1, 2, 3, 4 0.16 94.4 27.33  ±  0.20 −990.87  ±  0.26 ... ...
37 1, 2, 3, 4 0.15 97.3 −133.29  ±  0.24 −128.33  ±  0.27 −6.7  ±  3.4 9.0  ±  4.0
38 1, 2, 3, 4 0.15 92.6 57.45  ±  0.21 −684.51  ±  0.22 1.8  ±  3.2 −14.1  ±  3.7
39a 1, 2, 3 0.15 94.6 22.81  ±  0.16 −983.89  ±  0.20 ... ...
40 1, 2, 3, 4 0.15 99.8 635.73  ±  0.19 −746.47  ±  0.25 1.3  ±  3.1 −4.1  ±  4.0
41 1, 2, 3, 4 0.14 100.0 714.67  ±  0.17 −1004.55  ±  0.19 5.4  ±  3.9 −8.9  ±  4.2
42a 1, 2, 3, 4 0.14 93.0 36.56  ±  0.30 −694.89  ±  0.28 ... ...
43 1, 2, 3 0.13 95.2 14.57  ±  0.25 −978.73  ±  0.23 −0.4  ±  8.2 −22.1  ±  8.6
44 1, 2 0.13 95.9 −95.07  ±  0.28 −138.93  ±  0.37 ... ...
45 1 0.13 95.8 587.12  ±  0.28 −667.66  ±  0.54 ... ...
46 1, 2, 3, 4 0.11 94.7 −341.89  ±  0.16 −474.74  ±  0.20 −5.4  ±  4.0 0.0  ±  5.1
47 1, 2, 3, 4 0.10 94.3 −113.82  ±  0.22 −489.24  ±  0.28 −0.3  ±  3.7 −9.6  ±  5.0
48 1, 2, 3, 4 0.10 94.5 14.55  ±  0.17 −989.79  ±  0.20 −11.1  ±  4.6 −8.0  ±  5.4
49 1, 2, 3, 4 0.10 92.0 57.76  ±  0.25 −825.33  ±  0.36 5.9  ±  4.5 −14.3  ±  6.5
50 2 0.09 93.8 18.28  ±  0.25 41.24  ±  0.41 ... ...
51 3 0.09 98.4 104.20  ±  0.29 137.52  ±  0.43 ... ...
52 2 0.09 94.5 14.85  ±  0.29 −1051.79  ±  0.35 ... ...
53a 1, 2, 3, 4 0.08 95.0 −270.45  ±  0.40 −71.69  ±  0.31 ... ...
54 1, 2, 3, 4 0.08 93.0 47.88  ±  0.18 −690.79  ±  0.22 1.2  ±  5.1 −10.7  ±  6.0
55a 1, 2, 3, 4 0.08 94.3 −9.62  ±  0.39 100.93  ±  0.62 ... ...
56 1, 2, 3, 4 0.08 94.9 572.04  ±  0.31 −658.57  ±  0.43 4.3  ±  5.2 −8.7  ±  6.6
57a 1, 2, 3, 4 0.08 106.7 320.07  ±  0.19 −86.91  ±  0.28 ... ...
58 1 0.08 94.9 8.04  ±  0.39 −988.51  ±  0.47 ... ...
59 1, 2 0.08 93.9 134.44  ±  0.23 −730.51  ±  0.35 ... ...
60 1, 2, 3, 4 0.08 97.9 86.04  ±  0.38 152.20  ±  0.57 2.2  ±  5.1 11.6  ±  8.0
61 1, 2, 3 0.07 101.0 727.27  ±  0.31 −917.53  ±  0.38 13.4  ±  9.0 −19.4  ±  11.1
62 1, 2, 3 0.07 97.0 53.64  ±  0.36 177.40  ±  0.59 1.2  ±  8.2 5.0  ±  13.2
63 1, 2 0.07 104.5 301.71  ±  0.25 −80.64  ±  0.42 ... ...
64 1 0.07 96.5 −48.64  ±  0.35 −844.58  ±  0.48 ... ...
65 1 0.06 94.5 −122.40  ±  0.39 −492.51  ±  0.43 ... ...
66 1 0.06 93.2 604.31  ±  0.37 −664.64  ±  0.48 ... ...
67 2 0.06 98.6 103.39  ±  0.62 142.21  ±  1.28 ... ...
68 4 0.06 98.5 103.72  ±  0.76 139.63  ±  1.28 ... ...
69 1 0.06 95.0 98.92  ±  0.40 −822.30  ±  0.52 ... ...
70a 1, 3, 4 0.06 97.0 −239.70  ±  0.49 −82.07  ±  0.68 ... ...
71 1 0.05 98.6 102.52  ±  0.47 144.12  ±  0.88 ... ...
72 1, 2 0.05 93.6 −17.51  ±  0.39 38.20  ±  0.64 ... ...
73 1 0.05 93.8 115.21  ±  0.35 −1317.51  ±  0.56 ... ...
74 1 0.05 106.6 340.24  ±  0.29 −5.02  ±  0.45 ... ...
75 1, 2 0.05 93.1 98.92  ±  0.69 −676.75  ±  0.64 ... ...
76 1, 2 0.05 93.6 −8.51  ±  0.39 13.39  ±  0.72 ... ...
77a 1, 2, 4 0.05 98.0 527.33  ±  0.40 −726.68  ±  0.66 ... ...
78 1 0.05 94.2 −6.38  ±  0.46 204.54  ±  0.63 ... ...
79 2 0.05 91.5 33.46  ±  0.38 56.86  ±  0.66 ... ...
80 1 0.05 92.7 83.34  ±  0.59 −690.23  ±  0.80 ... ...
81 3 0.05 105.8 351.51  ±  0.53 −160.45  ±  0.67 ... ...
82 1 0.04 94.3 −9.02  ±  0.48 213.87  ±  0.73 ... ...
83 3 0.04 94.7 −46.01  ±  0.71 146.18  ±  0.84 ... ...
84 1 0.04 90.5 −137.65  ±  0.46 −532.52  ±  0.77 ... ...
85 1 0.04 97.0 −239.12  ±  0.66 −91.77  ±  0.63 ... ...

Notes. Column 1 gives the feature label number; Col. 2 lists the observing epochs at which the feature was detected; Cols.3 and 4 provide the intensity of the strongest spot and the intensity-weighted LSR velocity, respectively, averaged over the observing epochs; Cols. 5 and 6 give the position offsets (with the associated errors) along the RA and Dec axes, relative to the feature #1, measured at the first epoch of detection; Cols. 7 and 8 give the components of the relative proper motion (with the associated errors) along the RA and Dec axes, measured with respect to the reference feature #0 (the “center of motion”).

(a)

Feature with not reliable proper motion, even if observed at three or four epochs.

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