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Table A.1

List of 6.7 GHz CH3OH maser spots detected in epoch 8.

Cluster α (mas) δ (mas) Vlsr (kms−1) Fpeak (Jy beam−1) Tb (K)
II −207.86 ± 0.10 −192.23 ± 0.08 −0.2 0.15 5.1×107
II −208.36 ± 0.07 −192.01 ± 0.05 −0.2 0.28 9.2×107
II −208.63 ± 0.06 −192.35 ± 0.05 −0.3 0.35 1.2×108
II −208.92 ± 0.06 −192.37 ± 0.04 −0.3 0.41 1.4×108
II −209.32 ± 0.06 −192.36 ± 0.03 −0.4 0.43 1.4×108
II −208.91 ± 0.20 −191.45 ± 0.10 −0.4 0.37 1.2×108
II −209.88 ± 0.07 −191.60 ± 0.04 −0.5 0.33 1.1×108
II −209.93 ± 0.07 −191.63 ± 0.04 −0.5 0.29 9.5×107
II −210.19 ± 0.09 −191.56 ± 0.04 −0.5 0.21 7.0×107
II −210.73 ± 0.10 −191.34 ± 0.05 −0.6 0.15 4.8×107
II −210.76 ± 0.12 −191.11 ± 0.06 −0.6 0.11 3.6×107
II −211.31 ± 0.21 −191.72 ± 0.09 −0.7 0.07 2.2×107
 
II −195.58 ± 0.40 −175.68 ± 0.21 −1.0 0.03 1.1×107
II −194.95 ± 0.47 −175.16 ± 0.20 −1.0 0.04 1.2×107
II −195.78 ± 0.36 −174.66 ± 0.21 −1.1 0.06 1.8×107
 
II −210.91 ± 0.15 −169.01 ± 0.08 −1.2 0.09 3.0×107
II −211.75 ± 0.12 −168.57 ± 0.06 −1.3 0.15 5.0×107
II −211.05 ± 0.10 −168.60 ± 0.05 −1.3 0.19 6.1×107
II −212.23 ± 0.12 −167.98 ± 0.06 −1.4 0.22 7.3×107
II −214.14 ± 0.25 −166.91 ± 0.10 −1.4 0.23 7.6×107
 
I −517.79 ± 0.05 −69.56 ± 0.02 −1.5 0.87 2.9×108
I −517.89 ± 0.03 −68.99 ± 0.01 −1.5 1.41 4.7×108
I −517.83 ± 0.02 −68.50 ± 0.01 −1.6 2.16 7.1×108
I −518.03 ± 0.03 −66.28 ± 0.02 −1.6 5.23 1.7×109
I −517.76 ± 0.01 −65.30 ± 0.01 −1.6 8.29 2.7×109
I −517.80 ± 0.01 −65.81 ± 0.01 −1.7 12.30 4.1 ×109
I −518.33 ± 0.02 −65.79 ± 0.01 −1.7 13.07 4.3×109
I −518.44 ± 0.02 −65.47 ± 0.01 −1.8 15.41 5.1×109
I −518.76 ± 0.01 −65.75 ± 0.01 −1.8 13.99 4.6×109
I −519.00 ± 0.02 −65.84 ± 0.01 −1.9 9.05 3.0×109
I −518.69 ± 0.02 −65.82 ± 0.01 −1.9 4.72 1.6×109
I −518.53 ± 0.05 −65.82 ± 0.02 −1.9 1.41 4.7×108
 
I −587.29 ± 0.03 −17.73 ± 0.01 −2.2 6.78 2.2×109
I −587.76 ± 0.02 −16.95 ± 0.01 −2.2 23.42 7.8×109
I −589.13 ± 0.02 −16.39 ± 0.01 −2.3 46.93 1.6×1010
I −590.42 ± 0.03 −15.96 ± 0.01 −2.3 71.28 2.4×1010
I −591.24 ± 0.03 −15.39 ± 0.01 −2.3 69.22 2.3×1010
I −592.50 ± 0.03 −14.46 ± 0.01 −2.4 56.08 1.9×1010
I −594.28 ± 0.04 −13.29 ± 0.02 −2.4 32.95 1.1×1010
I −596.01 ± 0.05 −12.76 ± 0.02 −2.5 24.56 8.1×109
I −599.76 ± 0.09 −11.26 ± 0.04 −2.5 13.67 4.5×109
I −602.11 ± 0.07 −10.22 ± 0.04 −2.6 10.24 3.4×109
I −602.80 ± 0.07 −9.79 ± 0.04 −2.6 7.69 2.5×109
I −603.32 ± 0.12 −10.17 ± 0.05 −2.6 3.05 1.0×109
 
I −624.95 ± 0.08 −2.75 ± 0.04 −2.6 4.50 1.5×109
I −625.86 ± 0.04 −2.14 ± 0.02 −2.7 4.01 1.3×109
I −627.00 ± 0.05 −1.81 ± 0.02 −2.7 2.00 6.6×108
I −628.20 ± 0.03 −1.50 ± 0.01 −2.8 2.17 7.2×108
I −628.53 ± 0.03 −1.15 ± 0.01 −2.8 1.75 5.8×108
I −629.03 ± 0.04 −0.87 ± 0.02 −2.9 0.70 2.3×108
I −629.05 ± 0.06 −0.64 ± 0.03 −2.9 0.32 1.1×108
I −629.31 ± 0.11 0.03 ± 0.05 −3.0 0.15 4.9×107
 
III −762.95 ± 0.14 77.27 ± 0.07 −3.3 0.52 1.7×108
III −763.00 ± 0.14 76.80 ± 0.08 −3.4 0.83 2.8×108
III −762.65 ± 0.10 76.92 ± 0.05 −3.4 0.73 2.4×108
III −763.27 ± 0.32 76.71 ± 0.16 −3.4 0.24 8.0×107
III −773.07 ± 0.07 80.50 ± 0.04 −3.5 0.50 1.7×108
III −773.72 ± 0.09 81.15 ± 0.06 −3.5 0.36 1.2×108
 
III −827.92 ± 0.04 123.60 ± 0.02 −3.6 1.05 3.5×108
III −828.07 ± 0.06 123.20 ± 0.03 −3.6 0.71 2.4×108
III −827.79 ± 0.12 123.31 ± 0.06 −3.7 0.38 1.3×108
 
IV 813.92 ± 0.21 −209.73 ± 0.08 −3.7 0.19 6.4×107
IV 814.37 ± 0.11 −209.60 ± 0.04 −3.7 0.38 1.3×108
IV 814.40 ± 0.06 −209.63 ± 0.03 −3.8 0.85 2.8×108
IV 814.16 ± 0.05 −209.65 ± 0.02 −3.8 1.16 3.8×108
IV 812.40 ± 0.19 −209.93 ± 0.08 −3.9 0.37 1.2×108
 
IV 797.92 ± 0.03 −209.07 ± 0.01 −3.8 2.19 7.2×108
IV 796.50 ± 0.02 −209.10 ± 0.01 −3.9 3.33 1.1×109
IV 795.63 ± 0.03 −209.32 ± 0.01 −3.9 3.15 1.0×109
IV 795.38 ± 0.05 −209.77 ± 0.02 −4.0 3.74 1.2×109
IV 794.32 ± 0.05 −209.80 ± 0.02 −4.0 3.63 1.2×109
IV 794.30 ± 0.04 −209.85 ± 0.02 −4.1 4.18 1.4×109
IV 793.96 ± 0.05 −209.85 ± 0.02 −4.1 4.00 1.3×109
IV 793.71 ± 0.05 −209.66 ± 0.02 −4.1 3.92 1.3×109
IV 793.80 ± 0.04 −209.36 ± 0.02 −4.2 4.12 1.4×109
IV 794.41 ± 0.03 −208.86 ± 0.01 −4.3 1.98 6.6×108
IV 794.80 ± 0.04 −208.91 ± 0.02 −4.3 1.11 3.7×108
IV 795.05 ± 0.09 −208.78 ± 0.04 −4.4 0.38 1.3×108
IV 795.13 ± 0.13 −208.83 ± 0.07 −4.4 0.13 4.3×107
 
IV 796.75 ± 0.07 −224.11 ± 0.03 −3.9 1.46 4.8×108
IV 796.40 ± 0.04 −224.12 ± 0.02 −4.0 5.21 1.7×109
IV 797.03 ± 0.03 −223.85 ± 0.01 −4.0 6.09 2.0×109
IV 797.08 ± 0.03 −223.59 ± 0.01 −4.1 5.84 1.9×109
IV 796.71 ± 0.05 −223.70 ± 0.02 −4.1 3.80 1.3×109
IV 796.58 ± 0.06 −223.63 ± 0.03 −4.1 3.09 1.0×109
IV 796.23 ± 0.10 −223.64 ± 0.04 −4.2 1.49 4.9×108
 
V −482.68 ± 0.39 548.40 ± 0.41 −4.3 0.14 4.7×107
V −437.63 ± 0.28 596.95 ± 0.17 −4.3 0.18 5.8×107
V −448.15 ± 0.27 583.80 ± 0.32 −4.4 0.13 4.4×107
V −482.35 ± 0.28 547.95 ± 0.32 −4.4 0.13 4.2 × 107

Notes. Numbers in the first column refer to the cluster that the spot originates from (see figure 3). Columns 2 and 3 give the relative positions and uncertainties in Right Ascension and Declination, respectively. The fourth column shows the local-standard-of-rest velocity of the spot, the fifth column its peak flux density. The last column presents the brightness temperatures of each spot.

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