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Table A.3
Parameters of the 6.7-GHz CH3OH maser features detected in G31.28+0.06.
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maser | RAa | Deca | Peak flux | Vlsr | ΔvL |  |
χb |  |
TbΔΩc | PV | ΔVZ | |B||| | θd |
| offset | offset | Density(I) | |||||||||||
| (mas) | (mas) | (Jy/beam) | (km/s) | (km/s) | (%) | (°) | (km/s) | (log K sr) | (%) | (m/s) | (mG) | (°) | |
| G312.E01 | -274.572 | -273.005 | 0.422 ± 0.015 | 109.52 | 0.28 | − | − | − | − | − | − | − | − |
| G312.E02 | -242.638 | -289.921 | 3.006 ± 0.035 | 110.00 | 0.38 | − | − | − | − | − | − | − | − |
| G312.E03 | -242.338 | -193.659 | 1.014 ± 0.049 | 111.23 | 0.25 | − | − | − | − | − | − | − | − |
| G312.E04 | -241.723 | -178.473 | 2.557 ± 0.029 | 111.67 | 0.19 | − | − | − | − | − | − | − | − |
| G312.E05 | -237.590 | -502.018 | 0.298 ± 0.026 | 112.37 | 0.31 | − | − | − | − | − | − | − | − |
| G312.E06 | -234.272 | -277.576 | 0.859 ± 0.008 | 107.89 | 0.20 | − | − | − | − | − | − | − | − |
| G312.E07 | -233.529 | -181.396 | 0.102 ± 0.006 | 109.08 | 0.33 | − | − | − | − | − | − | − | − |
| G312.E08 | -232.070 | -183.102 | 2.656 ± 0.051 | 111.01 | 0.65 | 2.6 ± 0.3 | + 43 ± 4 |  |
 |
− | − | − |  |
| G312.E09 | -231.741 | -160.955 | 3.196 ± 0.037 | 112.37 | 0.29 | − | − | − | − | − | − | − | − |
| G312.E10 | -231.269 | 18.898 | 0.066 ± 0.006 | 107.98 | 0.39 | − | − | − | − | − | − | − | − |
| G312.E11 | -229.267 | -139.851 | 0.298 ± 0.028 | 111.58 | 1.35 | − | − | − | − | − | − | − | − |
| G312.E12 | -228.223 | -168.879 | 4.423 ± 0.070 | 110.17 | 0.30 | − | − | − | − | − | − | − | − |
| G312.E13 | -227.565 | -297.728 | 0.369 ± 0.024 | 109.65 | 0.83 | − | − | − | − | − | − | − | − |
| G312.E14 | -226.493 | -179.544 | 1.242 ± 0.025 | 111.49 | 0.28 | − | − | − | − | − | − | − | − |
| G312.E15 | -225.277 | -279.278 | 0.095 ± 0.005 | 108.07 | 0.34 | − | − | − | − | − | − | − | − |
| G312.E16 | -219.857 | -163.776 | 3.403 ± 0.025 | 111.80 | 0.22 | 2.5 ± 0.5 | + 38 ± 1 |  |
 |
− | − | − |  |
| G312.E17 | -208.903 | -282.822 | 2.836 ± 0.017 | 108.68 | 0.27 | − | − | − | − | − | − | − | − |
| G312.E18 | -200.580 | -290.514 | 0.117 ± 0.007 | 108.98 | 0.22 | − | − | − | − | − | − | − | − |
| G312.E19 | -186.737 | -144.226 | 0.368 ± 0.019 | 112.11 | 0.14 | − | − | − | − | − | − | − | − |
| G312.E20 | -184.050 | -137.276 | 0.290 ± 0.020 | 111.89 | 0.18 | − | − | − | − | − | − | − | − |
| G312.E21 | -183.534 | 16.922 | 0.068 ± 0.005 | 110.74 | 3.94 | − | − | − | − | − | − | − | − |
| G312.E22 | -176.569 | -128.181 | 1.078 ± 0.019 | 112.11 | 0.20 | − | − | − | − | − | − | − | − |
| G312.E23 | -160.438 | 25.583 | 0.413 ± 0.035 | 112.28 | 0.21 | − | − | − | − | − | − | − | − |
| G312.E24 | -159.180 | -3.201 | 0.069 ± 0.006 | 112.72 | 0.22 | − | − | − | − | − | − | − | − |
| G312.E25 | -156.520 | -102.699 | 0.908 ± 0.014 | 112.24 | 0.40 | − | − | − | − | − | − | − | − |
| G312.E26 | -152.559 | -99.792 | 3.846 ± 0.038 | 112.33 | 0.39 | 4.1 ± 0.5 | + 37 ± 8 |  |
 |
− | − | − |  |
| G312.E27 | -135.684 | 49.168 | 0.548 ± 0.025 | 109.69 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E28 | -128.276 | -76.635 | 0.746 ± 0.005 | 112.85 | 0.32 | 5.4 ± 0.1 | + 39 ± 2 |  |
 |
− | − | − |  |
| G312.E29 | -18.691 | 129.513 | 0.370 ± 0.018 | 109.56 | 0.23 | − | − | − | − | − | − | − | − |
| G312.E30 | 0 | 0 | 32.441 ± 0.137 | 110.35 | 0.25 | 8.1 ± 1.3 | + 40 ± 1 |  |
 |
− | − | − |  |
| G312.E31 | 0.057 | -42.929 | 1.763 ± 0.017 | 111.93 | 0.29 | − | − | − | − | − | − | − | − |
| G312.E32 | 3.690 | -17.494 | 1.485 ± 0.010 | 108.37 | 0.39 | 16.7 ± 0.3 | + 63 ± 1 |  |
 |
− | − | − |  |
| G312.E33 | 14.172 | 17.973 | 0.136 ± 0.007 | 109.25 | 0.19 | − | − | − | − | − | − | − | − |
| G312.E34 | 29.874 | -237.848 | 0.333 ± 0.010 | 108.42 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E35 | 36.738 | 124.414 | 0.086 ± 0.008 | 109.34 | 0.37 | − | − | − | − | − | − | − | − |
| G312.E36 | 42.802 | 263.100 | 0.143 ± 0.011 | 106.95 | 0.29 | − | − | − | − | − | − | − | − |
| G312.E37 | 53.870 | 114.351 | 0.767 ± 0.010 | 108.86 | 0.37 | − | − | − | − | − | − | − | − |
| G312.E38 | 59.176 | 107.553 | 0.707 ± 0.009 | 109.38 | 0.50 | − | − | − | − | − | − | − | − |
| G312.E39 | 72.218 | 117.935 | 0.645 ± 0.006 | 103.02 | 0.30 | − | − | − | − | − | − | − | − |
| G312.E40 | 76.351 | 113.398 | 0.270 ± 0.004 | 102.45 | 0.38 | − | − | − | − | − | − | − | − |
| G312.E41 | 79.211 | -2.188 | 0.049 ± 0.007 | 103.28 | 0.35 | − | − | − | − | − | − | − | − |
| G312.E42 | 81.242 | 98.152 | 0.044 ± 0.004 | 102.87 | 0.29 | − | − | − | − | − | − | − | − |
| G312.E43 | 91.066 | 102.911 | 1.824 ± 0.012 | 104.42 | 0.32 | − | − | − | − | − | − | − | − |
| G312.E44 | 93.068 | 110.018 | 0.900 ± 0.012 | 104.47 | 0.28 | − | − | − | − | − | − | − | − |
| G312.E45 | 97.158 | -11.244 | 0.037 ± 0.004 | 104.73 | 0.32 | − | − | − | − | − | − | − | − |
| G312.E46 | 98.245 | -288.097 | 0.067 ± 0.007 | 104.25 | 0.67 | − | − | − | − | − | − | − | − |
| G312.E47 | 115.005 | 81.486 | 0.061 ± 0.007 | 104.60 | 0.32 | − | − | − | − | − | − | − | − |
| G312.E48 | 117.036 | -261.021 | 0.525 ± 0.022 | 105.30 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E49 | 120.368 | -250.776 | 1.742 ± 0.021 | 105.26 | 0.26 | 2.3 ± 0.5 | + 8 ± 2 |  |
 |
− | − | − |  |
| G312.E50 | 121.784 | -255.949 | 0.819 ± 0.022 | 105.61 | 0.21 | − | − | − | − | − | − | − | − |
| G312.E51 | 122.613 | 51.416 | 0.245 ± 0.004 | 103.46 | 0.31 | − | − | − | − | − | − | − | − |
| G312.E52 | 132.867 | 43.779 | 0.094 ± 0.004 | 102.71 | 0.22 | − | − | − | − | − | − | − | − |
| G312.E53 | 136.814 | -106.281 | 2.610 ± 0.060 | 110.88 | 0.42 | − | − | − | − | − | − | − | − |
| G312.E54 | 139.088 | -62.532 | 0.075 ± 0.006 | 108.02 | 0.20 | − | − | − | − | − | − | − | − |
| G312.E55 | 139.888 | -32.051 | 0.297 ± 0.010 | 106.09 | 0.56 | − | − | − | − | − | − | − | − |
| G312.E56 | 140.689 | -76.920 | 0.162 ± 0.010 | 108.86 | 0.33 | − | − | − | − | − | − | − | − |
| G312.E57 | 140.918 | 10.685 | 0.050 ± 0.004 | 102.53 | 0.47 | − | − | − | − | − | − | − | − |
| G312.E58 | 141.333 | 10.635 | 0.052 ± 0.004 | 102.53 | 0.47 | − | − | − | − | − | − | − | − |
| G312.E59 | 143.220 | -236.525 | 0.164 ± 0.010 | 106.84 | 0.31 | − | − | − | − | − | − | − | − |
| G312.E60 | 144.822 | -145.670 | 0.518 ± 0.020 | 111.89 | 0.27 | − | − | − | − | − | − | − | − |
| G312.E61 | 145.880 | -30.191 | 3.785 ± 0.023 | 105.52 | 0.53 | 1.3 ± 1.0 | − 43 ± 14 |  |
 |
− | − | − |  |
| G312.E62 | 146.181 | -221.058 | 7.026 ± 0.041 | 105.87 | 0.31 | 0.5 ± 0.1 | + 23 ± 1 |  |
 |
− | − | − |  |
| G312.E63 | 148.197 | -116.352 | 5.537 ± 0.075 | 110.48 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E64 | 148.326 | -129.145 | 8.260 ± 0.055 | 111.14 | 0.32 | 0.9 ± 0.1 | + 74 ± 10 |  |
 |
− | − | − |  |
| G312.E65 | 150.085 | -121.626 | 0.181 ± 0.009 | 109.38 | 0.38 | − | − | − | − | − | − | − | − |
| G312.E66 | 151.043 | -36.299 | 0.227 ± 0.007 | 104.25 | 0.29 | − | − | − | − | − | − | − | − |
| G312.E67 | 151.972 | -47.279 | 0.392 ± 0.004 | 103.54 | 0.32 | − | − | − | − | − | − | − | − |
| G312.E68 | 152.416 | -82.766 | 0.433 ± 0.042 | 110.88 | 0.39 | − | − | − | − | − | − | − | − |
| G312.E69 | 154.146 | -146.338 | 3.087 ± 0.043 | 110.88 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E70 | 158.765 | -153.168 | 8.425 ± 0.060 | 110.66 | 0.35 | − | − | − | − | − | − | − | − |
| G312.E71 | 159.409 | -172.253 | 0.398 ± 0.007 | 107.80 | 0.24 | − | − | − | − | − | − | − | − |
| G312.E72 | 160.710 | -162.045 | 0.145 ± 0.008 | 107.89 | 0.23 | − | − | − | − | − | − | − | − |
| G312.E73 | 161.926 | -177.849 | 0.160 ± 0.007 | 108.20 | 0.15 | − | − | − | − | − | − | − | − |
| G312.E74 | 163.356 | -174.149 | 0.090 ± 0.007 | 109.25 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E75 | 166.731 | -162.006 | 0.121 ± 0.012 | 107.01 | 0.35 | − | − | − | − | − | − | − | − |
| G312.E76 | 167.975 | -242.701 | 0.154 ± 0.020 | 107.54 | 0.54 | − | − | − | − | − | − | − | − |
| G312.E77 | 168.718 | -132.042 | 4.021 ± 0.022 | 107.54 | 0.31 | 1.8 ± 0.2 | − 78 ± 3 |  |
 |
− | − | − |  |
| G312.E78 | 170.492 | -137.651 | 1.447 ± 0.009 | 106.79 | 0.50 | − | − | − | − | − | − | − | − |
| G312.E79 | 173.409 | -159.010 | 0.697 ± 0.010 | 108.86 | 0.31 | − | − | − | − | − | − | − | − |
| G312.E80 | 177.814 | -172.522 | 2.119 ± 0.019 | 106.09 | 0.25 | − | − | − | − | − | − | − | − |
| G312.E81 | 319.475 | 486.170 | 0.178 ± 0.012 | 107.27 | 0.47 | − | − | − | − | − | − | − | − |
| G312.E82 | 320.548 | 189.465 | 1.461 ± 0.012 | 107.14 | 0.26 | − | − | − | − | − | − | − | − |
| G312.E83 | 326.740 | 184.299 | 7.008 ± 0.045 | 107.23 | 0.28 | − | − | − | − | − | − | − | − |
| G312.E84 | 329.185 | -112.333 | 0.357 ± 0.027 | 107.19 | 0.30 | − | − | − | − | − | − | − | − |
| G312.E85 | 449.997 | 98.328 | 0.454 ± 0.023 | 105.65 | 0.17 | − | − | − | − | − | − | − | − |
| G312.E86 | 484.090 | -22.982 | 0.324 ± 0.012 | 108.81 | 0.25 | − | − | − | − | − | − | − | − |
| G312.E87 | 489.767 | -9.336 | 1.914 ± 0.026 | 109.78 | 0.29 | 4.1 ± 0.4 | + 88 ± 2 |  |
 |
− | − | − |  |
| G312.E88 | 504.868 | 18.246 | 5.967 ± 0.075 | 110.17 | 0.21 | 2.1 ± 0.6 | − 52 ± 2 |  |
 |
− | − | − |  |
Notes. (a)The reference position is α2000 = 18h48m12s.390 and δ2000 = −01°26′22″.629 (see Sec. 3). (b)Pl and χ are the mean values of the linear polarization fraction and the linear polarization angle measured across the spectrum, respectively. (c)The best-fitting results obtained using a model based on the radiative transfer theory of methanol masers for Γ + Γν = 1 s-1 (Vlemmings et al. 2010; Surcis et al. 2011b). The errors were determined by analyzing the full PDF. (d)The angle between the magnetic field and the maser propagation direction is determined using the observed Pl and the fitted emerging brightness temperature. The errors were determined by analyzing the full PDF. The boldface indicates that |θ+ − 55°| < |θ−− 55°|, i.e., the magnetic field is parallel to the linear polarization vector (see Sect. 4).
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