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Table 2
All 6.7-GHz methanol maser features detected in W51–IRS2.
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | |
| Maser | RAa | Deca | Peak flux | Vlsr | ΔvL | Pl | χ | ΔVib | TbΔΩb | ΔVZc | θd | |
| offset | offset | density(#I) | ||||||||||
| (mas) | (mas) | (Jy/beam) | (km s-1) | (km s-1) | (%) | (°) | (km s-1) | (log K sr) | (m/s) | (°) | ||
|
|
||||||||||||
| W51N.01 | –85.860 | –28.289 | 0.27 ± 0.01 | 54.52 | 0.31 | − | − | − | − | − | − | |
| W51N.02 | –83.367 | –22.108 | 0.20 ± 0.01 | 54.96 | 0.28 | − | − | − | − | − | − | |
| W51N.03 | –53.067 | –11.479 | 0.33 ± 0.04 | 57.94 | 0.28 | − | − | − | − | − | − | |
| W51N.04 | –45.312 | 8.416 | 0.90 ± 0.02 | 57.51 | 0.25 | − | − | − | − | − | − | |
| W51N.05 | –33.569 | –351.122 | 0.61 ± 0.02 | 59.70 | 0.18 | − | − | − | − | − | − | |
| W51N.06 | –25.536 | –312.023 | 0.47 ± 0.03 | 59.88 | 0.28 | − | − | − | − | − | − | |
| W51N.07 | –12.962 | 13.928 | 0.74 ± 0.02 | 55.84 | 0.25 | − | − | − | − | − | − | |
| W51N.08 | –9.140 | –108.629 | 1.02 ± 0.03 | 56.28 | 0.29 | − | − | − | − | − | − | |
| W51N.09 | –6.813 | –2.965 | 1.93 ± 0.01 | 56.45 | 0.21 | − | − | − | − | − | − | |
| W51N.10 | –5.152 | –16.856 | 1.12 ± 0.03 | 56.28 | 0.35 | − | − | − | − | − | − | |
| W51N.11 | 0 | 0 | 12.03 ± 0.07 | 56.19 | 0.35 | 1.3 ± 1.1 | 27 ± 13 |
|
|
− |
|
|
| W51N.12 | 1.496 | 18.406 | 0.95 ± 0.01 | 56.63 | 0.36 | − | − | − | − | − | − | |
| W51N.13 | 5.096 | –6.713 | 1.25 ± 0.01 | 55.75 | 0.30 | − | − | − | − | − | − | |
| W51N.14 | 5.373 | –161.138 | 2.42 ± 0.05 | 59.79 | 0.24 | − | − | − | − | − | − | |
| W51N.15 | 10.192 | 6.065 | 0.57 ± 0.01 | 56.98 | 0.31 | − | − | − | − | − | − | |
| W51N.16 | 12.630 | –129.178 | 0.48 ± 0.02 | 60.84 | 0.26 | − | − | − | − | − | − | |
| W51N.17 | 24.761 | –149.938 | 0.16 ± 0.01 | 60.23 | 0.26 | − | − | − | − | − | − | |
| W51N.18 | 64.644 | 26.281 | 0.20 ± 0.02 | 55.75 | 0.28 | − | − | − | − | − | − | |
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