Table A.1.
Parameters of all the 22 GHz H2O maser features detected around VLA1 (epoch 2014.46).
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maser | RAa | Deca | Zone | Peak | Vlsr | ΔvL | Pl | χ | ΔVib | TbΔΩb | PV | B|| | θc |
| feature | offset | offset | Intensity (I) | ||||||||||
| (mas) | (mas) | (Jy/beam) | (km/s) | (km/s) | (%) | (°) | (km/s) | (log K sr) | (%) | (mG) | (°) | ||
| VLA1.1.01 | -101.803 | -153.618 | - | 0.43 ± 0.03 | 8.37 | 0.38 | − | − | − | − | − | − | − |
| VLA1.1.02 | -101.761 | -156.307 | - | 0.57 ± 0.04 | 8.48 | 0.44 | − | − | − | − | − | − | − |
| VLA1.1.03 | -64.879 | -93.826 | - | 2.59 ± 0.17 | 12.77 | 0.52 | 15.6 ± 2.0 | +48 ± 3 | < 0.4 |
 |
− | − |
 |
| VLA1.1.04 | -31.619 | -19.016 | - | 15.85 ± 0.15 | 12.61 | 2.88 | 10.1 ± 2.5 | −62 ± 1 |
 |
 |
− | − |
 |
| VLA1.1.05 | -28.672 | -99.377 | - | 86.37 ± 1.06 | 10.61 | 2.31 | 2.3 ± 0.6 | −25 ± 4 | 0.5 |
 |
− | − |
 |
| VLA1.1.06 | -24.588 | -99.083 | - | 8.37 ± 0.34 | 11.35 | 1.45 | − | − | − | − | − | − | − |
| VLA1.1.07 | -23.703 | -12.516 | - | 74.21 ± 0.79 | 10.98 | 0.58 | − | − | − | − | − | − | − |
| VLA1.1.08 | -14.778 | -1.484 | - | 23.15 ± 0.04 | 8.63 | 0.57 | 1.3 ± 0.1 | −39 ± 3 |
 |
 |
− | − |
 |
| VLA1.1.09 | -10.610 | -10.700 | - | 1.71 ± 0.02 | 7.90 | 2.81 | − | − | − | − | − | − | − |
| VLA1.1.10 | -7.621 | -6.420 | - | 61.34 ± 0.35 | 9.77 | 2.10 | − | − | − | − | − | − | − |
| VLA1.1.11 | -6.821 | -9.647 | - | 44.38 ± 0.13 | 12.48 | 1.22 | 0.7 ± 0.1 | −45 ± 5 | − | − | − | − | − |
| VLA1.1.12 | -5.810 | -6.111 | - | 34.60 ± 0.21 | 9.56 | 0.58 | − | − | − | − | − | − | − |
| VLA1.1.13 | -4.084 | -9.914 | - | 0.54 ± 0.01 | 16.77 | 3.61 | − | − | − | − | − | − | − |
| VLA1.1.14 | 1.684 | 1.221 | - | 9.01 ± 0.20 | 9.53 | 0.87 | − | − | − | − | − | − | − |
| VLA1.1.15 | 0 | 0 | - | 1205.52 ± 1.05 | 10.45 | 0.92 | 0.4 ± 0.1 | −32 ± 5 | − | − | − | − | − |
| VLA1.1.16 | 2.779 | -0.122 | - | 49.67 ± 0.21 | 13.03 | 1.55 | 0.5 ± 0.1 | −34 ± 5 |
 |
 |
− | − |
 |
| VLA1.1.17 | 11.662 | 7.095 | - | 5.72 ± 0.04 | 8.90 | 1.65 | − | − | − | − | − | − | − |
| VLA1.1.18 | 12.673 | 8.083 | - | 14.22 ± 0.10 | 9.29 | 1.08 | − | − | − | − | − | − | − |
| VLA1.1.19 | 16.251 | 11.299 | - | 9.16 ± 0.26 | 11.37 | 0.97 | − | − | − | − | − | − | − |
| VLA1.1.20 | 16.378 | 10.674 | - | 13.52 ± 0.02 | 19.67 | 1.87 | 0.7 ± 0.1 | −41 ± 5 | − | − | − | − | − |
| VLA1.1.21 | 17.767 | 13.378 | - | 8.08 ± 0.25 | 11.37 | 0.77 | − | − | − | − | − | − | − |
| VLA1.1.22 | 36.250 | 24.662 | - | 21.39 ± 0.37 | 9.79 | 1.38 | − | − | − | − | − | − | − |
| VLA1.1.23 | 36.418 | 20.989 | - | 15.00 ± 0.10 | 12.27 | 2.05 | − | − | − | − | − | − | − |
| VLA1.1.24 | 37.639 | 20.233 | - | 62.51 ± 0.14 | 12.58 | 0.72 | 0.6 ± 0.1 | −22 ± 4 |
 |
 |
− | − |
 |
| VLA1.1.25 | 38.397 | 21.591 | - | 680.26 ± 0.61 | 14.14 | 1.36 | 0.6 ± 0.1 | −35 ± 2 | − | − | − | − | − |
| VLA1.1.26 | 40.418 | 21.824 | - | 134.29 ± 0.25 | 13.19 | 0.68 | 0.5 ± 0.1 | −40 ± 4 |
 |
 |
− | − |
 |
| VLA1.1.27 | 40.460 | 22.739 | - | 42.89 ± 0.24 | 13.19 | 0.83 | 1.3 ± 0.1 | −23 ± 2 |
 |
 |
− | − |
 |
| VLA1.1.28 | 54.943 | 31.521 | - | 3.67 ± 0.13 | 12.50 | 0.88 | − | − | − | − | − | − | − |
Notes.
The reference position is α2000 = 20h38m36s.43399 ± 0s.00008 and δ2000 = +42° 37′34″.8710 ± 0″.0009.
The best-fitting results obtained by using a model based on the radiative transfer theory of H2O masers for Γ + Γν = 1 s−1 S11a. The errors were determined by analyzing the full probability distribution function. For T ∼ 3600 K (Γν = 19 s−1) TbΔΩ has to be adjusted by adding +1.3 log K sr (Anderson & Watson 1993).
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