Table 5
22.2 GHz H2O maser parameters for G35.20−0.74N.
| Feature | Epochs of | Ipeak | VLSR | Δ x | Δ y | Vx | Vy |
| Number | detection | (Jy beam-1) | (km s-1) | (mas) | (mas) | (km s-1) | (km s-1) |
|
|
|||||||
| 1 | 2, 3, 4 | 80.48 | 31.0 | 179.11 ± 0.07 | −1052.40 ± 0.08 | 26.9 ± 11.3 | −22.5 ± 11.3 |
| 2 | 1, 2, 3, 4 | 63.56 | 31.4 | 184.32 ± 0.07 | −1051.20 ± 0.07 | −9.5 ± 6.6 | −32.1 ± 6.6 |
| 3 | 1, 2, 3, 4 | 31.22 | 37.2 | −379.16 ± 0.07 | −5650.49 ± 0.07 | −25.9 ± 6.6 | −47.2 ± 6.6 |
| 4 | 1, 2, 3, 4 | 27.33 | 35.5 | 0.00 ± 0.00 | 0.00 ± 0.00 | 6.2 ± 6.6 | −29.2 ± 6.6 |
| 5 | 4 | 15.07 | 32.5 | 173.36 ± 0.07 | −1047.34 ± 0.07 | ... | ... |
| 6 | 1, 2, 3, 4 | 7.20 | 31.7 | 172.58 ± 0.08 | −1041.02 ± 0.08 | −9.5 ± 6.6 | −19.8 ± 6.7 |
| 7 | 1, 2, 3, 4 | 6.84 | 33.0 | −213.52 ± 0.07 | −380.36 ± 0.07 | 5.0 ± 6.6 | −13.5 ± 6.6 |
| 8 | 2, 3, 4 | 5.77 | 27.4 | 188.74 ± 0.07 | −1055.96 ± 0.07 | −3.8 ± 11.2 | −32.9 ± 11.2 |
| 9 | 3, 4 | 5.10 | 31.7 | 185.80 ± 0.07 | −1054.28 ± 0.07 | ... | ... |
| 10 | 2, 3, 4 | 4.36 | 29.8 | 164.41 ± 0.08 | −1045.77 ± 0.08 | 43.5 ± 11.3 | −16.8 ± 11.4 |
| 11 | 4 | 3.39 | 30.9 | 25.88 ± 0.08 | −1026.68 ± 0.09 | ... | ... |
| 12 | 1, 2, 3, 4 | 1.63 | 33.4 | −210.77 ± 0.08 | −377.03 ± 0.08 | 5.6 ± 6.7 | −18.0 ± 6.7 |
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 4, measured at the first epoch of detection; Cols. 7 and 8 give the components of the absolute proper motion (with the associated errors) along the RA and Dec axes. The absolute position of the feature 4 at the epoch on September 6, 2013, is: α(J2000) = 18h58m13
0334, δ(J2000) = 1°40′36.̋337, with an accuracy of ±2 mas.
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