Table 2
Proper motion measurements of the 31 brightest knots in the jets.
Name | α4 (2000) | δ4 (2000) | PM12 | PA12 | PM23 | PA23 | PM13 | PA13 | PM24 | PA24 | PM34 | PA34 | PM14 | PA14 |
h | deg | mas/yr | deg | mas/yr | deg | mas/yr | deg | mas/yr | deg | mas/yr | deg | mas/yr | deg | |
MHO | ±0.06′′ | ±0.06′′ | ±10 | ±28 | ±7 | ±15 | ±35 | ±6 | ||||||
|
||||||||||||||
2235-M5 | 18:28:59.296 | 0:29:13.32 | 92 | 340±18 | 77 | 170±25 | ||||||||
2235-M4 | 18:28:59.666 | 0:29:12.89 | 36 | 350±16 | 39 | 4±11 | 22 | 8±16 | ||||||
2235-M1 | 18:28:59.730 | 0:29:10.95 | ||||||||||||
2235-M2 | 18:28:59.826 | 0:29:10.24 | ||||||||||||
2235-I1 | 18:29:01.722 | 0:29:24.28 | 13 | 199±26 | ||||||||||
2235-I2 | 18:29:01.732 | 0:29:21.97 | 24 | 221±24 | 23 | 195±19 | 68 | 168±13 | 108 | 178±18 | 37 | 186±9 | ||
2235-I3 | 18:29:01.746 | 0:29:26.29 | 23 | 324±25 | 69 | 89±23 | 16 | 32± 26 | 13 | 341±27 | ||||
2235-K | 18:29:01.953 | 0:29:04.37 | 68 | 306±9 | 41 | 300± 11 | 61 | 158±15 | 91 | 164±21 | 24 | 273±15 | ||
2235-F2 | 18:29:03.676 | 0:29:56.20 | 53 | 194±11 | 128 | 269±13 | 58 | 29± 7 | 42 | 251±21 | 74 | 113±26 | 43 | 213±8 |
2235-F1 | 18:29:03.843 | 0:29:59.87 | 79 | 179± 24 | ||||||||||
2235-E | 18:29:04.928 | 0:30:15.12 | 91 | 235±6 | 113 | 164±14 | 82 | 214±5 | 113 | 198±8 | 158 | 228±13 | 95 | 218±3 |
2235-D | 18:29:05.406 | 0:30:21.11 | 24 | 162±24 | 89 | 36±18 | 19 | 83±22 | 78 | 178±25 | 20 | 127±17 | ||
2235-C1 | 18:29:05.997 | 0:30:22.06 | 48 | 230±12 | 43 | 242±10 | 28 | 235±13 | ||||||
2235-A1 | 18:29:06.655 | 0:30:30.95 | 34 | 170±17 | 28 | 167±15 | 27 | 167±13 | ||||||
2235-A2 | 18:29:06.761 | 0:30:34.05 | ||||||||||||
2235-B | 18:29:06.934 | 0:30:24.77 | 15 | 146± 27 | 13 | 133±26 | ||||||||
2234-H8 | 18:29:07.922 | 0:30:24.86 | 33 | 312±18 | 67 | 88±24 | 17 | 0±25 | 18 | 334± 20 | ||||
2234-H3 | 18:29:08.153 | 0:30:31.95 | 23 | 212±25 | 61 | 136±26 | 26 | 175±16 | 13 | 167±26 | ||||
2234-G1 | 18:29:08.235 | 0:30:47.98 | 41 | 207±14 | 130 | 350±13 | 21 | 291±20 | 119 | 169±17 | 19 | 219±19 | ||
2234-H1 | 18:29:08.363 | 0:30:32.56 | 51 | 194±12 | 42 | 186±10 | 36 | 188±10 | ||||||
2234-H5 | 18:29:08.469 | 0:30:39.93 | ||||||||||||
2234-H2 | 18:29:08.498 | 0:30:35.59 | 16 | 149±26 | ||||||||||
2234-C | 18:29:08.609 | 0:31:13.50 | 27 | 5±22 | 125 | 189±13 | 34 | 186±25 | 76 | 12±25 | ||||
2234-E | 18:29:08.610 | 0:31:07.55 | 23 | 200±25 | 106 | 207±15 | 45 | 204±10 | 144 | 18±14 | ||||
2234-H4 | 18:29:08.610 | 0:30:38.89 | 38 | 214±16 | 67 | 90±24 | 23 | 175±19 | 39 | 92±23 | 19 | 173±18 | ||
2234-D1+2 | 18:29:08.810 | 0:31:08.38 | 74 | 168±8 | 88 | 183±18 | 77 | 173±5 | 56 | 167±6 | ||||
2234-B1 | 18:29:09.009 | 0:31:22.08 | 52 | 179±11 | 149 | 203±11 | 76 | 191±6 | 70 | 198±13 | 58 | 188±6 | ||
2234-A1 | 18:29:09.045 | 0:31:28.10 | ||||||||||||
2234-A2 | 18:29:09.057 | 0:31:26.64 | 71 | 180±8 | 116 | 197±14 | 82 | 186±5 | 46 | 190±19 | 61 | 183±6 | ||
2234-I1 | 18:29:09.570 | 0:32:07.53 | 37 | 35±24 | 70 | 54±27 | 19 | 63±19 | ||||||
2233-N | 18:29:11.560 | 0:31:20.05 | 23 | 100±25 | 36 | 14±24 | 21 | 56±17 | ||||||
2233-P | 18:29:12.443 | 0:31:46.19 | 23 | 125±25 | 57 | 316±16 |
Notes.The J2000 coordinates of the knots are measured in epoch 4 (2013) and are accurate to ~0.06′′. The proper motions (PMij) are measured in mas/yr for six different baselines and listed only for PMs larger than 2σ. The sub-indices ij give the motion from epoch i to epoch j, where epoch 1 is 2003, epoch 2 is 2009, epoch 3 is 2011, and epoch 4 is 2013. The proper motion position angles (PAij) indicate the direction of the motion from epoch i to epoch j and the angles are measured from north and eastwards.
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