Table 1.
Astrometric parameters determined by VLBI for the radio sources included in the analysis.
| Name | Type | vr | Epoch t | α(t) | δ(t) | ϖ(t) | μα*(t) | μδ(t) | Ref. |
|---|---|---|---|---|---|---|---|---|---|
| (km s−1) | (Julian year) | (deg ± mas) | (deg ± mas) | (mas) | (mas yr−1) | (mas yr−1) | |||
| SY Scl | Mira | 24.0 | 2006.8282 | 1.901028361 ± 15.10 | −25.494452258 ± 7.700 | 0.750 ± 0.030 | 5.570 ± 0.040 | −7.320 ± 0.120 | 1 |
| S Per | RedSG | −39.7 | 2000.8884 | 35.715460833 ± 7.818 | 58.586512222 ± 8.000 | 0.413 ± 0.017 | −0.490 ± 0.230 | −1.190 ± 0.200 | 2 |
| LS I +61 303 | HXB | −41.4 | 1992.0000 | 40.131935007 ± 0.291 | 61.229332410 ± 0.573 | 0.260 ± 0.610 | 0.967 ± 0.260 | −1.210 ± 0.320 | 3 |
| UX Ari | RSCVn | 50.7 | 1999.9863 | 51.647432750 ± 1.200 | 28.715076528 ± 0.800 | 19.900 ± 0.500 | 44.960 ± 0.130 | −102.330 ± 0.090 | 4 |
| … | … | … | 1991.2471 | 51.647339076 ± 0.331 | 28.715340363 ± 0.377 | 19.370 ± 0.390 | 41.617 ± 0.186 | −104.010 ± 0.200 | 3 |
| HD 22468 | RSCVn | −15.3 | 1992.0000 | 54.197113376 ± 0.406 | 0.588121131 ± 0.401 | 33.880 ± 0.470 | −31.588 ± 0.330 | −161.690 ± 0.310 | 3 |
| V1271 Tau | RSCVn | 5.5 | 2013.0000 | 55.951464140 ± 0.110 | 25.004223050 ± 0.171 | 7.418 ± 0.025 | 19.860 ± 0.050 | −45.410 ± 0.160 | 5 |
| V811 Tau | BYDra | 11.3 | 2013.0000 | 56.338353995 ± 0.118 | 23.727308022 ± 0.198 | 7.223 ± 0.057 | 19.470 ± 0.110 | −44.390 ± 0.270 | 5 |
| HD 283447 | T Tau | 16.0 | 2006.9700 | 63.553843529 ± 0.132 | 28.203380745 ± 0.097 | 7.700 ± 0.190 | 17.092 ± 0.077 | −24.030 ± 0.053 | 6 |
| … | … | … | 1993.8809 | 63.553831265 ± 0.312 | 28.203455247 ± 0.470 | 6.740 ± 0.250 | 0.423 ± 0.291 | −23.250 ± 0.280 | 3 |
| V410 Tau | T Tau | 19.9 | 2015.7600 | 64.629661292 ± 0.021 | 28.454377914 ± 0.034 | 7.751 ± 0.027 | 8.703 ± 0.017 | −24.985 ± 0.020 | 7 |
| V1023 Tau | T Tau | 12.7 | 2005.3525 | 64.695968392 ± 0.013 | 28.335383111 ± 0.200 | 7.530 ± 0.030 | 4.300 ± 0.050 | −28.900 ± 0.300 | 8 |
| HD 283572 | T Tau | 14.2 | 2005.3525 | 65.495216792 ± 0.264 | 28.301769800 ± 0.050 | 7.780 ± 0.040 | 8.880 ± 0.060 | −26.600 ± 0.100 | 8 |
| … | … | … | 2005.3600 | 65.495216803 ± 0.032 | 28.301769751 ± 0.035 | 7.841 ± 0.057 | 9.023 ± 0.061 | −26.445 ± 0.077 | 7 |
| T Tau | T Tau | 23.9 | 2004.6231 | 65.497604438 ± 0.028 | 19.534921017 ± 0.400 | 6.820 ± 0.030 | 4.020 ± 0.030 | −1.180 ± 0.050 | 9 |
| HD 283641 | T Tau | 16.2 | 2015.9500 | 66.204409070 ± 0.065 | 26.719480101 ± 0.085 | 6.285 ± 0.070 | 10.913 ± 0.037 | −16.772 ± 0.044 | 7 |
| V1110 Tau | RSCVn | 2015.5700 | 68.663414796 ± 0.109 | 25.016900201 ± 0.116 | 11.881 ± 0.149 | −52.705 ± 0.062 | −11.321 ± 0.066 | 7 | |
| HD 282630 | T Tau | 13.6 | 2016.5800 | 73.904063653 ± 0.067 | 30.298527621 ± 0.066 | 7.061 ± 0.125 | 3.897 ± 0.113 | −24.210 ± 0.132 | 7 |
| T Lep | Mira | −4.0 | 2005.6427 | 76.211833879 ± 30.18 | −21.904579275 ± 13.15 | 3.060 ± 0.040 | 14.600 ± 0.500 | −35.430 ± 0.790 | 10 |
| V1961 Ori | Orion_V* | 30.1 | 2014.8600 | 83.613911148 ± 0.027 | −5.406194168 ± 0.028 | 2.533 ± 0.027 | −7.220 ± 0.060 | −0.990 ± 0.080 | 11 |
| Brun 334 | PMS | 21.3 | 2015.1800 | 83.665666567 ± 0.023 | −5.407112221 ± 0.048 | 2.591 ± 0.046 | −4.010 ± 0.080 | −1.170 ± 0.070 | 11 |
| V1321 Ori | Orion_V* | 17.6 | 2015.1800 | 83.767921447 ± 0.075 | −5.136841216 ± 0.182 | 2.509 ± 0.044 | 0.060 ± 0.200 | 6.950 ± 0.160 | 11 |
| MT Ori | Orion_V* | 2015.1800 | 83.824801264 ± 0.030 | −5.379288056 ± 0.062 | 2.646 ± 0.041 | 3.820 ± 0.100 | 1.600 ± 0.170 | 11 | |
| V1046 Ori | SB | 29.5 | 2015.2000 | 83.841117796 ± 0.054 | −4.494167133 ± 0.121 | 2.643 ± 0.075 | 1.880 ± 0.090 | 1.200 ± 0.140 | 11 |
| HD 37150 | Star | 10.8 | 2015.1900 | 84.062621055 ± 0.045 | −5.647921674 ± 0.096 | 2.536 ± 0.046 | 1.320 ± 0.050 | −0.560 ± 0.120 | 11 |
| TYC 5346-538-1 | Star | 2015.2000 | 85.640319910 ± 0.058 | −8.120884301 ± 0.140 | 2.348 ± 0.069 | 0.680 ± 0.090 | −0.510 ± 0.250 | 11 | |
| HD 290862 | Star | 2015.2100 | 86.680772978 ± 0.491 | 0.076677687 ± 0.643 | 2.197 ± 0.545 | 0.350 ± 0.270 | 0.830 ± 0.830 | 11 | |
| [SSC75] M 78 11 | Star | 2015.2100 | 86.688907482 ± 0.043 | 0.044527387 ± 0.085 | 2.547 ± 0.034 | 0.010 ± 0.100 | −0.490 ± 0.080 | 11 | |
| VY CMa | RedSG | 60.8 | 2006.5300 | 110.743024583 ± 10.00 | −25.767517500 ± 10.00 | 0.830 ± 0.080 | −2.210 ± 0.060 | 2.290 ± 0.300 | 12 |
| S Crt | LPV | 32.0 | 2005.7988 | 178.187373874 ± 1.800 | −7.596690803 ± 13.30 | 2.330 ± 0.130 | −3.170 ± 0.220 | −5.410 ± 0.220 | 13 |
| BH CVn | RSCVn | 6.4 | 1993.1088 | 203.698997828 ± 0.373 | 37.182433334 ± 0.455 | 22.210 ± 0.450 | 85.496 ± 0.131 | −9.220 ± 0.160 | 3 |
| S CrB | Mira | −5.1 | 2000.0000 | 230.349817010 | 31.367381400 | 2.360 ± 0.230 | −9.060 ± 0.230 | −12.520 ± 0.290 | 14 |
| σ2 CrB | HPM | −14.8 | 1990.0014 | 243.671114605 ± 0.104 | 33.858853887 ± 0.124 | 43.930 ± 0.100 | −267.048 ± 0.037 | −86.660 ± 0.050 | 3 |
| U Her | Mira | −26.1 | 2000.0000 | 246.447798640 | 18.892459900 | 3.740 ± 0.610 | −14.980 ± 0.290 | −9.230 ± 0.320 | 14 |
| Haro 1-6 | T Tau | 2007.9900 | 246.512566654 ± 0.399 | −24.393446456 ± 0.356 | 7.385 ± 0.234 | −19.630 ± 0.190 | −26.920 ± 0.130 | 15 | |
| DoAr 51 | T Tau | 2014.7500 | 248.049128879 ± 0.337 | −24.672768034 ± 0.336 | 6.983 ± 0.050 | −4.800 ± 0.080 | −23.110 ± 0.110 | 15 | |
| W 40 IRS 5 | Star | 2014.9500 | 277.811761649 ± 0.065 | −2.063932732 ± 0.119 | 2.302 ± 0.063 | 0.186 ± 0.053 | −6.726 ± 0.121 | 16 | |
| RR Aql | Mira | 11.0 | 2000.0000 | 299.400248870 | −1.886482960 | 1.580 ± 0.400 | −25.110 ± 0.740 | −49.820 ± 0.540 | 14 |
| Cyg X-1 | HXB | −2.7 | 2009.5700 | 299.590303145 ± 0.500 | 35.201590284 ± 0.500 | 0.547 ± 0.041 | −3.700 ± 0.080 | −6.420 ± 0.140 | 17 |
| … | … | … | 1991.2498 | 299.590326964 ± 0.308 | 35.201622230 ± 0.368 | 0.730 ± 0.300 | −3.787 ± 0.172 | −6.250 ± 0.210 | 3 |
| HD 199178 | RVS | −26.6 | 1993.7933 | 313.473486712 ± 0.332 | 44.386412565 ± 0.397 | 8.590 ± 0.330 | 26.595 ± 0.407 | −1.240 ± 0.430 | 3 |
| SS Cyg | DwarfNova | −62.0 | 2011.5661 | 325.678846337 ± 0.065 | 43.586181392 ± 0.070 | 8.800 ± 0.120 | 112.420 ± 0.070 | 33.380 ± 0.070 | 18 |
| AR Lac | RSCVn | −33.8 | 1992.4353 | 332.170232910 ± 0.274 | 45.742153188 ± 0.361 | 23.970 ± 0.370 | −52.080 ± 0.126 | 47.030 ± 0.190 | 3 |
| IM Peg | RSCVn | −14.4 | 2005.0869 | 343.259410883 ± 0.400 | 16.841155569 ± 0.390 | 10.370 ± 0.074 | −20.833 ± 0.090 | −27.267 ± 0.095 | 19 |
| … | … | … | 1992.9172 | 343.259484359 ± 0.360 | 16.841247861 ± 0.392 | 10.280 ± 0.620 | −20.587 ± 0.459 | −27.530 ± 0.400 | 3 |
| PZ Cas | RedSG | −51.4 | 2006.2998 | 356.013673333 ± 2.836 | 61.789496389 ± 3.000 | 0.356 ± 0.026 | −3.700 ± 0.200 | −2.000 ± 0.300 | 20 |
Notes. Name, type, and radial velocity (vr) are taken from SIMBAD, except for the names Cyg X-1 (for HD 226868) and σ2 CrB (for sig CrB A). An ellipsis (…) means the same data as in the line above. Positions α(t), δ(t) are barycentric and refer to the epochs in the fourth column. Uncertainties (in mas and mas yr−1) are given after the ± sign; for α they are σα* = σαcos δ. Positional data without uncertainties were not used in the solutions.
References. (1) Nyu et al. (2011); (2) Asaki et al. (2010); (3) Lestrade et al. (1999); (4) Peterson et al. (2011); (5) Melis et al. (2014); (6) Torres et al. (2012); (7) Galli et al. (2018); (8) Torres et al. (2007); (9) Loinard et al. (2007); (10) Nakagawa et al. (2014); (11) Kounkel et al. (2017); (12) Zhang et al. (2012); (13) Nakagawa et al. (2008); (14) Vlemmings & van Langevelde (2007); (15) Ortiz-León et al. (2017a); (16) Ortiz-León et al. (2017b); (17) Reid et al. (2011); (18) Miller-Jones et al. (2013); (19) Bartel et al. (2015); (20) Kusuno et al. (2013).
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