Table C.1
Comparison of the astrometric parameters for radio sources in TGAS with the corresponding VLBI results.
| Name | HIP/TYC | Δα ∗ [mas] | Δδ [mas] | Δϖ [mas] | Δμα ∗ [mas yr-1] | Δμδ [mas yr-1] | Reference (VLBI) |
|
|
|||||||
| S Persei | 11093 | + 4.969 ± 8.474 | −10.626 ± 8.497 | −0.001 ± 0.720 | −0.153 ± 0.242 | −0.225 ± 0.211 | Asaki et al. (2010) |
| LS I +61 303 | 12469 | −28.882 ± 6.726 | + 22.324 ± 7.611 | + 0.188 ± 0.650 | −1.322 ± 0.373 | + 1.133 ± 0.383 | Lestrade et al. (1999) |
| HII 174 | 1803-0008-1 | −0.024 ± 0.302 | −0.130 ± 0.918 | −0.395 ± 0.492 | Melis et al. (2014) | ||
| HD 283447 | 19762 | + 8.447 ± 0.759 | −36.971 ± 0.482 | −0.460 ± 0.495 | −8.998 ± 0.170 | + 0.011 ± 0.111 | Torres et al. (2012) |
| T Tau | 20390 | + 231.577 ± 1.280 | + 514.096 ± 0.545 | + 0.291 ± 0.309 | + 7.600 ± 0.169 | −12.339 ± 0.095 | Loinard et al. (2007) |
| T Lep | 23636 | −0.843 ± 0.759 | −4.395 ± 0.502 | + 1.668 ± 0.791 | Nakagawa et al. (2014) | ||
| 3C273 | 60936 | + 0.912 ± 1.474 | + 0.819 ± 1.961 | −0.140 ± 0.377 | −0.384 ± 0.443 | + 0.111 ± 0.288 | Ma et al. (2009) |
| σ2 CrB | 79607 | −12.772 ± 1.142 | −5.524 ± 1.491 | + 0.104 ± 0.913 | −0.471 ± 0.065 | −0.009 ± 0.086 | Lestrade et al. (1999) |
| Cyg X-1 | 98298 | −0.378 ± 0.444 | −0.648 ± 0.732 | −0.310 ± 0.250 | + 0.015 ± 0.086 | + 0.034 ± 0.139 | Reid et al. (2011) |
| HD 199178 | 103144 | −4.246 ± 8.859 | + 6.620 ± 9.330 | + 0.358 ± 0.474 | −0.170 ± 0.409 | + 0.349 ± 0.431 | Lestrade et al. (1999) |
| AR Lac | 109303 | −4.324 ± 2.945 | −0.975 ± 4.398 | −0.332 ± 0.510 | −0.220 ± 0.127 | −0.082 ± 0.191 | Lestrade et al. (1999) |
| IM Peg | 112997 | + 0.503 ± 1.029 | −0.014 ± 1.046 | −0.039 ± 0.372 | + 0.001 ± 0.093 | −0.110 ± 0.096 | Bartel et al. (2015) |
| PZ Cas | 117078 | −29.855 ± 3.349 | −9.348 ± 4.012 | + 0.438 ± 0.558 | −0.275 ± 0.205 | −0.236 ± 0.303 | Kusuno et al. (2013) |
Notes. Δα ∗ = Δαcosδ. Differences are computed as TGAS minus VLBI at epoch J2015.0. The uncertainties are the quadratically combined standard errors of the TGAS and VLBI quantities. The quoted references do not give the VLBI positions for HII 174 and T Lep.
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