Table 2
Römer delay, position corrections due to parallax effect, and radial velocity for the single-epoch positions used for the rotation parameter analysis.
| Star | Epoch t | Roe (t) | ∆α (t) | ∆δ (t) | vr |
|---|---|---|---|---|---|
| (Julian year) | (s) | (mas) | (mas) | (km s−1) | |
| LS I +61 303 | J2020.01520 | 251 | +0.672 | −0.043 | −41.4 |
| UX Ari | J2020.01542 | 316 | +17.109 | +1.681 | 50.7 |
| HD 22468 | J2020.01545 | 275 | +25.132 | +12.769 | −15.3 |
| HD 283447 | J2020.01544 | 380 | +6.020 | +0.182 | 16.0 |
| V410 Tau | J2020.01546 | 385 | +5.450 | +0.099 | 19.9 |
| HD 283572 | J2020.01547 | 389 | +5.380 | +0.081 | 14.2 |
| T Tau | J2020.01548 | 384 | +4.494 | +0.890 | 19.2 |
| Brun 334 | J2020.01560 | 398 | +0.930 | +1.125 | 20.3 |
| TYC 5346-538-1 | J2020.01561 | 393 | +0.803 | +1.135 | 0.0 |
| BH CVn | J2020.01370 | 71 | −24.387 | +7.892 | 6.4 |
| σ2 CrB | J2020.01416 | −171 | −33.110 | +30.065 | −14.7 |
| Haro1-6 | J2020.01429 | −395 | −4.526 | +0.401 | −3.7 |
| DoAr 51 | J2020.01429 | −402 | −4.306 | +0.322 | 0.0 |
| HD 199178 | J2020.01452 | −160 | +4.968 | +7.388 | −30.8 |
| SS Cyg | J2020.01451 | −128 | +0.059 | +0.068 | −62.0 |
| AR Lac | J2020.01460 | −90 | +22.514 | +17.663 | −33.8 |
| IM Peg | J2020.01469 | −189 | +8.242 | +5.305 | −14.4 |
| UV Psc | J2020.01506 | 38 | +12.972 | +5.242 | 6.5 |
| HD 8357 | J2020.01507 | 52 | +20.280 | +8.110 | 12.7 |
| RZ Cas | J2020.01520 | 244 | +36.601 | −3.507 | −39.4 |
| B Per | J2020.01544 | 359 | +8.367 | −2.347 | 19.8 |
| CoKu HP Tau G2 | J2020.01549 | 403 | +3.925 | +0.441 | 16.6 |
| SV Cam | J2020.01461 | 249 | +9.617 | −10.082 | −13.8 |
| 54 Cam | J2020.01358 | 399 | −4.082 | −5.451 | 27.5 |
| IL Hya | J2020.01348 | 268 | −5.318 | +6.125 | −7.3 |
| HU Vir | J2020.01371 | 75 | −6.081 | +2.755 | −0.7 |
| DK Dra | J2020.01362 | 211 | −19.951 | −0.544 | −45.3 |
| RS CVn | J2020.01370 | 106 | −8.314 | +2.315 | −13.6 |
| del Lib | J2020.01405 | −243 | −5.464 | +2.082 | −38.7 |
| SZ Psc | J2020.01475 | −211 | +8.576 | +4.264 | 12.0 |
| HD 224085 | J2020.01471 | −36 | +25.316 | +12.056 | −20.5 |
| HD 142184 | … | … | … | … | −9.20 |
| HD 167971 | J2020.21812 | −36 | −0.784 | −0.022 | 14.2 |
| HD 167971 | J2020.53120 | 473 | +0.226 | −0.144 | 14.2 |
| V479 Sct | J2020.21812 | −53 | −0.547 | −0.023 | 0.0 |
| EI Eri | J2020.21812 | −231 | +16.427 | −1.238 | 17.6 |
| YY Men | J2020.53120 | 87 | −10.436 | −3.707 | −8.5 |
| YY Men | J1990.94045 | −70 | +0.850 | +4.580 | −8.5 |
Notes. The Römer delay Roe needs to be subtracted from epoch t, which is the mean epoch between the first and last scans. In addition, the parallax effects, ∆α and ∆δ, need to be added to the positions α (t) and δ (t) in Table A.2 and Table 4 in Lunz et al. (2023). The position of star HD 142184 was not used because it could not be transferred to ICRF3. The last column shows the radial velocity (vr ) taken from SIMBAD and used in the rotation parameter calculations.
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