Table 8.
Comparison of distance determinations based on the surface brightness-colour relation, photometric parallaxes from those measurements, parallaxes from Gaia EDR3, and distance determinations from Bailer-Jones et al. (2021) for five binary systems, where the components are giant stars analysed in this paper and by Suchomska et al. (2015, 2019).
| System | d (pc) Suchomska et al. | ϖphot (mas) (1) Suchomska et al. | ϖ (mas) Gaia DR3 | d (pc) Bailer-Jones geometric | d (pc) Bailer-Jones photogeometric |
|---|---|---|---|---|---|
| ASAS-180057 (2) | 1600.5 ± 43.9(stat.) ± 39.3(syst.) | 0.6248 ± 0.0222 | 0.5641 ± 0.0193 | 1662.8 |
1650.9 |
| BLG-123903 | 2953 ± 59.(stat.) ± 70.2(syst.) | 0.3386 ± 0.0102 | 0.2819 ± 0.0370 | 2952.4 |
2714.4 |
| BLG-296596 | 5682.8 ± 74.2(stat.) ± 142.3(syst.) | 0.1759 ± 0.0048 | 0.1437 ± 0.0307 | 5527.2 |
5298.5 |
| BLG-305487 | 7803.7 ± 179.9(stat.) ± 198.3 (syst.) | 0.1281 ± 0.0042 | 0.1413 ± 0.0580 | 6460.1  |
6861.2 |
| BLG-116218 | 7569.8 ± 275.3 (stat.) ± 189.1 (syst.) | 0.1321 ± 0.0056 | 0.1325 ± 0.0505 | 5876.0 |
5622.7 |
Notes. (1)Statistical and systematic error combined. (2)Distance has been recalculated in this work.
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