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Table 1.
Basic characteristics of the binary systems studied in this work.
| Binary | Other | Orbital | Vmax | Spectral | Age | Cluster | Apsidal |
|---|---|---|---|---|---|---|---|
| system | designation | period (d) | (mag) | types | (Myr) | membership | period (yr) |
| V1034 Sco | CPD−41°7742 | 2.44 | 8.80 | O9.5 V + B1-1.5 V | 3–8 | NGC 6231 | 23.4 ± 0.8 |
| GL Car | HD 306168 | 2.42 | 9.74 | B0.5 V + B1 V | 2.0 | NGC 3572 | 25.20 ± 0.02 |
| V573 Car | CPD−59°2628 | 1.47 | 9.47 | O9.5 V + B0.3 V | 2 | Trumpler 16 | – |
| V346 Cen | HD 101837 | 6.32 | 9.57 | B1/3II/III | 10 | Stock 14 | 306 ± 4 |
Notes. References to the quantities are given in Sect. 2.
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