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Table 4
Orbital parameters of the binary systems in the sample.
| Parameter | HE 0442−1234 | HE 1044−2509 | HE 1523−0901 |
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| Period (days) | 2515.2 ± 5.5 | 36.561 ± 0.009 | 303.05 ± 0.25 |
| T0 (BJD) | 2 457 918.3 ± 1.0 | 2 455 737.1 ± 0.1 | 2 455 068.0 ± 4.1 |
| K (km s-1) | 12.541 ± 0.016 | 27.024 ± 0.96 | 0.350 ± 0.003 |
| γ (km s-1) | 236.35 ± 0.01 | 360.22 ± 0.57 | –163.23 ± 0.003 |
| e | 0.767 ± 0.001 | 0.000a | 0.163 ± 0.010 |
| ω ° | 316.6 ± 0.1 | 90.00 | 81.7 ± 4.7 |
| asini (R⊙) | 400.2 ± 1.2 | 19.6 ± 0.7 | 2.07 ± 0.02 |
| f(m) (M⊙) | 0.136 ± 0.001 | 0.075 ± 0.009 | 1.3E-5 ± 4E-8 |
| σ (km s-1) | 0.28 | 1.88 | 0.11 |
| RRoche (R⊙, M1 = 0.8 M⊙, M2 = 0.6 M⊙) | 59 | 13 | 53 |
| RRoche (R⊙, M1 = 0.8 M⊙, M2 = 1.4 M⊙) | 770 | 46 | 220 |
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