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Table 3.
Orbital parameters for HD 98800 AaAb binary.
| Orbital parameters | Torres et al. (1995) | This work |
|---|---|---|
| Period (days) | 262.15 ± 0.51 | 264.51 ± 0.02 |
| T0 (MJD) | 48737.1 ± 1.6 | 48742.5 ± 0.8 |
| e | 0.484 ± 0.020 | 0.4808 ± 0.0008 |
| ωAa (°) | 64.4 ± 2.1 | 68.7 ± 0.1 |
| Ω (°) | ... | 170.2 ± 0.1 |
| i (°) | ... | 135.6 ± 0.1 |
| a (mas) | ... | 19.03 ± 0.01 |
| KAa (km s−1) | 6.8 ± 0.2 | 6.7 ± 0.2 |
| γTO95 (km s−1) | 12.7 ± 0.1 | 12.8 ± 0.1 |
| γFEROS07(a) (km s−1) | ... | 14.7 ± 0.4 |
| γFEROS15(b) (km s−1) | ... | 12 ± 2 |
| γCTIO (km s−1) | ... | 11.8 ± 0.2 |
| γELODIE (km s−1) | ... | 12.1 ± 0.5 |
| Derived parameters | ||
| Hipp. π (mas) | ... | 22 ± 2 |
| MAa (M⊙) | ... | 0.9 ± 0.4 |
| MAb (M⊙) | ... | 0.29 ± 0.07 |
| a (AU) | ... | 0.9 ± 0.1 |
| BaBb π (mas) | ... | 22.0 ± 0.6 |
| MAa (M⊙) | ... | 0.93 ± 0.09 |
| MAb (M⊙) | ... | 0.29 ± 0.02 |
| a (AU) | ... | 0.86 ± 0.02 |
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