Table 3.
Orbital parameters of the α Dra system, obtained via the spectral disentangling method, from 46 high-resolution high S/N HERMES spectra.
| Parameter | Unit | Value |
|---|---|---|
| P | [d] | 51.41891 (fix) |
| Tpp | [d] | 2 451 441.804 ± 0.014 |
| e | 0.4229 ± 0.0012 | |
| ω | [deg] | 21.28 ± 0.13 |
| KA | [km s−1] | 48.512 ± 0.054 |
| KB | [km s−1] | 63.58 ± 0.41 |
| q | 0.7642 ± 0.0064 | |
| MA sin3i | [M⊙] | 3.167 ± 0.044 |
| MB sin3i | [M⊙] | 2.416 ± 0.019 |
| A sin i | [R⊙] | 103.19 ± 0.38 |
Notes. The orbital period was fixed to the value determined from the observed primary minima (see Sect. 5). The uncertainties in the orbital parameters were calculated with the bootstrapping method from 10 000 samples.
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