Table 5
Combined radial-velocity curve and light-curve solution with PHOEBE.
| Element | Orbital properties | ||||
|
|
|||||
| Psider. [d] | 6.321843 fixed | ||||
| e | 0.287 fixed | ||||
| ω [degrees] | 347.425 ± 0.048 | ||||
| Tperiast [RJD] | 45 249.14797 | ||||
| Tsup.c. [RJD] | 45 250.36603 ± 0.00018 | ||||
| Tinf.c. [RJD] | 45 248.31966 | ||||
| M2/M1 | 0.7061 ± 0024 | ||||
| i [degrees] | 84.423 ± 0.017 | ||||
| a [R⊙] | 39.358 ± 0.094 | ||||
|
|
|||||
| Component properties | |||||
| primary | secondary | ||||
|
|
|||||
| Teff [K] | 27 141 fixed | 25 376 ± 18 | |||
| F * | 2.418 | 2.805 | |||
| Potential | 5.9160 | ±0.0053 | 8.326 | ±0.024 | |
| L y | 0.8319 | ±0.0005 | 0.1681 | ±0.0005 | |
| L b | 0.8350 | ±0.0005 | 0.1650 | ±0.0005 | |
| L v | 0.8374 | ±0.0005 | 0.1626 | ±0.0005 | |
| L u | 0.8364 | ±0.0005 | 0.1636 | ±0.0005 | |
|
|
|||||
| log g [cgs] | 3.684 | 4.137 | |||
| M [M⊙] | 12.00 | ±0.07 | 8.47 | ±0.10 | |
| R [R⊙] | 8.248 | ±0.014 | 4.118 | ±0.015 | |
| M bol | −6.565 | −4.764 | |||
| Synchr.**Vrotsini [km s-1] | 66.2 | 33.0 | |||
| Observ. Vrotsini [km s-1] | 160.0 | 92.7 | |||
Notes.
The synchronicity parameter Fj = Porb/Prot,j (j = 1,2) of both components was kept fixed during each iteration, but it was recalculated for new radius and inclination after each iteration, using Vrotsini values of 160 km s-1, and 93 km s-1 for the primary and secondary, respectively.
These velocities are the pseudosynchronization velocities (Hut 1981) calculated as ri.(K1 + K2) × coeff. according to Hut (1981). The optimized parameters are given with only their formal errors derived from the covariance matrix.
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