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Table 7
Stellar parameters for the eclipsing binary (HD 64315 BaBb) derived from the combined analysis of the radial velocity curves and photometric light curves.
| Ba | Bb | |
|
|
||
| Orbital period (day) | 1.0189569 ± 0.0000008 | |
| Zero point of ephemeris (HJD) | 2 452 550.62838 ± 0.0018 | |
| Eccentricity | 0 (assumed) | |
| Inclination (°) | 48.2 ± 1.4 | |
| Longitude of periastron (°) | 90 | 270 |
| Systemic velocity (km s-1) | 50.4 ± 9.2 | |
| Semi-amplitude of velocity (km s-1) | 243.0±15.7 | 243.2 ± 15.7 |
| Semi-major axis (R⊙) | 13.1 ± 0.7 | |
| Surface normalised potential | 3.58 ± 0.10 | |
| Mass (M⊙) | 14.6 ± 2.3 | 14.6± 2.3 |
| Mass ratio (M2/M1) | 1.00 ± 0.06 | |
| Mean equatorial radius (R⊙) | 5.52 ± 0.55 | 5.33 ± 0.52 |
| Polar radius (R⊙) | 4.96 ± 0.47 | 4.82 ± 0.45 |
| Side radius (R⊙) | 5.26 ± 0.55 | 5.08 ± 0.52 |
| Back radius (R⊙) | 5.84 ± 0.77 | 5.57 ± 0.69 |
| Projected rotational velocitya (km s-1) | 203 ± 15 | 198 ± 14 |
| Surface effective gravityb (log g) | 4.19 ± 0.05 | 4.16 ± 0.05 |
| Luminosity ratio (V-filter) (L2/L1) | 0.897 ± 0.023 | |
| Luminosity ratio (B-filter) (L2/L1) | 0.889 ± 0.033 | |
| Third light (V-filter) (l3) | 0.462 ± 0.044 | |
| Third light (B-filter) (l3) | 0.579 ± 0.018 | |
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