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Table 4.
Physical properties of MML 48 eclipsing stars and their orbit.
| Parameter | Value | Units | |
|---|---|---|---|
| Orbital period | Porb | 2.0171068 ± 0.0000004 | days |
| Time of primary minimum | T0 | 2458561.71492 ± 0.00003 | BJDTDB |
| Primary temperature | Teff, 1 | 5386 ± 100 | K |
| Primary rotational velocity | υ sin i | 42.0 ± 2.0 | km s−1 |
| Primary mass | M1 | 1.2 ± 0.07 | M⊙ |
| Eccentricity | e | 0. | (fixed) |
| RV semi-amplitude | K1 | 32.86 ± 0.33 | km s−1 |
| CHIRON Systemic velocity | γCHIRON | 5.6 ± 0.15 | km s−1 |
| FEROS Systemic velocity | γFEROS | 6.2 ± 0.7 | km s−1 |
| SOAR Systemic velocity | γSOAR | 4.8 ± 0.9 | km s−1 |
| Mass ratio | qEB = M2/M1 | 0.209 ± 0.014 | |
| Semi-major axis | a | 7.61 ± 0.12 | R⊙ |
| a | 0.0354 ± 0.0006 | au | |
| Secondary mass | M2 | 0.2509 ± 0.0078 | M⊙ |
| Inclination | i | 81.372 ± 0.045 | ° |
| Primary potential | Ω1 | 5.057 ± 0.013 | |
| Secondary potential | Ω2 | 4.100 ± 0.013 | |
| Temperature ratio | Teff, 2/Teff, 1 | 0.642 ± 0.001 | |
| Primary radius | R1 | 1.574 ± 0.026 ± 0.050 | R⊙ |
| Primary surface gravity | log g1 | 4.12 ± 0.03 | dex (cgs) |
| Secondary radius | R2 | 0.587 ± 0.0095 ± 0.050 | R⊙ |
| Secondary surface gravity | log g2 | 4.28 ± 0.02 | dex (cgs) |
| Secondary temperature | Teff, 2 | 3456 ± 100 | K |
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