Table 1.
Parameters of the V456 Cyg system measured in Sect. 3.
| Parameter | Value |
|---|---|
| rA + rB | 0.5228 ± 0.0010 |
| k | 0.935 ± 0.012 |
| i (°) | 83.198 ± 0.052 |
| J | 0.7701 ± 0.0063 |
| L3 | −0.0344 ± 0.0059 |
| Linear LD coeff. for star A | 0.248 ± 0.026 |
| Linear LD coeff. for star B | 0.285 ± 0.025 |
| Quadratic LD coeff. for star A | 0.232 (fixed) |
| Quadratic LD coeff. for star B | 0.229 (fixed) |
| P (d) | 0.891193 ± 0.000006 |
| T0 (BJD/TDB) | 2458709.73570 ± 0.0000 |
Semi-major axis a ( ) |
5.881 ± 0.043 |
| KA (km s−1) | 152.1 ± 1.7 ( * ) |
| KB (km s−1) | 179.4 ± 1.7 ( * ) |
| rA | 0.2701 ± 0.0015 |
| rB | 0.2563 ± 0.0019 |
| Light ratio | 0.665 ± 0.014 |
Mass of star A ( ) |
1.859 ± 0.041 |
Mass of star B ( ) |
1.576 ± 0.037 |
Radius of star A ( ) |
1.588 ± 0.015 |
Radius of star B ( ) |
1.507 ± 0.016 |
| log g of star A (c.g.s.) | 4.306 ± 0.006 |
| log g of star B (c.g.s.) | 4.279 ± 0.008 |
| Teff of star A (K) | 7750 ± 100 ( * ) |
| Teff of star B (K) | 7250 ± 120 |
Notes. Parameters with a superscripted N were calculated using the nominal physical constants and solar quantities defined by the IAU (Prša et al. 2016). Starred quantities were taken from Bakış et al. (2014). The upper part of the table contains fitted quantities and the lower part contains derived quantities.
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