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Table 2.
Properties of the eclipsing binary KIC 4054905.
| RA (J2000) (a) | 19 : 23 : 40.543 |
|---|---|
| Dec (J2000) (a) | +39 : 10 : 11.60 |
| Kp (a) | 12.984 |
| Dynamical parameters | |
| Orbital period (days) | 274.72881(97) |
| Reference time Tp | 55503.4588(16) |
| Inclination i (°) | 89.284(13) |
| Eccentricity e | 0.37201(47) |
| Periastron longitude ω (°) | 35.17(12) |
| Sum of the fractional radii rs + rp | 0.051903(90) |
| Ratio of the radii k | 0.36960(58) |
| Surface brightness ratio J | 1.302(18) |
 |
0.18631(16) |
| Kp (km s−1) | 21.915(34) |
| Ks (km s−1) | 21.87(13) |
| semi-major axis a(R⊙) | 260.69(72) |
| γp (km s−1) | 11.295(24) |
| γs (km s−1) | 11.43(11) |
| Massp (M⊙) | 0.9544(94) |
| Masss (M⊙) | 0.9566(59) |
| Radiusp (R⊙) | 8.364(27) |
| Radiuss (R⊙) | 3.0911(94) |
| log gp (cgs) | 2.5730(26) |
| log gs (cgs) | 3.4385(19) |
| ρp(ρ⊙) | 0.001631(23) |
| Lp (L⊙) from R and Teff | 34.87(2.02) |
| Ls (L⊙) from R and Teff | 6.59(1.21) |
| Gaia parameters | |
| G (mag) | 13.011 |
 |
0.18735 |
| Gp (mag) | 13.197 |
| Gs (mag) | 15.158 |
| AG (mag) | 0.291 |
| ϖ (mas) | 0.42139(1145) |
| ϖzp cor, Lindegren (mas) (b) | −0.02189 |
| νeff | 1.4485245 |
| ecl_lat | 60.1765086 |
| BCG,p (mag) | −0.070 |
| BCG,s (mag) | +0.004 |
| Lp (L⊙) from G (c) | 29.47(2.13) |
| Ls (L⊙) from G (c) | 5.16(37) |
| Lp (L⊙) from KS (c) | 32.65(1.70) |
| Ls (L⊙) from KS (c) | 6.15(32) |
| U(km s−1) (d) | 139.5 |
| V(km s−1) (d) | −28.5 |
| W(km s−1) (d) | −29.6 |
| RA (J2000) (a) | 19 : 23 : 40.543 |
| Dec (J2000) (a) | +39 : 10 : 11.60 |
| Spectroscopic parameters | |
| Teff, p (K) | 4850(70) |
| Teff, s (K) | 5260(240) |
| [Fe/H] | −0.60(2) |
| [α/Fe] | +0.33(09) |
| Asteroseismic stellar parameters | |
| fΔν correction factor (e) | 0.9644 |
| Massp, scaling (M⊙) | 1.024(48) |
| Radiusp, scaling (R⊙) | 8.44(15) |
| log gp, scaling (cgs) | 2.5955(58) |
| ρp, scaling (ρ⊙) | 0.001701(21) |
| Age estimate | |
| Agedyn (Gyr) | 9.9 ± 0.6 |
Notes. Solar units are from Prša et al. (2016).
(b)
Gaia EDR3 correction to the parallax using Lindegren et al. (2021). To be subtracted from ϖ in the line above.
(e)
Using Rodrigues et al. (2017).
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