Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri

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Volume 578 (June 2015)

A&A, 578 (2015) A25

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Table 6

Light curve parameters for V1094 Tau derived using jktebop.

	u	v	b	y	NFO	URSA	Adopted

(R₁ + R₂) /a	0.10804	0.10830	0.10870	0.10870	0.10737	0.10772	0.10805
±	0.00068	0.00043	0.00047	0.00035	0.00028	0.00058	0.00026
k = R₂/R₁	0.751	0.783	0.799	0.791	0.788	0.809	0.788
±	0.018	0.014	0.017	0.010	0.012	0.018	0.006
R ₁ / a	0.06169	0.06075	0.06044	0.06069	0.06005	0.05954	0.06050
±	0.00051	0.00036	0.00043	0.00028	0.00032	0.00048	0.00024
R ₂ / a	0.04636	0.04755	0.04627	0.04801	0.04732	0.04817	0.04744
±	0.00081	0.00060	0.00071	0.00044	0.00047	0.00076	0.00029
ecosω	0.23969	0.23956	0.23957	0.23962	0.23985	0.24000
±	0.00012	0.00007	0.00007	0.00006	0.00004	0.00010
esinω	−0.11913	−0.11915	−0.11916	−0.11924	−0.11886	−0.12079
±	0.00003	0.00004	0.00004	0.00006	0.00060	0.00095
i [°]	88.31	88.20	88.20	88.19	88.22	88.19	88.210
±	0.05	0.03	0.04	0.03	0.03	0.04	0.014
J	0.851	0.850	0.876	0.899	0.897	0.873
±	0.014	0.008	0.009	0.007	0.006	0.009
ℓ = L₂/L₁	0.476	0.517	0.554	0.559	0.553	0.567
±	0.016	0.014	0.019	0.011	0.013	0.020
x ₁	= 0.821	= 0.810	= 0.753	= 0.662	= 0.662	= 0.662
x ₂	= 0.841	= 0.822	= 0.769	= 0.679	= 0.678	= 0.678
N	492	492	492	492	3503	5714
σ [mmag]	8.5	5.4	5.3	5.2	6.5	10.0

Constraints
ecosω	= 0.23970	= 0.23970	= 0.23970	= 0.23970	= 0.23976	= 0.23964
±	0.00031	0.00031	0.00031	0.00031	0.00045	0.00045
esinω	=−0.11909	=−0.11909	=−0.11909	=−0.11909	=−0.11898	=−0.11923
±	0.00039	0.00039	0.00039	0.00039	0.00076	0.00076
ℓ = L₂/L₁				=0.533	=0.557	=0.557
±				0.025	0.025	0.025

Notes. The number of observations used in the fit is N and the standard deviation of the residuals is σ. Other symbols are defined in the text. Values preceeded by “=” are fixed parameters or constraints in the least-squares fit.

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