Tests and calibrations of stellar models with two triply eclipsing triple systems

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Volume 694 (February 2025)

A&A, 694 (2025) A305

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Table 4.

Fit of the TIC 323486857 system.

	S1	S2	S3
Y	$0 . 269_{- 0.008}^{+ 0.021}$ $0.269_{-0.008}^{+0.021}$	$0 . 285_{- 0.021}^{+ 0.015}$ $0.285_{-0.021}^{+0.015}$	$0 . 263_{- 0.003}^{+ 0.023}$ $0.263_{-0.003}^{+0.023}$
Z	$0 . 0146_{- 0.0017}^{+ 0.0022}$ $0.0146_{-0.0017}^{+0.0022}$	$0 . 0164_{- 0.0023}^{+ 0.0025}$ $0.0164_{-0.0023}^{+0.0025}$	$0 . 0138_{- 0.0020}^{+ 0.0019}$ $0.0138_{-0.0020}^{+0.0019}$
			$0 . 04_{- 0.03}^{+ 0.08}$ $0.04_{-0.03}^{+0.08}$
β	0.02 ± 0.02	$0 . 28_{- 0.02}^{+ 0.00}$ $0.28_{-0.02}^{+0.00}$	$0 . 13_{- 0.10}^{+ 0.09}$ $0.13_{-0.10}^{+0.09}$
			$0 . 26_{- 0.02}^{+ 0.02}$ $0.26_{-0.02}^{+0.02}$
M_cc, 1 (M_⊙)	$0 . 103_{- 0.006}^{+ 0.008}$ $0.103_{-0.006}^{+0.008}$	$0 . 147_{- 0.006}^{+ 0.004}$ $0.147_{-0.006}^{+0.004}$	$0 . 102_{- 0.010}^{+ 0.017}$ $0.102_{-0.010}^{+0.017}$
M_cc, 2 (M_⊙)	$0 . 021_{- 0.010}^{+ 0.015}$ $0.021_{-0.010}^{+0.015}$	$0 . 111_{- 0.007}^{+ 0.004}$ $0.111_{-0.007}^{+0.004}$	$0 . 067_{- 0.031}^{+ 0.029}$ $0.067_{-0.031}^{+0.029}$
Age (Gyr)	$2 . 23_{- 0.15}^{+ 0.16}$ $2.23_{-0.15}^{+0.16}$	$2 . 39_{- 0.17}^{+ 0.19}$ $2.39_{-0.17}^{+0.19}$	$2 . 33_{- 0.16}^{+ 0.18}$ $2.33_{-0.16}^{+0.18}$

T_eff, 1 (K)	6470(50)	6480(54)	6476(51)
[Fe/H]₁	−0.08(7)	−0.03(6)	0.02(7)
M₁ (M_⊙)	1.40(2)	1.40(2)	1.40(2)
R₁ (R_⊙)	1.90(5)	1.92(6)	1.90(5)
T_eff, 2 (K)	6398(53)	6384(56)	6412(52)
[Fe/H]₂	−0.06(7)	−0.01(7)	0.02(7)
M₂ (M_⊙)	1.21(2)	1.22(3)	1.21(2)
R₂ (R_⊙)	1.32(3)	1.36(4)	1.32(3)
T_eff, 3 (K)	4894(37)	4905(40)	4906(40)
[Fe/H]₃	0.05(7)	0.11(6)	0.02(7)
M₃ (M_⊙)	1.57(3)	1.57(3)	1.58(3)
R₃ (R_⊙)	6.63(39)	6.46(36)	7.01(34)
χ²	8.27	8.79	1.93
χ_1, 2²	2.44	1.55	1.08

Notes. S1 and S2 are obtained by imposing a common β value for all the stars and allowing microscopic diffusion to modify the surface [Fe/H] and adopting 100 K as uncertainty in the tertiary star T_eff. S3 allows independent β values and neglects the effect of microscopic diffusion on surface [Fe/H] and adopts 600 K as uncertainty in the tertiary star T_eff.

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