The GAPS programme with HARPS-N at TNG - X. Differential abundances in the XO-2 planet-hosting binary

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Volume 583 (November 2015)

A&A, 583 (2015) A135

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Table 3

Mean internal errors in abundance determinations caused by given uncertainties (ΔT_eff, Δlog g, and Δξ) in stellar parameters for XO-2N and XO-2S.

XO-2N	T_eff = 5290 K	log g = 4.43	ξ = 0.86 km s^-1

Δ	ΔT_eff = ± 18 K	Δlog g = ± 0.10	Δξ = ± 0.06 km s^-1

[C/H]	0.02	0.05	0.02
[N/H]	0.01	0.05	0.01
[O/H]	0.00	0.05	0.02
[Na/H]	0.013	0.003	0.010
[Mg/H]	0.003	0.002	0.005
[Al/H]	0.013	0.013	0.010
[Si/H]	0.005	0.001	0.003
[S/H]	0.010	0.006	0.006
[Ca/H]	0.016	0.002	0.015
[Sc/H]	0.002	0.003	0.005
[Ti i/H]	0.022	0.002	0.026
[Ti ii/H]	0.003	0.002	0.016
[V/H]	0.024	0.001	0.008
[Cr i/H]	0.017	0.002	0.016
[Cr ii/H]	0.009	0.003	0.013
[Mn/H]	0.017	0.001	0.029
[Fe i/H]	0.010	0.001	0.015
[Fe ii/H]	0.013	0.004	0.014
[Co/H]	0.008	0.002	0.003
[Ni/H]	0.003	0.001	0.018
[Cu/H]	0.006	0.003	0.017
[Zn/H]	0.005	0.001	0.019
[Y/H]	0.003	0.003	0.030
[Zr/H]	0.001	0.003	0.023
[Ba/H]	0.006	0.001	0.043
[La/H]	0.003	0.006	0.003
[Nd/H]	0.004	0.004	0.007
[Eu/H]	0.001	0.006	0.001

XO-2S	T_eff = 5325 K	log g = 4.420	ξ = 0.93 km s^-1

Δ	ΔT_eff = ± 37 K	Δlog g = ± 0.094	Δξ = ± 0.03 km s^-1

[C/H]	0.04	0.05	0.01
[N/H]	0.02	0.05	0.01
[O/H]	0.00	0.05	0.01
[Na/H]	0.023	0.020	0.003
[Mg/H]	0.013	0.015	0.002
[Al/H]	0.022	0.007	0.003
[Si/H]	0.011	0.001	0.004
[S/H]	0.020	0.020	0.001
[Ca/H]	0.030	0.026	0.009
[Sc/H]	0.006	0.034	0.004
[Ti i/H]	0.043	0.009	0.013
[Ti ii/H]	0.008	0.029	0.010
[V/H]	0.046	0.006	0.003
[Cr i/H]	0.034	0.016	0.015
[Cr ii/H]	0.020	0.029	0.005
[Mn/H]	0.035	0.015	0.015
[Fe i/H]	0.020	0.011	0.008
[Fe ii/H]	0.026	0.035	0.006
[Co/H]	0.017	0.017	0.003
[Ni/H]	0.006	0.004	0.009
[Cu/H]	0.016	0.006	0.006
[Zn/H]	0.012	0.005	0.009
[Y/H]	0.002	0.028	0.015
[Zr/H]	0.002	0.037	0.009
[Ba/H]	0.006	0.015	0.020
[La/H]	0.005	0.040	0.001
[Nd/H]	0.005	0.039	0.003
[Eu/H]	0.001	0.040	0.001

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