Observational constraints on the origin of the elements - IV. Standard composition of the Sun

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Table 4.

Solar photospheric abundances derived in NLTE.

El.	A(El), σ_tot	A(El), σ_tot	Δ_{STAGGER − CO5BOLD}	σ_stat
	1D ^(a) NLTE	⟨3D⟩ ^(b) NLTE ^(c)
C	8.48 ± 0.08	8.56 ± 0.06	0.016	0.05
N	7.88 ± 0.12	7.98 ± 0.10	−0.011	0.1
O	8.74 ± 0.04	8.77 ± 0.04	0.014	0.02
Mg	7.45 ± 0.08	7.55 ± 0.06	0.020	0.06
Si	7.54 ± 0.07	7.59 ± 0.07	0.005	0.06
Ca	6.34 ± 0.05	6.37 ± 0.05	0.026	0.04
Fe	7.49 ± 0.08	7.51 ± 0.06	0.012	0.08
Ni	6.21 ± 0.04	6.24 ± 0.04	0.001	0.07

Notes. See the text for details.

^(a)

1D MARCS model atmosphere.

^(b)

⟨3D⟩ STAGGER model atmosphere.

^(c)

LTE for C and N.

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