The solar sulphur abundance in view of large-scale atomic structure calculations and 3D non-LTE models

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Table 1.

Parameters for diagnostic S I lines.

λ_air/nm	Lower	Upper	E_low/eV	σ/a₀²	α	log gf
λ_air/nm	Lower	Upper	E_low/eV	σ/a₀²	α	Exp.	`BSR`	`CIV3`	`GRASP`
469.54	$3 p^{3} (^{4} S^{o}) 4 s^{5} S_{2}^{o}$ $\mathrm{ 3p^{3}(^{4}S^{o})4s\, ^{5}S^{o}_{2} }$	3p³(⁴S^o)5p ⁵P₂	6.5245	1280	0.267		−1.87	−1.75	−1.83
675.68	3p³(⁴S^o)4p ⁵P₃	$3 p^{3} (^{4} S^{o}) 5 d^{5} D_{2}^{o}$ $\mathrm{ 3p^{3}(^{4}S^{o})5d\, ^{5}D^{o}_{2} }$	7.8699	2833	0.247		−1.78		−1.86
675.70	3p³(⁴S^o)4p ⁵P₃	$3 p^{3} (^{4} S^{o}) 5 d^{5} D_{3}^{o}$ $\mathrm{3p^{3}(^{4}S^{o})5d\, ^{5}D^{o}_{3}}$	7.8699	2832	0.248		−0.94		−1.01
675.72	3p³(⁴S^o)4p ⁵P₃	$3 p^{3} (^{4} S^{o}) 5 d^{5} D_{4}^{o}$ $\mathrm{3p^{3}(^{4}S^{o})5d\, ^{5}D^{o}_{4}}$	7.8699	2832	0.248		−0.35		−0.43
867.02	3p³(⁴S^o)4p ⁵P₁	$3 p^{3} (^{4} S^{o}) 4 d^{5} D_{0}^{o}$ $\mathrm{3p^{3}(^{4}S^{o})4d\, ^{5}D^{o}_{0}}$	7.8663	1417	0.302		−0.91	−0.83	−0.92
869.46	3p³(⁴S^o)4p ⁵P₃	$3 p^{3} (^{4} S^{o}) 4 d^{5} D_{4}^{o}$ $\mathrm{3p^{3}(^{4}S^{o})4d\, ^{5}D^{o}_{4}}$	7.8699	1415	0.302		+0.05	+0.19	+0.04
1045.54	$3 p^{3} (^{4} S^{o}) 4 s^{3} S_{1}^{o}$ $\mathrm{3p^{3}(^{4}S^{o})4s\, ^{3}S^{o}_{1}}$	3p³(⁴S^o)4p ³P₂	6.8601	625	0.228	+0.25	+0.26	+0.27	+0.26
1045.68	$3 p^{3} (^{4} S^{o}) 4 s^{3} S_{1}^{o}$ $\mathrm{ 3p^{3}(^{4}S^{o})4s\, ^{3}S^{o}_{1} }$	3p³(⁴S^o)4p ³P₀	6.8601	625	0.228	−0.45	−0.44	−0.43	−0.44
1045.94	$3 p^{3} (^{4} S^{o}) 4 s^{3} S_{1}^{o}$ $\mathrm{ 3p^{3}(^{4}S^{o})4s\, ^{3}S^{o}_{1} }$	3p³(⁴S^o)4p ³P₁	6.8601	625	0.228	+0.03	+0.04	+0.05	+0.04

Notes. Hydrogen collisional-broadening parameters based on ABO theory with σ being the cross-section at reference velocity 10⁴ m s⁻¹ and α the exponent, such that the cross-section is v^−α. Experimental oscillator strengths (Exp.) from Zerne et al. (1997) and theoretical oscillator strengths (BSR, CIV3, GRASP) in the Babushkin (length) gauge from Zatsarinny & Bartschat (2006), Deb & Hibbert (2008), and Li et al. (2025), respectively.

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