Abundances of lithium, oxygen, and sodium in the turn-off stars of Galactic globular cluster 47 Tucanae

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Table 2

Atomic parameters of the spectral lines used in the abundance determinations of lithium, oxygen, and sodium.

Element	λ, nm	χ, eV	log gf^a	log γ_rad^b	log ^c	log ^d

Li i	670.776	0.000	−0.009	7.56	−5.78	−7.574
Li i	670.791	0.000	−0.309	7.56	−5.78	−7.574
O i	777.194	9.146	0.324	7.52	−5.55	−7.443^e
O i	777.539	9.146	−0.046	7.52	−5.55	−7.443^e
Na i	818.326	2.102	0.230	7.52^e	−5.62^e	−7.425^e
Na i	819.482	2.104	0.490	7.52^e	−5.62 ^e	−7.425 ^e

Notes.

^(a)

Kurucz (1993);

^(b)

natural broadening constant (Kupka et al. 2000);

^(c)

stark broadening constant (Kupka et al. 2000);

^(d)

van der Waals broadening constant (Kupka et al. 2000);

^(e)

classical value (Castelli 2005b).

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