Atomic diffusion and mixing in old stars - V. A deeper look into the globular cluster NGC 6752

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Table 6

Average abundances obtained at two effective-temperature points.

Group	T_eff	log g	ξ	log ε(Mg)^a	log ε(Ca)^b	log ε(Ti)^c	log ε(Fe)^d
	(K)	(cgs)	(km s^-1)	NLTE	LTE	LTE	NLTE


TOP	6050	4.02	1.8	6.02 ± 0.08	4.88 ± 0.05	3.53 ± 0.05	5.75 ± 0.04
bRGB	5160	3.03	1.2	6.13 ± 0.09	4.98 ± 0.04	3.62 ± 0.04	5.83 ± 0.03
Δ(TOP − bRGB)	890	0.99	0.6	−0.11 ± 0.12	−0.11 ± 0.06	−0.09 ± 0.06	−0.08 ± 0.05

Notes.

^(a)

Based on Mg I λλ5167, 5173, 5184, and 5528.

^(b)

Based on Ca I λλ5261, 5262, 5265, 5349, 5582, 5589, 5590, 5594, 5598, 5601, and 5603.

^(c)

Based on Ti II λλ5154, 5185, 5188, 5226, and 5336.

^(d)

Based on Fe II lines λλ5146, 5169, 5197, 5234, 5264, 5276, 5284, and 5316.

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