Non-LTE abundances of Mg and K in extremely metal-poor stars and the evolution of [O/Mg], [Na/Mg], [Al/Mg], and [K/Mg] in the Milky Way

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Table 1:

Adopted model and potassium abundance for our sample of stars. In the last column the letter m indicates that the giant has been found ``mixed'' (see text).
	star	$T_{\rm eff}$	$\log g$	$v_{\rm t}$		LTE	NLTE	NLTE	NLTE	LTE	NLTE	NLTE	NLTE
		(K)		$\rm (km ~s^{-1})$	[Fe/H]	$\rm\epsilon(Mg)$	$\rm\epsilon(Mg)$	[Mg/H]	[Mg/Fe]	$\rm\epsilon(K)$	$\rm\epsilon(K)$	[K/H]	[K/Fe]	Rem
	GIANTS
01	HD 2796	4950	1.5	2.1	-2.47	5.54	5.74	-1.84	0.63	3.25	2.90	-2.22	0.25	m
02	HD 122563	4600	1.1	2.0	-2.82	5.29	5.39	-2.19	0.63	2.78	2.57	-2.55	0.27	m
03	HD 186478	4700	1.3	2.0	-2.59	5.55	5.72	-1.86	0.73	3.10	2.85	-2.27	0.32	m
04	BD +17:3248	5250	1.4	1.5	-2.07	6.00	6.19	-1.39	0.68	3.77	3.35	-1.77	0.30	m
05	BD -18:5550	4750	1.4	1.8	-3.06	4.99	5.14	-2.44	0.62	2.63	2.45	-2.67	0.39
06	CD -38:245	4800	1.5	2.2	-4.19	3.66	4.02	-3.56	0.63	-	-	-	-	m
07	BS 16467-062	5200	2.5	1.6	-3.77	3.95	4.24	-3.34	0.43	1.85	1.70	-3.42	0.35
08	BS 16477-003	4900	1.7	1.8	-3.36	4.76	4.86	-2.72	0.64	2.30	2.04	-3.08	0.28
09	BS 17569-49	4700	1.2	1.9	-2.88	5.36	5.47	-2.11	0.77	2.84	2.59	-2.53	0.35	m
10	CS 22169-035	4700	1.2	2.2	-3.04	4.76	4.92	-2.66	0.38	2.55	2.37	-2.75	0.29	m
11	CS 22172-002	4800	1.3	2.2	-3.86	3.89	4.19	-3.39	0.47	1.85	1.67	-3.45	0.41
12	CS 22186-025	4900	1.5	2.0	-3.00	5.05	5.19	-2.39	0.61	2.68	2.47	-2.65	0.35	m
13	CS 22189-009	4900	1.7	1.9	-3.49	4.29	4.47	-3.11	0.38	2.20	2.06	-3.06	0.43
14	CS 22873-055	4550	0.7	2.2	-2.99	5.11	5.24	-2.34	0.65	2.60	2.39	-2.73	0.26	m
15	CS 22873-166	4550	0.9	2.1	-2.97	5.27	5.44	-2.14	0.83	2.71	2.52	-2.60	0.37	m
16	CS 22878-101	4800	1.3	2.0	-3.25	4.85	5.02	-2.56	0.69	2.35	2.16	-2.96	0.29	m
17	CS 22885-096	5050	2.6	1.8	-3.78	4.13	4.39	-3.19	0.59	1.80	1.72	-3.40	0.38
18	CS 22891-209	4700	1.0	2.1	-3.29	4.76	4.89	-2.69	0.60	2.35	2.15	-2.97	0.32	m
19	CS 22892-052^*	4850	1.6	1.9	-3.03	4.90	5.06	-2.52	0.51	2.55	2.34	-2.78	0.25
20	CS 22896-154	5250	2.7	1.2	-2.69	5.22	5.52	-2.06	0.63	2.88	2.62	-2.50	0.19
21	CS 22897-008	4900	1.7	2.0	-3.41	4.54	4.75	-2.83	0.58	2.20	2.02	-3.10	0.31
22	CS 22948-066	5100	1.8	2.0	-3.14	4.81	4.99	-2.59	0.55	2.55	2.37	-2.75	0.39	m
23	CS 22949-037^*	4900	1.5	1.8	-3.97	5.07	5.16	-2.42	1.55	1.50	1.32	-3.80	0.17	m
24	CS 22952-015	4800	1.3	2.1	-3.43	4.20	4.51	-3.07	0.36	2.15	1.99	-3.13	0.30	m
25	CS 22953-003	5100	2.3	1.7	-2.84	5.03	5.24	-2.34	0.50	2.60	2.42	-2.70	0.14
26	CS 22956-050	4900	1.7	1.8	-3.33	4.59	4.99	-2.59	0.74	2.20	2.09	-3.03	0.30
27	CS 22966-057	5300	2.2	1.4	-2.62	5.39	5.69	-1.89	0.73	2.95	2.77	-2.35	0.27
28	CS 22968-014	4850	1.7	1.9	-3.56	4.27	4.54	-3.04	0.52	1.83	1.77	-3.35	0.21
29	CS 29491-053	4700	1.3	2.0	-3.04	5.09	5.24	-2.34	0.70	2.69	2.42	-2.70	0.34	m
30	CS 29495-041	4800	1.5	1.8	-2.82	5.23	5.49	-2.09	0.73	2.91	2.63	-2.49	0.33
31	CS 29502-042	5100	2.5	1.5	-3.19	4.74	5.06	-2.52	0.67	2.26	2.07	-3.05	0.14
32	CS 29516-024	4650	1.2	1.7	-3.06	5.25	5.34	-2.24	0.82	-	-	-	-
33	CS 29518-051	5200	2.6	1.4	-2.69	5.27	5.56	-1.02	0.67	2.94	2.67	-2.45	0.24	m
34	CS 30325-094	4950	2.0	1.5	-3.30	4.81	5.04	-2.54	0.76	2.65	2.42	-2.70	0.60
35	CS 31082-001	4825	1.5	1.8	-2.91	5.21	5.49	-2.09	0.82	2.80	2.47	-2.65	0.26
	TURNOFF
1	BS 16023-046	6360	4.5	1.4	-2.97	4.67	4.97	-2.61	0.36
2	BS 16968-061	6040	3.8	1.5	-3.05	4.82	5.12	-2.46	0.59
3	BS 17570-063	6240	4.8	0.5	-2.92	4.74	5.06	-2.52	0.40
4	CS 22177-009	6260	4.5	1.2	-3.10	4.70	5.11	-2.47	0.63
5	CS 22888-031	6150	5.0	0.5	-3.28	4.51	5.04	-2.54	0.74
6	CS 22948-093	6360	4.3	1.2	-3.43	4.33	4.72	-2.86	0.57
7	CS 22953-037	6360	4.3	1.4	-2.89	5.05	5.34	-2.24	0.65
8	CS 22965-054	6090	3.8	1.4	-3.04	4.79	5.16	-2.42	0.62
9	CS 22966-011	6200	4.8	1.1	-3.07	4.72	5.01	-2.57	0.50
10	CS 29499-060	6320	4.0	1.5	-2.70	5.07	5.44	-2.14	0.56
11	CS 29506-007	6270	4.0	1.7	-2.91	4.95	5.33	-2.25	0.66
12	CS 29506-090	6300	4.3	1.4	-2.83	5.02	5.36	-2.22	0.61
13	CS 29518-020	6240	4.5	1.7	-2.77	4.87	5.31	-2.27	0.50
14	CS 29518-043	6430	4.3	1.3	-3.24	4.57	4.94	-2.64	0.60
15	CS 29527-015	6240	4.0	1.6	-3.55	4.46	4.86	-2.72	0.83
16	CS 30301-024	6330	4.0	1.6	-2.75	5.11	5.33	-2.25	0.50
17	CS 30339-069	6240	4.0	1.3	-3.08	4.68	5.04	-2.54	0.54
18	CS 31061-032	6410	4.3	1.4	-2.58	5.22	5.44	-2.14	0.44

^(*) An asterisk after the name of the star means that the star is carbon-rich.

Source LaTeX | All tables | In the text

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