Sulfur abundances in three Galactic clusters: Ruprecht 106, Trumpler 5, and Trumpler 20

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Table 2

Atmospheric parameters and metallicities obtained in this work.

Star	T_eff ±50 [K]	log ɡ ±0.1 [cgs]	ξ ±0.1 [km s⁻¹]	[Fe/H]
Ruprecht 106

676	4806	1.54	1.91	−1.37 ± 0.11
801	4881	1.71	1.84	−1.32 ± 0.13
1614	4314	0.52	2.33	−1.38 ± 0.12
1863	4820	1.57	1.90	−1.41 ± 0.12
1951	4554	1.01	2.13	−1.34 ± 0.11
2004	4353	0.59	2.29	−1.45 ± 0.11
2032	4838	1.61	1.88	−1.36 ± 0.13

Trumpler 5

1318	4582	2.55	1.04	−0.48 0.15
3416	4869	2.52	1.27	−0.51 ± 0.13
3678	4910	2.47	1.33	−0.48 ± 0.14
4528	4686	2.47	1.16	−0.45 ± 0.16
4791	4818	2.47	1.26	−0.57 0.15
4876	5163	2.41	1.56	−0.50 ± 0.13

Trumpler 20

100 292	4575	2.16	1.24	0.00 ± 0.15
340	4997	2.86	1.18	0.04 ± 0.15
542	5042	2.88	1.19	0.15 ± 0.14
591	4382	2.18	1.07	0.04 ± 0.16

Notes. Typical errors on the atmospheric parameters are indicated. The errors on the reported [Fe/H] abundances are the standard deviations of the measurements of individual lines.

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