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Home All issues Volume 541 (May 2012) A&A, 541 (2012) A143 Full HTML
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Table 1

Program stars and their parameters.

   1 2 3 4 5 6 7 8 9 10    11     12     
   Star Teff log    g ξt [Fe/H] log ϵ(Ca) N σ log ϵ(Ca) log ϵ(Ca) [Ca/H] [Ca/Fe]
K km s-1 sub. lines 422.67 nm 866.22 nm
turnoff stars
BS 16023–046 6360 4.5 1.4 –2.97 3.77 8 0.09 3.54 3.74 –2.59 0.38
BS 16968–061 6040 3.8 1.5 –3.05 3.77 11 0.08 3.70 3.70 –2.59 0.46
BS 17570–063 6240 4.8 0.5 –2.92 3.80 12 0.06 3.70 3.70 –2.56 0.36
CS 22177–009 6260 4.5 1.2 –3.10 3.64 11 0.09 3.52 3.61 –2.72 0.38
CS 22888–031 6150 5.0 0.5 –3.28 3.45 10 0.11 3.33 3.36 –2.91 0.37
CS 22948–093 6360 4.3 1.2 –3.43 3.49 4 0.06 3.37 3.59 –2.87 0.56
CS 22953–037 6360 4.3 1.4 –2.89 3.83 11 0.10 3.71 3.73 –2.53 0.36
CS 22965–054 6090 3.8 1.4 –3.04 3.93 12 0.22 3.78 3.71 –2.43 0.61
CS 22966–011 6200 4.8 1.1 –3.07 3.69 11 0.10 3.60 3.51 –2.67 0.40
CS 29499–060 6320 4.0 1.5 –2.70 4.05 14 0.12 3.94 4.08 –2.31 0.39
CS 29506–007 6270 4.0 1.7 –2.91 4.05 14 0.09 3.95 3.85 –2.31 0.60
CS 29506–090 6300 4.3 1.4 –2.83 4.09 14 0.11 3.90 3.93 –2.27 0.56
CS 29518–020 6240 4.5 1.7 –2.77 4.03 10 0.18   –   – –2.33 0.44
CS 29518–043 6430 4.3 1.3 –3.24 3.71 11 0.17 3.54 3.60 –2.65 0.59
CS 29527–015 6240 4.0 1.6 –3.55 3.35 4 0.20 3.06 3.26 –3.01 0.54
CS 30301–024 6330 4.0 1.6 –2.75 4.16 15 0.08 4.00 4.04 –2.20 0.55
CS 30339–069 6240 4.0 1.3 –3.08 3.81 11 0.13 3.79 3.77 –2.55 0.53
CS 31061–032 6410 4.3 1.4 –2.58 4.23 14 0.14 4.16   – –2.13 0.45
giants
HD 2796 4950 1.5 2.1 –2.47 4.33 16 0.09 4.32 4.45 –2.03 0.43
HD 122563 4600 1.1 2.0 –2.82 3.97 16 0.08 3.93 3.95 –2.39 0.42
HD 186478 4700 1.3 2.0 –2.59 4.31 16 0.11 4.33 4.12 –2.05 0.53
BD +17°3248 5250 1.4 1.5 –2.07 4.74 14 0.05 4.74 4.70 –1.62 0.45
BD –18°5550 4750 1.4 1.8 –3.06 3.88 16 0.09 3.72 3.80 –2.48 0.58
CD –38°245 4800 1.5 2.2 –4.19 2.72 4 0.13 2.30 2.64 –3.64 0.55
BS 16467–062 5200 2.5 1.6 –3.77 3.22 9 0.23 2.97 2.97 –3.14 0.63
BS 16477–003 4900 1.7 1.8 –3.36 3.59 16 0.12 3.32 3.45 –2.77 0.59
BS 17569–049 4700 1.2 1.9 –2.88 4.04 16 0.14 4.06 3.90 –2.32 0.56
CS 22169–035 4700 1.2 2.2 –3.04 3.64 16 0.09 3.34 3.70 –2.72 0.32
CS 22172–002 4800 1.3 2.2 –3.86 3.11 11 0.09 2.52 3.11 –3.25 0.61
CS 22186–025 4900 1.5 2.0 –3.00 3.89 15 0.08 3.73 3.90 –2.47 0.53
CS 22189–009 4900 1.7 1.9 –3.49 3.27 12 0.07 2.95 3.40 –3.09 0.40
CS 22873–055 4550 0.7 2.2 –2.99 3.89 16 0.09 3.73 3.75 –2.47 0.52
CS 22873–166 4550 0.9 2.1 –2.97 3.92 16 0.09 3.84 3.92 –2.44 0.53
CS 22878–101 4800 1.3 2.0 –3.25 3.68 16 0.12 3.30 3.65 –2.68 0.57
CS 22885–096 5050 2.6 1.8 –3.78 3.10 8 0.11 2.83 2.98 –3.26 0.52
CS 22891–209 4700 1.0 2.1 –3.29 3.58 16 0.08 3.33 3.45 –2.78 0.51
CS 22892–052* 4850 1.6 1.9 –3.03 3.84 14 0.12 3.65 3.80 –2.52 0.51
CS 22896–154 5250 2.7 1.2 –2.69 4.12 16 0.12 4.01 4.00 –2.23 0.46
CS 22897–008 4900 1.7 2.0 –3.41 3.45 11 0.12 3.05 3.35 –2.91 0.50
CS 22948–066 5100 1.8 2.0 –3.14 3.69 14 0.09 3.45 3.60 –2.67 0.47
CS 22949–037* 4900 1.5 1.8 –3.97 3.01 9 0.10 2.75 3.20 –3.35 0.61
CS 22952–015 4800 1.3 2.1 –3.43 3.29 12 0.08 2.95 3.25 –3.07 0.36
CS 22953–003 5100 2.3 1.7 –2.84 3.89 16 0.10 3.74 3.85 –2.47 0.37
CS 22956–050 4900 1.7 1.8 –3.33 3.69 16 0.09 3.49 3.75 –2.67 0.66
CS 22966–057 5300 2.2 1.4 –2.62 4.23 16 0.09 4.21 4.10 –2.13 0.49
CS 22968–014 4850 1.7 1.9 –3.56 3.06 10 0.10 2.67 2.89 –3.29 0.27
CS 29491–053 4700 1.3 2.0 –3.04 3.89 16 0.08 3.68 3.85 –2.47 0.57
CS 29495–041 4800 1.5 1.8 –2.82 4.05 16 0.07 4.00 3.95 –2.31 0.51
CS 29502–042 5100 2.5 1.5 –3.19 3.55 13 0.08 3.41 3.40 –2.81 0.38
CS 29516–024 4650 1.2 1.7 –3.06 3.99 16 0.12 3.93   – –2.37 0.69
CS 29518–051 5200 2.6 1.4 –2.69 4.14 16 0.07 4.07 4.10 –2.22 0.47
CS 30325–094 4950 2.0 1.5 –3.30 3.61 15 0.08 3.51 3.55 –2.75 0.55
CS 31082–001 4825 1.5 1.8 –2.91 4.01 14 0.08 4.01 3.90 –2.35 0.56

Notes. The stars marked with an asterisk are carbon-rich. Columns 2 to 5 give the main parameters of the stars. Column 6 is the NLTE calcium abundance deduced from the subordinate Ca I  lines with the number of lines and the standard deviation (Cols. 7 and 8). Columns 9 and 10 list the abundance of Ca derived from a NLTE computation of the 422.67 and 866.22 nm lines. The last two columns give [Ca/H] and [Ca/Fe] based on the calcium abundance deduced from the Ca I subordinate lines.

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