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Table 3

Differential chemical abundances of our sample stars for 22 elements (24 species), relative to the Sun.

[X/H] (subgiant stars) [X/H] (turn-off stars)
Species Y519 Y923 Y1844 Y535 Y1388 Y2235
C I 0.091 ± 0.022 0.014 ± 0.018 0.041 ± 0.012 −0.111 ± 0.024 −0.063 ± 0.023 0.013 ± 0.021
O I (a) 0.048 ± 0.025 0.023 ± 0.024 0.068 ± 0.027 −0.096 ± 0.023 −0.047 ± 0.027 0.023 ± 0.019
Na I (a) 0.080 ± 0.018 0.063 ± 0.021 0.054 ± 0.009 −0.122 ± 0.013 −0.084 ± 0.016 0.021 ± 0.008
Mg I (a) 0.132 ± 0.010 0.103 ± 0.006 0.123 ± 0.008 −0.117 ± 0.015 −0.067 ± 0.009 0.066 ± 0.012
Al I (a) 0.091 ± 0.008 0.053 ± 0.007 0.085 ± 0.015 −0.179 ± 0.008 −0.128 ± 0.038 −0.014 ± 0.011
Si I (a) 0.117 ± 0.008 0.099 ± 0.014 0.088 ± 0.010 −0.099 ± 0.011 −0.052 ± 0.009 0.047 ± 0.009
S I 0.102 ± 0.026 0.082 ± 0.027 0.073 ± 0.027 −0.100 ± 0.026 −0.084 ± 0.027 −0.030 ± 0.026
Ca I 0.093 ± 0.014 0.074 ± 0.014 0.082 ± 0.014 −0.087 ± 0.017 −0.056 ± 0.016 0.052 ± 0.017
Sc II 0.096 ± 0.022 0.085 ± 0.026 0.102 ± 0.028 −0.114 ± 0.023 −0.105 ± 0.028 0.045 ± 0.026
Ti I (a) 0.058 ± 0.022 0.062 ± 0.024 0.048 ± 0.022 −0.100 ± 0.021 −0.085 ± 0.023 0.015 ± 0.020
Ti II 0.105 ± 0.021 0.083 ± 0.024 0.082 ± 0.023 −0.125 ± 0.032 −0.127 ± 0.026 0.023 ± 0.028
V I 0.083 ± 0.020 0.127 ± 0.022 0.086 ± 0.032 −0.088 ± 0.024 −0.079 ± 0.029 0.031 ± 0.032
Cr I 0.074 ± 0.015 0.062 ± 0.023 0.047 ± 0.019 −0.122 ± 0.024 −0.081 ± 0.026 0.003 ± 0.021
Mn I 0.065 ± 0.022 0.012 ± 0.021 0.015 ± 0.029 −0.170 ± 0.027 −0.158 ± 0.032 −0.011 ± 0.025
Fe I (a) 0.085 ± 0.012 0.078 ± 0.013 0.074 ± 0.013 −0.122 ± 0.015 −0.074 ± 0.016 0.046 ± 0.015
Fe II 0.085 ± 0.018 0.076 ± 0.023 0.074 ± 0.023 −0.127 ± 0.019 −0.079 ± 0.023 0.041 ± 0.020
Co I 0.091 ± 0.020 0.064 ± 0.022 0.032 ± 0.024 −0.077 ± 0.017 −0.083 ± 0.018 0.011 ± 0.022
Ni I 0.080 ± 0.013 0.078 ± 0.015 0.072 ± 0.014 −0.145 ± 0.017 −0.099 ± 0.018 0.023 ± 0.018
Cu I 0.113 ± 0.039 0.065 ± 0.039 0.085 ± 0.026 −0.173 ± 0.022 −0.128 ± 0.040 0.040 ± 0.023
Zn I −0.004 ± 0.030 −0.010 ± 0.030 0.034 ± 0.013 −0.210 ± 0.031 −0.137 ± 0.019 −0.053 ± 0.022
Sr I 0.039 ± 0.031 0.051 ± 0.032 0.067 ± 0.032 −0.074 ± 0.031 −0.071 ± 0.032 0.021 ± 0.032
Y II 0.095 ± 0.023 0.058 ± 0.031 0.087 ± 0.029 −0.145 ± 0.024 −0.124 ± 0.026 0.030 ± 0.025
Ba II 0.117 ± 0.024 0.111 ± 0.030 0.100 ± 0.025 −0.128 ± 0.034 −0.063 ± 0.039 0.069 ± 0.030
Ce II 0.086 ± 0.033 0.079 ± 0.037 0.077 ± 0.037 −0.129 ± 0.035 −0.134 ± 0.036 −0.022 ± 0.034

Notes. (a) Abundances are NLTE corrected, line by line relative to the Sun.

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