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Table 9.
Mean abundance ratios for the clusters.
Ratio | Collinderr 350 | Gulliver 51 | Ruprecht 171 |
---|---|---|---|
Odd-elements | |||
[Na/Fe] | 0.25 ± 0.10 | 0.12 ± 0.12 | 0.14 ± 0.03 |
[Al/Fe] | −0.01 ± 0.10 | 0.00 ± 0.09 | 0.02 ± 0.03 |
α-elements | |||
[Mg/Fe] | 0.05 ± 0.15 | 0.07 ± 0.09 | 0.02 ± 0.04 |
[Si/Fe] | 0.03 ± 0.12 | 0.07 ± 0.10 | 0.03 ± 0.02 |
[Ca/Fe] | −0.01 ± 0.12 | −0.02 ± 0.10 | −0.01 ± 0.02 |
[Sc/Fe] | 0.00 ± 0.13 | 0.06 ± 0.11 | 0.09 ± 0.02 |
[Ti/Fe] ( * *) | 0.00 ± 0.14 | −0.01 ± 0.13 | 0.02 ± 0.03 |
Iron-peak elements | |||
[V/Fe] | 0.00 ± 0.15 | 0.04 ± 0.14 | 0.10 ± 0.03 |
[Cr/Fe] | 0.02 ± 0.13 | −0.01 ± 0.11 | −0.01 ± 0.02 |
[Co/Fe] | −0.02 ± 0.14 | −0.02 ± 0.14 | 0.10 ± 0.02 |
[Ni/Fe] | −0.06 ± 0.13 | −0.05 ± 0.12 | 0.03 ± 0.02 |
Neutron-capture elements | |||
[Y/Fe] | 0.04 ± 0.16 | 0.08 ± 0.12 | 0.01 ± 0.03 |
[Zr/Fe] ( * ), ( * *) | 0.13 ± 0.14 | 0.21 ± 0.12 | 0.09 ± 0.04 |
[La/Fe] | −0.13 ± 0.13 | −0.07 ± 0.12 | −0.22 ± 0.03 |
[Ce/Fe] ( * ) | −0.04 ± 0.14 | 0.04 ± 0.14 | −0.04 ± 0.03 |
[Eu/Fe] ( * ) | −0.03 ± 0.12 | 0.08 ± 0.29 | −0.02 ± 0.06 |
Notes. Abundance ratios on our Solar scale, with the exception of ( * ), which are calculated using the solar value from Grevesse et al. (2007). ( * *)Indicates the average value between [Ti I/Fe] and [Ti II/Fe], and [Zr I/Fe] and [Zr II/Fe].
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