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Table 3
Chemical differences for stars in different evolutionary stages.
| IC 4651 | M 67 | NGC 2447 | NGC 2632 | NGC 3680 | |||||||||
| D | ΔG | D | ΔG | D | ΔG | D | ΔG | D | ΔG | ||||
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| Iron peak | [Fe I/H] | 0.02 | –0.04 | –0.04 | –0.03 | –0.12 | –0.01 | 0.11 | –0.04 | –0.10 | –0.03 | ||
| [Fe II/Fe] | 0.04 | –0.07 | 0.00 | –0.01 | 0.00 | –0.01 | 0.05 | –0.05 | 0.01 | –0.02 | |||
| [V I/Fe] | 0.06 | 0.01 | 0.07 | 0.00 | 0.06 | –0.02 | 0.07 | –0.03 | 0.09 | –0.05 | |||
| [Cr I/Fe] | 0.00 | 0.02 | –0.01 | 0.01 | 0.01 | 0.01 | 0.03 | 0.01 | 0.01 | –0.01 | |||
| [Cr II/Fe] | 0.07 | –0.05 | 0.01 | 0.02 | 0.04 | –0.03 | 0.05 | –0.01 | 0.06 | –0.04 | |||
| [Mn I/Fe] | 0.04 | 0.03 | 0.02 | 0.03 | –0.04 | 0.04 | 0.06 | –0.02 | –0.02 | 0.02 | |||
| [Co I/Fe] | 0.04 | –0.01 | 0.06 | –0.03 | 0.00 | –0.01 | 0.02 | –0.01 | 0.01 | –0.02 | |||
| [Ni I/Fe] | –0.01 | 0.00 | –0.01 | 0.01 | –0.09 | 0.04 | –0.02 | 0.03 | –0.06 | 0.02 | |||
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| α elements | [Mg I/Fe] | 0.06 | 0.01 | 0.07 | 0.07 | 0.02 | 0.08 | –0.01 | 0.05 | 0.07 | 0.07 | ||
| [Si I/Fe] | 0.08 | 0.09 | 0.06 | 0.10 | 0.03 | 0.07 | 0.05 | 0.13 | 0.05 | 0.12 | |||
| [Ca I/Fe] | 0.05 | –0.05 | 0.04 | –0.02 | 0.05 | 0.03 | 0.03 | 0.01 | 0.07 | –0.05 | |||
| [Ti I/Fe] | 0.00 | 0.02 | 0.02 | 0.00 | 0.01 | 0.04 | –0.02 | 0.00 | 0.01 | 0.01 | |||
| [Ti II/Fe] | –0.04 | 0.07 | –0.01 | 0.04 | –0.04 | 0.06 | –0.07 | 0.06 | –0.02 | 0.06 | |||
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| Others | [Na I/Fe] | 0.01 | 0.29 | 0.01 | 0.20 | –0.09 | 0.33 | 0.03 | 0.31 | –0.03 | 0.18 | ||
| [Sc II/Fe] | –0.04 | 0.08 | –0.01 | 0.05 | –0.07 | 0.07 | –0.05 | 0.09 | –0.04 | 0.08 | |||
| [Ba II/Fe] | –0.04 | 0.01 | –0.13 | –0.03 | 0.25 | –0.05 | –0.09 | 0.08 | 0.00 | 0.08 | |||
| [Y II/Fe] | 0.01 | –0.01 | 0.01 | –0.06 | 0.10 | 0.00 | –0.01 | 0.03 | 0.07 | –0.04 | |||
| ⋆ | 6 | 2 | 28 | 14 | 3 | 3 | 11 | 2 | 2 | 3 | |||
Notes. Dwarfs (D) values and differences relative to giants (G) where G = D + ΔG. Iron abundances from neutral lines ([Fe I/H]) were used as a proxy for total iron abundance ([Fe/H]). The number of stars is indicated in the last row (⋆).
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