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Table 7.
SB1 frequency–metallicity relation: parameters of linear fits obtained from set 2 as illustrated on Figs. 21 and 23.
Type | a | b | [Fe/H] |
---|---|---|---|
[% dex−1] | [%] | valid range | |
SB1 dwarfs | |||
F | 7.6 | 16.7 | [ − 1.1, +0.5] |
G | −24.2 ± 5.7 | 0.0 ± 6.3 | [ − 1.3, +0.0] |
K | −12.7 | 7.4 | [ − 0.3, +0.2] |
SB1 giants | |||
G | −2.5 ± 0.7 | 5.2 ± 0.8 | [ − 1.5, +0.2] |
K | −5.5 ± 2.1 | 20.3 ± 3.0 | [ − 2.2, +0.2] |
Total SB1 | |||
F | −2.1 | 5.2 | [ − 1.2, −0.5] |
G | −13.3 ± 4.5 | 0.0 ± 5.1 | [ − 1.3, +0.0] |
K | −7.7 ± 1.3 | 16.2 ± 1.2 | [ − 2.2, +0.2] |
Total SB1 | |||
All spectral types | −8.8 ± 3.0 | 7.1 ± 2.0 | [ − 2.4, +0.4] |
Notes. The a and b parameters correspond to the slope and the y-intercept, respectively.
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