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Table 8
Vertical abundance gradients in thick- and thin-disc stars (ΔX/ Δ | Z |), errors on the slopes (ϵ), and number of stars in the corresponding subsamples (n).
| Line |
|
ϵ | n |
|
ϵ | n |
|
|
|
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|
|
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| main | clean | |||||
|
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| Thin disc | ||||||
| [ α/M] | 0.041 | 0.004 | 397 | 0.036 | 0.006 | 185 |
| [ Mg i/M] | 0.041 | 0.006 | 397 | 0.044 | 0.008 | 185 |
| [ Al i/M] | 0.051 | 0.006 | 389 | 0.020 | 0.008 | 185 |
| [ Si i/M] | 0.006 | 0.008 | 387 | 0.018 | 0.011 | 185 |
| [ Ca ii/M] | 0.034 | 0.010 | 397 | 0.039 | 0.013 | 185 |
| [ M/H] | –0.079 | 0.013 | 397 | –0.070 | 0.015 | 185 |
| [ Fe i/H] | –0.107 | 0.009 | 397 | –0.057 | 0.016 | 185 |
|
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| Thick disc | ||||||
| [ α/M] | 0.033 | 0.002 | 334 | 0.011 | 0.005 | 104 |
| [ Mg i/M] | 0.044 | 0.004 | 334 | 0.024 | 0.008 | 104 |
| [ Al i/M] | 0.054 | 0.004 | 319 | 0.041 | 0.006 | 104 |
| [ Si i/M] | 0.047 | 0.005 | 322 | 0.026 | 0.010 | 104 |
| [ Ca ii/M] | 0.039 | 0.007 | 334 | 0.018 | 0.011 | 104 |
| [ M/H] | –0.046 | 0.010 | 334 | –0.013 | 0.010 | 104 |
| [ Fe i/H] | –0.072 | 0.006 | 334 | –0.037 | 0.016 | 104 |
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