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Table 4
Na, Mg, K, and Ca abundances derived for the LTE, NLTE-s, and NLTE-m calculations.
| Star | LTE | NLTE-s | NLTE-m | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | A(X) | Vmac | χ2 | A(X) | Vmac | χ2 | A(X) | Vmac | χ2 | |
| Na | ||||||||||
| Procyon | 935 | 6.36 ± 0.09 | 2.87 ± 1.44 | 0.92 | 6.14 ± 0.05 | 6.68 ± 0.85 | 0.25 | 6.13 ± 0.05 | 6.69 ± 0.86 | 0.25 |
| Sun | 2358 | 6.29 ± 0.05 | 1.45 ± 4.19 | 8.09 | 6.15 ±0.04 | 1.25 ± 1.28 | 4.35 | 6.15 ± 0.04 | 1.25 ± 1.29 | 4.35 |
| Arcturus | 501 | 5.91 ± 0.06 | 2.18 ± 2.30 | 0.65 | 5.80 ±0.05 | 3.82 ± 1.33 | 0.62 | 5.80 ± 0.05 | 3.81 ± 1.32 | 0.62 |
| Mg | ||||||||||
| Procyon | 2504 | 7.42 ± 0.06 | 6.52 ± 1.77 | 1.14 | 7.42 ± 0.05 | 7.10 ± 1.45 | 1.03 | 7.42 ± 0.05 | 7.12 ± 1.46 | 1.02 |
| Sun | 2729 | 7.56 ± 0.02 | 2.32 ± 2.28 | 1.86 | 7.56 ± 0.02 | 3.36 ± 1.55 | 1.40 | 7.56 ± 0.02 | 3.38 ± 1.55 | 1.40 |
| Arcturus | 1192 | 7.40 ± 0.05 | 3.93 ± 1.68 | 3.26 | 7.39 ± 0.05 | 5.13 ± 1.19 | 3.02 | 7.39 ± 0.05 | 5.16 ± 1.20 | 3.03 |
| K | ||||||||||
| Procyon | 120 | 5.71 ± 3.06 | 2.32 ± 1.56 | 0.06 | 5.05 ± 0.04 | 5.60 ± 0.26 | 0.01 | 5.05 ± 0.04 | 5.60 ± 0.26 | 0.01 |
| Sun | 182 | 5.36 ± 0.07 | 0.99 ± 1.03 | 0.04 | 5.09 ± 0.04 | 1.30 ± 1.10 | 0.01 | 5.09 ± 0.04 | 1.30 ± 1.10 | 0.01 |
| Arcturus | 182 | 4.98 ± 0.05 | 3.95 ± 0.30 | 0.02 | 4.54 ± 0.04 | 5.25 ± 0.20 | 0.02 | 4.55 ± 0.05 | 5.23 ± 0.20 | 0.02 |
| Ca | ||||||||||
| Procyon | 1410 | 6.17 ± 0.07 | 3.68 ± 1.12 | 2.78 | 6.13 ± 0.06 | 5.01 ± 0.81 | 2.23 | 6.10 ± 0.06 | 4.95 ± 0.74 | 2.27 |
| Sun | 6116 | 6.35 ± 0.05 | 0.77 ± 1.77 | 5.92 | 6.37 ± 0.05 | 0.71 ± 1.76 | 4.76 | 6.30 ± 0.04 | 0.69 ± 1.57 | 3.93 |
| Arcturus | 2026 | 5.97 ± 0.08 | 3.28 ± 1.36 | 7.88 | 5.99 ± 0.08 | 3.60 ± 1.20 | 8.81 | 5.98 ± 0.08 | 3.61 ± 1.10 | 8.80 |
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