Open Access
Table 1
Final regression results (slope, α, intercept, β, and coefficient of determination, R2) of [X/H]–[Fe/H] trends for both M and GK dwarfs.
| X | Coefs. | M dwarfs | GK dwarfs |
| α | 0.824 ± 0.034 | 0.544 ± 0.108 | |
| C | β | −0.016 ± 0.015 | 0.054 ± 0.019 |
| R2 | 0.90 | 0.31 | |
| α | 0.530 ± 0.049 | 0.464 ± 0.123 | |
| O | β | −0.019 ± 0.016 | 0.058 ± 0.022 |
| R2 | 0.79 | 0.23 | |
| α | 0.789 ± 0.077 | 1.096 ± 0.088 | |
| Al | β | −0.061 ± 0.028 | 0.070 ± 0.015 |
| R2 | 0.82 | 0.79 | |
| α | 0.556 ± 0.062 | 0.971 ± 0.081 | |
| Mg | β | 0.042 ± 0.023 | 0.039 ± 0.016 |
| R2 | 0.62 | 0.75 | |
| α | 0.739 ± 0.056 | 0.878 ± 0.059 | |
| Si | β | 0.014 ± 0.025 | 0.017 ± 0.011 |
| R2 | 0.90 | 0.85 | |
| α | 0.672 ± 0.046 | 1.022 ± 0.072 | |
| Ca | β | 0.033 ± 0.015 | 0.031 ± 0.014 |
| R2 | 0.81 | 0.83 | |
| α | 0.987 ± 0.202 | 1.180 ± 0.090 | |
| Na | β | −0.007 ± 0.029 | 0.018 ± 0.016 |
| R2 | 0.81 | 0.81 | |
| α | 1.079 ± 0.084 | 1.200 ± 0.071 | |
| Ni | β | 0.024 ± 0.016 | −0.027 ± 0.012 |
| R2 | 0.94 | 0.87 | |
| α | 1.510 ± 0.277 | 0.871 ± 0.067 | |
| Ti | β | 0.081 ± 0.072 | 0.030 ± 0.013 |
| R2 | 0.71 | 0.76 | |
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