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Table 2
Statistics for the three groups studied (comparison sample – NP, low-mass planets – LMP, high-mass planets – HMP) for [C/H] vs. [Fe/H] and [C/Fe] vs. Teff and [Fe/H] (see Figs. 4 and 5).
| [C/Fe] vs. Teff | ||||
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| Slope | Slopeerr | R * | σR | |
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| NP | 6.74E-05 | 7.13E-06 | 0.35 | 8.7 |
| LMP | 6.24E-05 | 3.95E-05 | 0.33 | 1.5 |
| HMP | 3.38E-05 | 2.16E-05 | 0.17 | 1.6 |
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| [C/H] vs. [Fe/H] | ||||
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| Slope | Slopeerr | R | σ R | |
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| NP | 0.97 | 8.02E-03 | 0.98 | 24.5 |
| LMP | 0.93 | 4.06E-2 | 0.98 | 4.6 |
| HMP | 1.00 | 2.90E-02 | 0.97 | 9.0 |
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| [C/Fe] vs. [Fe/H] | ||||
| (for [Fe/H] < 0.0) | ||||
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| Slope | Slopeerr | R | σR | |
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| NP | –0.10 | 1.57E-02 | –0.31 | 6.1 |
| LMP | –0.15 | 8.24E-02 | –0.46 | 1.7 |
| HMP | –0.20 | 8.31E-02 | –0.49 | 2.5 |
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| [C/Fe] vs. [Fe/H] | ||||
| (for [Fe/H] > 0.0) | ||||
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| Slope | Slopeerr | R | σ R | |
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| NP | 0.00 | 3.46E-02 | 0.01 | 0.1 |
| LMP | 0.14 | 1.10E-1 | 0.44 | 1.2 |
| HMP | 0.07 | 7.50E-02 | 0.12 | 0.9 |
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