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Table 1
Spectroscopic surface and binary parameters from XTGRID.
| Primary parameters: | |||
|---|---|---|---|
| Teff | 37 140 ± 850 K | ||
| logg | 5.588 ± 0.098 cm s−2 | ||
| Projected rotation | <3 km s−1 | ||
| Chemical composition: | |||
| Element (X) | Abundance | Mass fraction | Solar fraction |
| lognX∕nH | mX∕mTotal | logϵ∕ϵ⊙ | |
| H (reference) | 0 | 9.18e-01 | 0.03 |
| He | –1.69 ± 0.09 | 7.41e-02 | –0.59 |
| C | <–5.2 | <8.64e-06 | <–2.51 |
| N | –4.74 ± 0.61 | 2.07e-04 | –0.59 |
| O | <–4.8 | <1.05e-04 | <–1.80 |
| F | –4.73 ± 0.20 | 3.20e-04 | 2.73 |
| Ne | <–4.1 | <1.32e-04 | <–1.05 |
| Na | –4.1 ± 0.5 | 8.27e-05 | 0.38 |
| Mg | –5.5 ± 0.6 | 7.50e-05 | –1.04 |
| Al | <–6.2 | <1.27e-05 | <–0.71 |
| Si | <–5.8 | <5.62e-05 | <–1.14 |
| P | <–6.2 | <1.83e-05 | <0.43 |
| S | <–5.3 | <1.47e-04 | <–0.39 |
| Ar | <–5.0 | <3.53e-04 | <0.61 |
| K | <–6.0 | <1.41e-05 | <0.51 |
| Ca | <–5.4 | <1.32e-04 | <0.24 |
| Ti | <–5.4 | <1.49e-04 | <1.61 |
| V | <–5.3 | <2.29e-04 | <2.79 |
| Cr | <–5.1 | <3.33e-04 | <1.23 |
| Mn | <–5.2 | <3.19e-04 | <1.40 |
| Fe | –5.4 ± 0.5 | 1.18e-04 | –1.11 |
| Co | <–5.5 | <1.58e-04 | <1.51 |
| Ni | <–4.8 | <7.27e-04 | <0.94 |
| Cu | <–5.8 | <7.44e-05 | <1.95 |
| Zn | <–4.8 | <8.84e-04 | <2.62 |
| Ga | <–5.6 | <1.36e-04 | <3.32 |
| Ge | <–4.7 | <1.13e-03 | <3.61 |
| Sr | <–6.6 | <1.98e-05 | <2.55 |
| Y | <–7.2 | <5.38e-06 | <2.64 |
| Zr | <–6.5 | <2.47e-05 | <2.92 |
| Pb | –5.1 |
1.33e-03 | 5.13 |
| Companion parameters: | |||
| Dilution factor(a) at 8900 Å | 0.632 ± 0.050 | ||
 |
6270 ± 35 Å | ||
| Teff | 5980 ± 200 K | ||
| log g | 4.70 ± 0.3 cm s−2 | ||
| Metallicity [M/H](b) | −1.02 ± 0.15 | ||
| Alpha enhancement [α/M] | 0.20 ± 0.05 | ||
| Projected rotation | 4.1 km s−1 |
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