Table 8
Stellar properties and 1σ uncertainties derived from modeling HD 122563 (no atomic diffusion) and Gmb 1830 (with atomic diffusion).
| HD 122563 | Gmb 1830 | |||||||
| Property | EFF EOS | CEFF EOS | OPAL EOS | |||||
|
|
||||||||
| M (M⊙) | 0.855 ± 0.025 | 0.635 ± 0.025 | 0.625 ± 0.015 | 0.620 ± 0.020 | ||||
| Yi | 0.245 ± 0.015 | 0.235 ± 0.025 | 0.230 ± 0.020 | 0.235 ± 0.025 | ||||
| Zi/Xi | 0.00010 ± 0.00002 | 0.0016 ± 0.0004 | 0.0016 ± 0.0004 | 0.0016 ± 0.0004 | ||||
| α | 1.31 ± 0.08 | 0.68 ± 0.10 | 0.63 ± 0.08 | 0.65 ± 0.10 | ||||
| Age (Gyr) | 12.6 ± 0.1 |
12.1 ± 0.2 |
12.7 ± 0.3 |
12.3 ± 0.3 |
||||
| R (R⊙) | 24.1 ± 1.1 | 0.665 ± 0.014 | 0.665 ± 0.015 | 0.665 ± 0.015 | ||||
| L (L⊙) | 230 ± 7 | 0.213 ± 0.002 | 0.213 ± 0.002 | 0.213 ± 0.002 | ||||
| Teff (K) | 4598 ± 42 | 4815 ± 52 | 4814 ± 53 | 4815 ± 50 | ||||
| log g (dex) | 1.60 ± 0.04 | 4.60 ± 0.02 | 4.59 ± 0.02 | 4.58 ± 0.02 | ||||
| [Z/X] s | –2.38 ± 0.10 | –1.32 ± 0.11 | –1.32 ± 0.11 | –1.33 ± 0.11 | ||||
| ⟨ Δν ⟩ preda (μHz) | 1.06 ± 0.06 | 198 ± 6 | 197 ± 7 | 196 ± 6 | ||||
| νmaxpreda (μHz) | 5.16 ± 0.38 | 4886 ± 190 | 4809 ± 199 | 4768 ± 188 | ||||
Notes. The first five values are the input parameters of the model and the other values are properties of these models. The uncertainties are derived by perturbing each of the model parameters individually until the edge of the error box is reached.
⟨ Δν ⟩ and νmax are the predicted seismic quantities according to the scaling relations from Brown & Gilliland (1994); Kjeldsen & Bedding (1995), and the range of values listed consider all the uncertainties in the five model parameters.
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