Table 3.
Comparison between observationally derived parameters of Altair by Monnier et al. (2007) and a manual fit to effective temperatures, radii and equatorial velocity with a two-dimensional ESTER model.
| Parameters | Monnier et al. (2007) | ESTER model |
|---|---|---|
| M (M⊙) | 1.791 | 1.65 |
| Tpole (K) | 8450 ± 140 | 8450 |
| Teq (K) | 6860 ± 150 | 6849 |
| Rpole (R⊙) | 1.634 ± 0.011 | 1.627 |
| Req (R⊙) | 2.029 ± 0.007 | 2.027 |
| veq (km s−1) | 285.5 ± 6 | 274 |
| Z | 0.014 | |
| [M/H] | −0.2 | |
| Xc | – | 0.35 |
Notes. The values in boldface are the ones which were adjusted so that the other parameters (output of ESTER) would match those of Monnier et al. (2007).
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