Open Access
Table 1
Model structure for Vega.
| Input parameters | |
|---|---|
| Inclination, i (degrees) | 6.2(a) |
| Stellar mass, M/M⊙ | 2.15(a) |
| Polar temperature, Tpole (K) | 10000 |
| Equatorial radius, Req/R⊙ | 2.726(a) |
| Normalised ω, Ω/ΩK | 0.510 |
| Metallicity, [M/H] | −0.50 |
| Derived parameters | ||
|---|---|---|
| This work | Other works | |
| Rpole/R⊙ | 2.412 | 2.418 ± 0.012(a) |
| Req/Rpole | 1.130 | 1.127(a) |
| Teq (K) | 8902 | 8910 ± 130(a) |
| Lbol/L⊙ | 46.5 | 47.2 ± 2.0(a) |
| Teq/Tpole | 0.890 | 0.885(a) |
| log geq | 3.769 | |
| log gpole | 4.005 | |
| υeq (km s−1) | 197.8 | 195 ± 15(b) |
| υeq sin i (km s−1) | 21.4 | 21.6 ± 0.3(b) |
Averaged ![$\[T_{\mathrm{eff}}^{\mathrm{aver}}\]$](/articles/aa/full_html/2024/08/aa49895-24/aa49895-24-eq23.png){kind=small} (K) |
9430 | 9360 ± 90(a) |
Averaged log ![$\[g_{\mathrm{eff}}^{\mathrm{aver}}\]$](/articles/aa/full_html/2024/08/aa49895-24/aa49895-24-eq24.png){kind=small} |
3.958 | |
| Stellar surface area | 11.536(†) | |
Notes: (a)Monnier et al. (2012). (b)Takeda (2021).(†) In units of (R/Req)2. A sphere with R = 1 would have a surface area A = 12.566.
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