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Table 2
Stellar parameters of α Per.
| Parameter | Value | Reference |
|
|
||
| Spectral type | F5 Ib | Hipparcos |
| mv [mag] | 1.82 | Hipparcos |
| Mv [mag] | –4.67 | Hipparcos |
| B - V [mag] | 0.49 | Mermilliod (1986) |
| age [Myr] | 41 | Lyubimkov et al. (2010) |
| Distance [pc] | 156 ± 4 | Lyubimkov et al. (2010) |
| RV [km s-1] | –2.0 ± 0.1 | Gontcharov (2006) |
| –3.0 ± 1.5 | Kudryavtsev et al. (2007) | |
| Parallax [mas] | 6.44 ± 0.17 | van Leeuwen (2007) |
| 6.43 ± 0.17 | Lyubimkov et al. (2010) | |
| Diameter [mas] | 3.20 ± 0.25 | Koechlin & Rabbia (1985) |
| 2.8a, 2.9b | Pasinetti-Fracassini et al. (2001) | |
| Teff [K] | 6270 ± 120 | Evans et al. (1996) |
| 6240 ± 20 | Lee et al. (2006) | |
| 6541 ± 84 | Kovtyukh (2007) | |
| 6350 ± 100 | Lyubimkov et al. (2010) | |
| [Fe/H] | –0.28 ± 0.06 | Lee et al. (2006) |
| –0.07 ± 0.09 | Lyubimkov et al. (2010) | |
| log g | 1.5 | Evans et al. (1996) |
| 0.58 ± 0.04 | Lee et al. (2006) | |
| 2.0 | Kovtyukh et al. (2008) | |
| 1.90 ± 0.04 | Lyubimkov et al. (2010) | |
| R ⋆ [R⊙] | 60.7 | Spaan et al. (1987) |
| 55a, 51b | Pasinetti-Fracassini et al. (2001) | |
| M ⋆ [M⊙] | 7.2 | Parsons & Bouw (1971) |
| 7.2 | Becker et al. (1977) | |
| 8.4 | Spaan et al. (1987) | |
| 7.3 ± 0.3 | Lyubimkov et al. (2010) | |
| L ⋆ [L⊙] | 5500 | Spaan et al. (1987) |
| vrot sin i [km s-1] | 17.9 ± 1.0 | Gray & Toner (1987) |
| 18 | Hatzes & Cochran (1995) | |
| 17.1 ± 1.0 | de Medeiros et al. (2002) | |
| 20 | Lee et al. (2006) | |
| Prot/sin i [days] | 129–139 | Derived |
| vmicro [km s-1] | 3.20 ± 0.05 | Lee et al. (2006) |
| 5.3 ± 0.5 | Lyubimkov et al. (2010) | |
| vmacro [km s-1] | 10 | Hatzes & Cochran (1995) |
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