Table 1
Effective temperature and surface gravity of the primary of AA Dor, determined in previous and the present spectral analyses.
| Teff | log g | He |
|
Mpri | Ms) | Method | Reference |
| (K) | (cm/s2) | (mass fraction) | (km s-1) | (M⊙) | (M⊙) | ||
|
|
|||||||
| 41 000 | 5.4 | 0.28 | LTE1 | Kudritzki (1976) | |||
| 44 200 | 5.2 | 0.28 | NLTE1 | Kudritzki (1976) | |||
| 41 700 | 5.9 | 0.8 | LTE1 | Kudritzki (1976) | |||
| 42 000 | 5.7 | 0.8 | NLTE1 | Kudritzki (1976) | |||
40 000 |
5.3 ± 0.2 | 0.012 | 0.3 | 0.04 | NLTE1 | Kudritzki et al. (1982) | |
| 42 000 ± 1000 | 5.21 ± 0.1 | 0.0032 | 34.0 | 0.33 | 0.066 | NLTE2 | Rauch (2000) |
| 42 000 ± 1000 | 5.30 ± 0.1 | 0.0032 | 35.0 | NLTE3 | Fleig et al. (2008) | ||
| 37 800 ± 500 | 5.51 ± 0.05 | 0.005 | 30.0 | 0.51 | 0.085 | LTE4 | Müller et al. (2010) |
| 42 000 ± 1000 | 5.46 ± 0.05 | 0.0027 | 30.0 | 0.47 | 0.079 | NLTE5 | this work |
Notes.
H+He models, two grids with fixed NHe/NH ratios only, 1st investigation of NLTE effects, no errors given.
H+He+C+N+O+Mg+Si+Fe+Ni, Fe+Ni data from Kurucz (1991), optical spectra, assumed bound rotation (
km s-1).
H+He+C+N+O+Mg+Si+P+S+Ca+Sc+Ti+V+Cr+Mn+Fe+Co+Ni, Ca-Ni data from Kurucz (1991), optical and FUV spectra.
H+He+C+N+O+Mg+Si+P+S+Ca+Sc+Ti+V+Cr+Mn+Fe+Co+Ni, Ca-Ni data from Kurucz (2009), optical spectra, from Müller et al. (2010).
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