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Table 3
Observed properties of L2 Pup and best COLIBRI model parameters.
Parameter | Observed | Ref. | Model | Δ [σ]a |
|
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Current mass Mact [M⊙] | 0.659 ± 0.043 | K16 | 0.63 | −0.6 |
Initial mass Mini [M⊙] | 0.98 | – | ||
Radius R [R⊙] | 123 ± 14 | K14 | 121 | −0.1 |
Effective gravity log g [cgs] | 0.078 ± 0.027 | K16 | 0.072 | + 0.2 |
Luminosity L [L⊙] | 2000 ± 700 | K14 | 2347 | + 0.6 |
Effective temperature Teff [K] | 3500 ± 250 | K14 | 3629 | + 0.5 |
Pulsation period P [days] | 138.3 ± 1.7 | B02 | 141.5 | + 1.9 |
Pulsation mode order | 0 | – | ||
Metallicity Z | 0.008 | – | ||
Carbon-to-oxygen ratio C/O | 0.46 | – | ||
Mass of helium core MHe [M⊙] | 0.55 | – | ||
Mass-loss rate Ṁ [M⊙ yr-1] | 5 × 10-7 | B02 | 3 × 10-8 | – |
Notes.
(a)
Δ is the difference between the model and observed values expressed in number of times the error bar of the measurement.
Reference. B02: Bedding et al. (2002); K14: Kervella et al. (2014); K16: present work.
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