Press Release
Free Access

Table 3

Observed properties of L2 Pup and best COLIBRI model parameters.

Parameter Observed Ref. Model Δ [σ]a

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 [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.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.