Open Access

Table 5.

Resulting parameters of ε Ori based on a compromise among interferometry, spectroscopy, and SED.

Parameter Value Uncertainty Unit Note
m 28.42 2.0 M fitted
Prot 4.27 0.0 + 1.0 $ ^{+1.0}_{-0.0} $ d fitted
i 45 20 deg fitted
Ω 301.6 30 deg fitted
d 384 8 pc fixed
Teff 24985 1000 K fixed
log g 3.011 0.1 cgs fixed
β 1.0 0.1 1 fixed
γ 25.0 0.9 km s−1 derived
γLSR 8.2 0.7 km s−1 derived
Requiv 27.36 1.5 R derived
Rpole 22.29 1.2 R derived
Requ 33.61 1.8 R derived
θequiv 0.667 0.035 mas derived
θpole 0.540 0.064 mas derived
θequ 0.814 0.073 mas derived
L 271 000 38 000 L derived
v sin i 220 100 + 40 $ ^{+40}_{-100} $ km s−1 derived
v 326 120 + 50 $ ^{+50}_{-120} $ km s−1 derived
f 1.47 0.35 rad/d derived
Fobs 57.8 ⋅ 10−9 4 ⋅ 10−9 W m−2 derived

Notes. m denotes the mass; Prot, the rotation period; i, the inclination of the stellar rotation axis with respect to the sky; Ω, the longitude of the ascending node of the star (i.e. equator); d, the distance; Teff, the effective temperature; log g, the logarithm of surface gravity; β, bolometric gravity brightening exponent; γ, the systemic velocity; γLSR, the systemic velocity with respect to the local standard of rest; Requiv, the equivalent radius; Rpole, the pole radius; Requ, the equatorial radius; θequiv, the equivalent angular diameter; θpole, the polar angular diameter; θequ, the equatorial angular diameter; L, the luminosity; vrot sin i, the projected rotation velocity; vrot, the rotation velocity; and f, the rotation frequency.

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.