Studying the photometric and spectroscopic variability of the magnetic hot supergiant Orionis Aa

Free Access

Table 1

Stellar parameters for the three main components of ζ Ori, determined by Hummel et al. (2013) unless noted differently.

	Aa	Ab	B

m_V (mag)	2.08	4.28	4.01
SpT	O9.2Ib Nwk ^a	B1IV	B0III
M (M_⊙)	33 ± 10	14 ± 3	–
R (R_⊙)	20 ± 3.2	7.3 ± 1.0	–
vsini (km s^-1)	127^b	<100 ^c	350
T_eff (kK)	29.5 ± 1.0 ^d	29 ^c	–
log g (dex)	3.25 ± 0.10 ^d	4.0 ^c	–

Notes. Stellar masses and radii were determined from the photometric distance.

Reference.

^(a)

Sota et al. (2014);

^(b)

Simón-Díaz & Herrero (2014);

^(c)

Blazère et al. (2015);

^(d)

Bouret et al. (2008).

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.