Short-term spectroscopic variability of Plaskett’s star

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Volume 572 (December 2014)

A&A, 572 (2014) A16

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Table 3

Parameters used for simulation with the TIDES + CoMBiSpeC model.

Parameters	Primary	Secondary

Period (day)	14.396
Eccentricity	0
Inclination (°)	67
Mass (M_⊙)	58.2	60.6
Polar temperature (K)	33 000	32 000
Polar radius (R_⊙)	20.0	20.7
Polar log(g) (cgs)	≃ 3.5	≃ 3.5
v_rot (km s^-1)	70.3	296
vsini (km s^-1)	64.7	273
β ^a	1.0	4.12
Viscosity, ν ( d^-1)	0.028	0.035
Layer depth (ΔR/R)	0.07	0.07
Polytropic index	1.5	1.5
Number of azimuthal partitions	500	500
Number of latitudinal partitions	20	20

Notes.

^(a)

The β parameter measures the asynchronicity of the star at periastron and is defined by , where v_rot is the equatorial rotation velocity, R is the equilibrium radius, and e is the eccentricity.

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