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Table 4

Parameters of the eccentric binary systems. Inclinations in brackets stand for non-eclipsing systems.

Parameters Model E1 Model E2 Model E3 Model E4 Model E5

Period (day) 6.08 15.093 9.6466 5.604 5.816
Eccentricity 0.46 0.234 0.156 0.259 0.133
Argument of periastron of secondary (°) 197.4 202.5 302 284 82
Mass ratio 0.44 0.54 0.63 0.74 0.98
Inclination (°) (60) (32) (56) (60) 67.2
Mass of primary (M) 45 68.5 36.2 24.5 27.8
Mass of secondary (M) 20 37.3 22.9 18.2 27.2
Primary polar temperature (K) 49 000 39 300 40 500 32 800 34 350
Secondary polar temperature (K) 36 500 40 100 35 000 31 200 34 000
Polar radius of primary (R) 9.2 24.0 9.5 10.3 16.0
Polar radius of secondary (R) 7.0 10.0 7.7 7.9 14.5
v1sin (i) (km s-1) 135 144 102 152 135
v2sin (i) (km s-1) 145 75 164 133 135
βa of primary 0.64 2.06 1.80 1.09 0.81
βa of secondary 0.91 2.59 3.57 1.24 0.89

TIDES code parameters

Viscosity, ν, of primary ( day-1) 0.05 0.045 0.028 0.05 0.05
Viscosity, ν, of secondary ( day-1) 0.05 0.01 0.028 0.02 0.02
Layer depth 0.01 0.1 0.07 0.02 0.1
Polytropic index of primary 1.5 3 1.5 3 3
Polytropic index of secondary 1.5 1.5 1.5 1.5 3
Number of azimuthal  ×  latitudinal partitions 500 × 20 500 × 20 500 × 20 500 × 20 500 × 20

Notes. 

(a)

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

References. From Antokhina et al. (2000), Rauw et al. (2000), Gies et al. (2002), Sana et al. (2008), Mayer et al. (2008), and Sana et al. (2001) for models E1 to E5.

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