Modelling of eclipsing binary systems with pulsating components and tertiary companions: BF Vel and RR Lep

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Table 2.

Results of optimal curve-fitting to the radial velocity and light curves of BF Vel using WD modelling.

Parameter	B	V	I	Sector 35-1	Sector 35-2	Sector 62
T₀	2459266.8845 HJD			2459266.8853 BJD
P (d)	0.7040299
a (R_⊙)	4.76 ± 0.03	4.74 ± 0.05	4.77 ± 0.05	4.74 ± 0.04	4.74 ± 0.04	4.74 ± 0.04
V₀ (km s⁻¹)	4.1 ± 1.1	5.3 ± 1.8	4.1 ± 1.2	5.1 ± 1.4	5.4 ± 1.4	5.4 ± 1.3

K₁ (km s⁻¹)	116.4 ± 11.5	113.0 ± 3.8	116.5 ± 4.0	113.0 ± 4.7	113.0 ± 4.7	113.0 ± 3.6
K₂ (km s⁻¹)	223.4 ± 17.8	226.0 ± 3.1	224.1 ± 3.4	225.9 ± 4.8	225.9 ± 4.9	225.9 ± 2.7
Δϕ	−0.0003 ± 0.0004	−0.0001 ± 0.0001	−0.0002 ± 0.0001	0.0002 ± 0.0001	0.0001 ± 0.0001	0.0010 ± 0.0001
i (°)	84.3 ± 0.8	84.5 ± 0.1	83.6 ± 0.1	84.4 ± 0.2	84.3 ± 0.2	84.3 ± 0.1
T₁ (K)	8100 (fixed)
T₂ (K)	4436 ± 116	4518 ± 24	4587 ± 20	4613 ± 19	4613 ± 18	4552 ± 17
Ω₁	3.55 ± 0.06	3.45 ± 0.02	3.49 ± 0.02	3.43 ± 0.02	3.43 ± 0.02	3.41 ± 0.01
Ω₂	2.91	2.87	2.92	2.88	2.87	2.87
q = M₂/M₁	0.52 ± 0.01	0.50 ± 0.01	0.52 ± 0.01	0.50 ± 0.01	0.50 ± 0.01	0.50 ± 0.01
r₁ (mean)	0.34 ± 0.04	0.35 ± 0.02	0.34 ± 0.02	0.35 ± 0.02	0.35 ± 0.02	0.35 ± 0.01
r₂ (mean)	0.32 ± 0.01	0.32 ± 0.01	0.32 ± 0.01	0.32 ± 0.01	0.32 ± 0.01	0.32 ± 0.01
L₁	0.86 ± 0.02	0.86 ± 0.01	0.81 ± 0.01	0.74 ± 0.01	0.75 ± 0.01	0.86 ± 0.02
L₂	0.04 ± 0.01	0.07 ± 0.01	0.14 ± 0.01	0.13 ± 0.01	0.13 ± 0.01	0.14 ± 0.01
L₃	0.10 ± 0.02	0.07 ± 0.01	0.05 ± 0.01	0.13 ± 0.01	0.12 ± 0.01	–

Spot parameters
β (deg)	–	–	–	–	–	30 ± 7
λ (deg)	–	–	–	–	–	292 ± 4
γ (deg)	–	–	–	–	–	30 ± 3
κ	–	–	–	–	–	0.85 ± 0.06

$χ_{red}^{2}$ $\chi^{2}_{\mathrm{red}}$ (RV₁)	1.84	1.96	1.84	1.93	1.97	1.96
$χ_{red}^{2}$ $\chi^{2}_{\mathrm{red}}$ (RV₂)	1.32	1.31	1.33	1.31	1.31	1.32
ν (RV)	20	20	20	20	20	20
ΔRV (km s⁻¹)	12	12	12	12	12	12

$χ_{red}^{2}$ $\chi^{2}_{\mathrm{red}}$ (LC)	1.96	1.07	1.04	1.6	1.51	2.15
ν (LC)	1086	1246	1293	7379	5707	9628
Δl (LC)	0.004	0.004	0.004	0.002	0.002	0.002

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