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

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Table 6.

Mass transfer and mass loss parameters for both systems as alternative explanations for their ETVs.

System:	RR Lep	BF Vel

Parameter
T₀ (HJD)	2445352.644 ± 0.001	2457777.161 ± 0.001
P (d)	0.9154267 ± 0.0000001	0.7040279 ± 0.0000002
c₂ (d cycle⁻¹)	−1.1 ± 0.1 × 10⁻¹⁰	2.9 ± 0.3 × 10⁻¹⁰
$\dot{P}$ $\dot{P}$ (d yr⁻¹)	−8.8 ± 0.8 × 10⁻⁸	3.0 ± 0.3 × 10⁻⁷
${\dot{M}}_{tr}$ $\dot{M}_{\mathrm{tr}}$ (M_⊙ yr⁻¹)	10^−8, ^(a)	2.8 ± 0.4 × 10⁻⁷
${\dot{M}}_{loss}$ $\dot{M}_{\mathrm{loss}}$ (M_⊙ yr⁻¹)	−3.4 ± 0.5 × 10⁻⁸	–

∑res²	0.059	0.0029

Notes.

^(a)

Assumed.

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