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Fig. 5

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Top panel: best fit radial velocity curve (curved solid line) as a function of orbital phase. The orbital radial velocity curve signals an eccentric orbit of e = 0.23 and P = 60.8 d. A circular orbit (e = 0) does not fit (curved dashed line) the observations (solid dots). The γ-velocity of +28.4 km   s-1 (solid horizontal line) is larger than 12.3 km   s-1 (dashed horizontal line) when e is set equal to 0. Middle panel: the ASAS V-brightness curve shows two minima signaling an eclipsing binary system. Bottom panel: the symbols mark the V-brightness values in the middle panel with errorbars. The model best fit is drawn with a smooth curve (see Sect. 4.1).

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