Fig. 1
HARPS radial-velocity data for the eight stars presented in this paper. Temporal velocities (filled dots) and fitted orbital solutions (solid lines) are displayed in the upper panels. Residuals to the fitted orbits are displayed in the bottom panels. For HD 28254 and HD 44219, the dashed lines in the upper panels show additional quadratic radial-velocity drifts that were included to the orbital fits. For all the other targets, the upper panels dashed lines represent the systemic velocity γ.
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