All Figures

$\begin{figure} \par\includegraphics[width=12.2cm,clip]{mayorf1.eps} \end{figure}$ Figure 1: $\lambda$ 3968.5 Å Ca II H absorption line region of the summed CORALIE good spectra for our candidate stars. The dotted lines indicate the exact position of the absorption line centers. A clear reemission feature is visible for HD 114386 and HD 147513, whereas only hints of reemission are observed for HD 65216, HD 83443, HD 142415, and HD 216770. The spectra have been cleaned as much as possible from the pollution of the simultaneously recorded thorium-lamp reference spectra.
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In the text

$\begin{figure} \par\mbox{\psfig{width=7cm,file=mayorf2a.eps}\hspace*{5.25mm} \ps... ...yorf2e.eps}\hspace*{0.5mm} \psfig{width=7.6cm,file=mayorf2f.eps} }\end{figure}$ Figure 2: Phase-folded radial-velocity measurements obtained with CORALIE for HD 6434, HD 19994, HD 65216, HD 92788, HD 111232 and HD 114386, superimposed on the best Keplerian planetary solution (top panel in each diagram). The residuals as a function of Julian Date are displayed in the lower panels.
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In the text

$\begin{figure} \par\psfig{width=7.6cm,file=mayorf3a.eps}\hspace*{1mm} \psfig{wid... ...le=mayorf3e.eps}\hspace*{1mm} \psfig{width=7.6cm,file=mayorf3f.eps} \end{figure}$ Figure 3: Phase-folded radial-velocity measurements obtained with CORALIE for HD 121504, HD 142415, HD 147513, HD 196050, HD 216437 and HD 216437, superimposed on the best Keplerian planetary solution (top panel in each diagram). The residuals as a function of Julian Date are displayed in the lower panels.
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In the text

$\begin{figure} \par\includegraphics[width=7.5cm,clip]{mayorf4.eps} \end{figure}$ Figure 4: Phase-folded radial-velocity measurements obtained with CORALIE for HD 83443, superimposed to the best Keplerian planetary solution (top). The residuals as a function of Julian Date are displayed in the lower panel.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{mayorf5.eps} \end{figure}$ Figure 5: Fourier transform of the residuals around the 2.98-d orbital solution of HD 83443 b Top: for radial-velocities in the 2 451 500 $\leq$ JD $\leq$ 2 451 702 period, when the 30-d period signal was seen in the data, and Bottom: for later velocities. The false alarm probability of the 30-d period in the early measurements is only $9\times 10^{-4}$ (close to the 4 $\sigma$ detection level), whereas the signal has disappeared in the later data.
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In the text

$\begin{figure} \par\includegraphics[width=8.1cm,clip]{mayorf6a.eps}\hspace*{5mm} \includegraphics[width=8.1cm,clip]{mayorf6b.eps} \end{figure}$ Figure 6: Top: temporal radial-velocity measurements obtained with CORALIE for the 2-planet systems HD 82943 (left) and HD 169830 (right), superimposed to the best simultaneously-derived 2-Keplerian planetary solutions. Bottom: residuals as a function of Julian Date.
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In the text

$\begin{figure} \par\mbox{\psfig{width=7cm,file=mayorf2a.eps}\hspace{5.25mm} \ps... ...yorf2e.eps}\hspace{0.5mm} \psfig{width=7.6cm,file=mayorf2f.eps} }\end{figure}$	Figure 2: Phase-folded radial-velocity measurements obtained with CORALIE for HD 6434, HD 19994, HD 65216, HD 92788, HD 111232 and HD 114386, superimposed on the best Keplerian planetary solution (top panel in each diagram). The residuals as a function of Julian Date are displayed in the lower panels.
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$\begin{figure} \par\psfig{width=7.6cm,file=mayorf3a.eps}\hspace{1mm} \psfig{wid... ...le=mayorf3e.eps}\hspace{1mm} \psfig{width=7.6cm,file=mayorf3f.eps} \end{figure}$	Figure 3: Phase-folded radial-velocity measurements obtained with CORALIE for HD 121504, HD 142415, HD 147513, HD 196050, HD 216437 and HD 216437, superimposed on the best Keplerian planetary solution (top panel in each diagram). The residuals as a function of Julian Date are displayed in the lower panels.
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$\begin{figure} \par\includegraphics[width=7.5cm,clip]{mayorf4.eps} \end{figure}$	Figure 4: Phase-folded radial-velocity measurements obtained with CORALIE for HD 83443, superimposed to the best Keplerian planetary solution (top). The residuals as a function of Julian Date are displayed in the lower panel.
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$\begin{figure} \par\includegraphics[width=8.1cm,clip]{mayorf6a.eps}\hspace*{5mm} \includegraphics[width=8.1cm,clip]{mayorf6b.eps} \end{figure}$	Figure 6: Top: temporal radial-velocity measurements obtained with CORALIE for the 2-planet systems HD 82943 (left) and HD 169830 (right), superimposed to the best simultaneously-derived 2-Keplerian planetary solutions. Bottom: residuals as a function of Julian Date.
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