$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f1.eps}\end{figure}$ Figure 1: Radial velocity measurements of HD 160691. White circles correspond to the night average. The dotted curve correspond to the orbital fit of the low-mass-planetary companion confirmed through additional measurements by Santos et al. (2004).
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f2.eps}\end{figure}$ Figure 2: Radial velocity time series of individual nights displayed from bottom to top to a relative scale. The box on the fourth night is expanded in Fig. 3.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f3.eps}\end{figure}$ Figure 3: Zoom of radial velocity measurements showing the presence of p-modes in the time series with periods of around 8 min. The semi-amplitude of about 2 m s^-1 does not represent the individual amplitude of p-modes but comes from the interference of several modes.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f4.eps}\end{figure}$ Figure 4: Typical Cross Correlation Function of HD 160691 with location of the intervals used to compute the bisector velocity span $V_{\rm t}-V_{\rm b}$ .
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f5.eps}\end{figure}$ Figure 5: Bisector velocity span of the CCF profile of HD 160691. White circles correspond to the night average.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f9.eps}\end{figure}$ Figure 9: Power spectrum of HD 160691 with the identified frequencies in Table 2 marked by dotted lines.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f10.eps}\end{figure}$ Figure 10: Identified p-modes l = 0 ( $\square$ ), l = 1 ( $\blacksquare$ ), l = 2 ( $\blacktriangle$ ), and l = 3 ( $\triangle$ ) in echelle diagram format. The size of the symbols are proportional to the amplitude of the modes. Crosses correspond to peaks not identified in the power spectrum.
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f11.eps}\end{figure}$ Figure 11: Large spacing $\Delta \nu$ versus frequency for p-modes of degree l = 0 ( $\square$ ), l = 1 ( $\blacksquare$ ), l = 2 ( $\blacktriangle$ ) and l = 3 ( $\triangle$ ).
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f12.eps}\end{figure}$ Figure 12: ( Top panel) Small spacings $\delta \nu _{0,2}$ ( $\bullet$ ) and $\delta \nu _{1,3}$ ( $\circ$ ) versus frequencies. ( Bottom panel) Splitting of modes l = 2, m = $\pm$ 2 ( $\blacktriangle$ ).
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In the text

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f1.eps}\end{figure}$	Figure 1: Radial velocity measurements of HD 160691. White circles correspond to the night average. The dotted curve correspond to the orbital fit of the low-mass-planetary companion confirmed through additional measurements by Santos et al. (2004).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f2.eps}\end{figure}$	Figure 2: Radial velocity time series of individual nights displayed from bottom to top to a relative scale. The box on the fourth night is expanded in Fig. 3.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f3.eps}\end{figure}$	Figure 3: Zoom of radial velocity measurements showing the presence of p-modes in the time series with periods of around 8 min. The semi-amplitude of about 2 m s^-1 does not represent the individual amplitude of p-modes but comes from the interference of several modes.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f4.eps}\end{figure}$	Figure 4: Typical Cross Correlation Function of HD 160691 with location of the intervals used to compute the bisector velocity span $V_{\rm t}-V_{\rm b}$ .
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f5.eps}\end{figure}$	Figure 5: Bisector velocity span of the CCF profile of HD 160691. White circles correspond to the night average.
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f6.eps}\end{figure}$	Figure 6: CaII H and K lines for HD 160691 showing no chromospheric activity.
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f7.eps}\end{figure}$	Figure 7: Power spectrum of radial velocity measurements of HD 160691.
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f8.eps}\end{figure}$	Figure 8: Sum of the echelle diagram showing the modes l = 0, 1, 2, 3 and their side-lobes.
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f9.eps}\end{figure}$	Figure 9: Power spectrum of HD 160691 with the identified frequencies in Table 2 marked by dotted lines.
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f10.eps}\end{figure}$	Figure 10: Identified p-modes l = 0 ( $\square$ ), l = 1 ( $\blacksquare$ ), l = 2 ( $\blacktriangle$ ), and l = 3 ( $\triangle$ ) in echelle diagram format. The size of the symbols are proportional to the amplitude of the modes. Crosses correspond to peaks not identified in the power spectrum.
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f11.eps}\end{figure}$	Figure 11: Large spacing $\Delta \nu$ versus frequency for p-modes of degree l = 0 ( $\square$ ), l = 1 ( $\blacksquare$ ), l = 2 ( $\blacktriangle$ ) and l = 3 ( $\triangle$ ).
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$\begin{figure} \par\includegraphics[width=7.9cm,clip]{2697f12.eps}\end{figure}$	Figure 12: ( Top panel) Small spacings $\delta \nu _{0,2}$ ( $\bullet$ ) and $\delta \nu _{1,3}$ ( $\circ$ ) versus frequencies. ( Bottom panel) Splitting of modes l = 2, m = $\pm$ 2 ( $\blacktriangle$ ).
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