All Figures

$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f1.eps} \end{figure}$ Figure 1: A segment of the echelle spectrum of Procyon obtained by SARG. Top panel: iodine absorption lines are superimposed to the Procyon lines. Bottom panel: the Procyon spectrum without iodine absorption features. This spectrum has been used as the template spectrum in the determination of radial velocity from star plus iodine spectra.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f2.eps} \end{figure}$ Figure 2: Radial velocities of Procyon obtained on 2001/01/06. The data are affected by an internal error of $1.48~\rm m~s^{-1}$ and an rms of $3.5~\rm m~s^{-1}$ . The 21-min pulsation is also reported.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f3.eps} \end{figure}$ Figure 3: The Scargle-Lomb periodogram of the data. An excess of power around 1 mHz is evident. The horizontal solid lines show the confidence levels corresponding to the probability of detecting a peak due to a genuine signal equal to 90% and 99%. The inset shows the power spectrum of the window function for a sine wave signal of amplitude 1 m s^-1, sampled as the observations. The power unit are the same as the main figure.
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f4.eps} \end{figure}$ Figure 4: Comparison between modified comb responses for the two central frequencies $738~{\rm\mu Hz}$ and $1321~{\rm\mu Hz}$ of the power spectrum of Procyon A data. The responses are scaled to the maximum peak obtained for the frequency $\nu_0 = 1321~{\rm \mu Hz}$ at $\Delta\nu_0 = 47.8~{\rm \mu Hz}$ .
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f5.eps} \end{figure}$ Figure 5: The first-order spacings over several frequency ranges, as determined from comb analysis. The line shows the mean value of $56~{\rm \mu Hz}$ .
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In the text

$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f1.eps} \end{figure}$	Figure 1: A segment of the echelle spectrum of Procyon obtained by SARG. Top panel: iodine absorption lines are superimposed to the Procyon lines. Bottom panel: the Procyon spectrum without iodine absorption features. This spectrum has been used as the template spectrum in the determination of radial velocity from star plus iodine spectra.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f2.eps} \end{figure}$	Figure 2: Radial velocities of Procyon obtained on 2001/01/06. The data are affected by an internal error of $1.48~\rm m~s^{-1}$ and an rms of $3.5~\rm m~s^{-1}$ . The 21-min pulsation is also reported.
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$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f4.eps} \end{figure}$	Figure 4: Comparison between modified comb responses for the two central frequencies $738~{\rm\mu Hz}$ and $1321~{\rm\mu Hz}$ of the power spectrum of Procyon A data. The responses are scaled to the maximum peak obtained for the frequency $\nu_0 = 1321~{\rm \mu Hz}$ at $\Delta\nu_0 = 47.8~{\rm \mu Hz}$ .
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$\begin{figure} \par\includegraphics[width=8cm,clip]{gj012_f5.eps} \end{figure}$	Figure 5: The first-order spacings over several frequency ranges, as determined from comb analysis. The line shows the mean value of $56~{\rm \mu Hz}$ .
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