Astronomy & Astrophysics

$\begin{figure} \par\includegraphics[angle=-90,width=15.5cm,clip]{2788fig1.ps} \end{figure}$ Figure 1: Survey area. Squares = Schmidt plates (Black = POSS plates, Blue = SERC-J), Strips = meridian fields. Dots are the PMS stars from our catalogue.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=6.4cm,clip]{2788fig4.ps} \end{figure}$ Figure 4: Distribution of the differences in proper motion between HIPPARCOS and our proper motions. Solid line corresponds to $\Delta \mu_{ \alpha} \cos(\delta)$ and dashed line corresponds to $\Delta \mu _{ \delta }$ .
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=6.5cm,clip]{2788fig5.ps} \end{figure}$ Figure 5: Distribution of the differences in proper motion between Tycho-2 and our proper motions. Solid line corresponds to $\Delta \mu_{ \alpha} \cos(\delta)$ and dashed line corresponds to $\Delta \mu _{ \delta }$ .
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=6.8cm,clip]{2788fig6.ps} \end{figure}$ Figure 6: Distribution of the differences in proper motion between UCAC2 and our proper motions. Solid line corresponds to $\Delta \mu_{ \alpha} \cos(\delta)$ and dashed line corresponds to $\Delta \mu _{ \delta }$ .
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8cm,clip]{2788fig7.ps} \end{figure}$ Figure 7: Distribution of the differences in proper motion in right ascension between the catalogues HIPPARCOS, Tycho-2 and UCAC2 and our catalogue as a function of the 2 MASS $K_{\rm s}$ magnitude.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=8cm,clip]{2788fig8.ps} \end{figure}$ Figure 8: Distribution of the differences in proper motion in declination between the catalogues HIPPARCOS, Tycho-2 and UCAC2 and our catalogue as a function of the 2 MASS K magnitude.
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In the text

$\begin{figure} \par\includegraphics[angle=-90,width=15.5cm,clip]{2788fig1.ps} \end{figure}$	Figure 1: Survey area. Squares = Schmidt plates (Black = POSS plates, Blue = SERC-J), Strips = meridian fields. Dots are the PMS stars from our catalogue.
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$\begin{figure} \par\includegraphics[angle=-90,width=6.6cm,clip]{2788fig2.ps} \end{figure}$	Figure 2: Distribution of time base for proper motion calculation.
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$\begin{figure} \par\includegraphics[angle=-90,width=6.5cm,clip]{2788fig3.ps} \end{figure}$	Figure 3: Number of points used for the proper motion determinations.
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$\begin{figure} \par\includegraphics[angle=-90,width=6.4cm,clip]{2788fig4.ps} \end{figure}$	Figure 4: Distribution of the differences in proper motion between HIPPARCOS and our proper motions. Solid line corresponds to $\Delta \mu_{ \alpha} \cos(\delta)$ and dashed line corresponds to $\Delta \mu _{ \delta }$ .
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$\begin{figure} \par\includegraphics[angle=-90,width=6.5cm,clip]{2788fig5.ps} \end{figure}$	Figure 5: Distribution of the differences in proper motion between Tycho-2 and our proper motions. Solid line corresponds to $\Delta \mu_{ \alpha} \cos(\delta)$ and dashed line corresponds to $\Delta \mu _{ \delta }$ .
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$\begin{figure} \par\includegraphics[angle=-90,width=6.8cm,clip]{2788fig6.ps} \end{figure}$	Figure 6: Distribution of the differences in proper motion between UCAC2 and our proper motions. Solid line corresponds to $\Delta \mu_{ \alpha} \cos(\delta)$ and dashed line corresponds to $\Delta \mu _{ \delta }$ .
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$\begin{figure} \par\includegraphics[angle=-90,width=8cm,clip]{2788fig7.ps} \end{figure}$	Figure 7: Distribution of the differences in proper motion in right ascension between the catalogues HIPPARCOS, Tycho-2 and UCAC2 and our catalogue as a function of the 2 MASS $K_{\rm s}$ magnitude.
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$\begin{figure} \par\includegraphics[angle=-90,width=8cm,clip]{2788fig8.ps} \end{figure}$	Figure 8: Distribution of the differences in proper motion in declination between the catalogues HIPPARCOS, Tycho-2 and UCAC2 and our catalogue as a function of the 2 MASS K magnitude.
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$\begin{figure} \par\includegraphics[angle=-90,width=6.5cm,clip]{2788fig9.ps} \end{figure}$	Figure 9: Distribution of the 2 MASS $K_{\rm s}$ magnitude of our catalogue (available for 99% of the stars).
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$\begin{figure} \par\includegraphics[width=14cm,clip]{2788fig10.eps} \end{figure}$	Figure 10: PMS stars distribution in the sky over CO map (Dame et al. 2001).
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