Astronomy & Astrophysics

All Figures

$\begin{figure} \par\includegraphics[width=8.3cm,clip]{3565f1.ps}\end{figure}$ Figure 1: Distribution of the rotational velocity of the stars in the HR diagram. Single and binary stars are identified with open and filled circles respectively. The size of the circles is proportional to the $v \sin i$ (in ${\rm km~s}^{-1}$ ). Luminosities have been derived from the Hipparcos parallaxes. Evolutionary tracks at [Fe/H] = 0 are shown for stellar masses between 1 and 4 $M_{\odot }$ . The turnoff and the beginning of the ascent on the red giant branch are indicated by the dashed and dotted lines respectively.
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In the text

$\begin{figure} \par\includegraphics[width=8.3cm,clip]{3565f2.ps}\end{figure}$ Figure 2: Distribution of Li abundances in the HR diagram. Same as Fig. 1 except that the symbol size is proportional to the Li abundances.
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In the text

$\begin{figure} \par\includegraphics[width=8.3cm,clip]{3565f3.ps}\end{figure}$ Figure 3: Lithium abundance as a function of rotational velocity for giant stars in the Hertzsprung gap. Single and binary stars are identified by open and filled circles respectively. Vertical arrows indicate $A_{\rm Li}$ upper limits.
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In the text

$\begin{figure} \par\includegraphics[width=8.5cm,clip]{3565f4.ps}\end{figure}$ Figure 4: The deepening (in mass) of the convective envelope as a function of the effective temperature for the stars in the present sample. Single and binary stars are represented by open and filled circles respectively. The symbol size is proportional to the Li abundances quoted in the figure.
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In the text

$\begin{figure} \par\includegraphics[width=8.3cm,clip]{3565f2.ps}\end{figure}$	Figure 2: Distribution of Li abundances in the HR diagram. Same as Fig. 1 except that the symbol size is proportional to the Li abundances.
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$\begin{figure} \par\includegraphics[width=8.3cm,clip]{3565f3.ps}\end{figure}$	Figure 3: Lithium abundance as a function of rotational velocity for giant stars in the Hertzsprung gap. Single and binary stars are identified by open and filled circles respectively. Vertical arrows indicate $A_{\rm Li}$ upper limits.
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$\begin{figure} \par\includegraphics[width=8.5cm,clip]{3565f4.ps}\end{figure}$	Figure 4: The deepening (in mass) of the convective envelope as a function of the effective temperature for the stars in the present sample. Single and binary stars are represented by open and filled circles respectively. The symbol size is proportional to the Li abundances quoted in the figure.
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