All Figures

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig1.eps}\end{figure}$ Figure 1: The ${\rm O{-}C}$ diagram for the times of minimum of V539 Ara. The continuous and dashed curves represent predictions for the primary and secondary eclipses. The individual primary and secondary minima are denoted by circles and triangles. Larger symbols correspond to the photoelectric or CCD measurements which were given higher weights in the calculations.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig2.eps}\end{figure}$ Figure 2: The $\rm O{-}C_2$ diagram for the times of minima of V539 Ara after subtraction of the apsidal motion. The sinusoidal curve represents a light-time effect for the third body circular orbit with a period of 42 years and an amplitude of about 0.02 days. The individual primary and secondary minima are denoted by circles and triangles, resp.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig3.eps} \end{figure}$ Figure 3: The ${\rm O{-}C}$ diagram for the times of minimum of GG Lup. See legend to Fig. 1.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig4.eps}\end{figure}$ Figure 4: The ${\rm O{-}C}$ diagram for the times of minima of V526 Sgr. See legend to Fig. 1.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig5.eps}\end{figure}$ Figure 5: The ${\rm O{-}C}$ diagram for the times of minimum of AO Vel. See legend to Fig. 1.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig6.eps}\end{figure}$ Figure 6: The LITE for AO Vel after subtraction of the apsidal motion. The curve represents the third body orbit with a period of 33 years and an eccentricity of e = 0.2. See legend to Fig. 2.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=6.8cm,clip]{1868fig7.eps}\end{figure}$ Figure 7: Comparison between observed and predicted average values of log k₂ using models of stellar evolution.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig1.eps}\end{figure}$	Figure 1: The ${\rm O{-}C}$ diagram for the times of minimum of V539 Ara. The continuous and dashed curves represent predictions for the primary and secondary eclipses. The individual primary and secondary minima are denoted by circles and triangles. Larger symbols correspond to the photoelectric or CCD measurements which were given higher weights in the calculations.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig2.eps}\end{figure}$	Figure 2: The $\rm O{-}C_2$ diagram for the times of minima of V539 Ara after subtraction of the apsidal motion. The sinusoidal curve represents a light-time effect for the third body circular orbit with a period of 42 years and an amplitude of about 0.02 days. The individual primary and secondary minima are denoted by circles and triangles, resp.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig3.eps} \end{figure}$	Figure 3: The ${\rm O{-}C}$ diagram for the times of minimum of GG Lup. See legend to Fig. 1.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig4.eps}\end{figure}$	Figure 4: The ${\rm O{-}C}$ diagram for the times of minima of V526 Sgr. See legend to Fig. 1.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig5.eps}\end{figure}$	Figure 5: The ${\rm O{-}C}$ diagram for the times of minimum of AO Vel. See legend to Fig. 1.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=8.8cm,clip]{1868fig6.eps}\end{figure}$	Figure 6: The LITE for AO Vel after subtraction of the apsidal motion. The curve represents the third body orbit with a period of 33 years and an eccentricity of e = 0.2. See legend to Fig. 2.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=6.8cm,clip]{1868fig7.eps}\end{figure}$	Figure 7: Comparison between observed and predicted average values of log k₂ using models of stellar evolution.
Open with DEXTER