All Figures

$\begin{figure*} \par\mbox{\includegraphics[width=8cm,clip]{aa6129f1a.eps}\includegraphics[width=8.35cm,clip]{aa6129f1b.eps} } \end{figure*}$ Figure 1: Evolution in the surface abundance-mass plane for a binary with initial conditions $M_{1}=7~{M_{\odot}},\; M_{2}=5~{M_{\odot}},\; P=40~{\rm days},\; Z=0.02$ , the primary is black, the secondary is grey. Z marks the zero-age main sequence, while the numbers show mass-transfer by RLOF at 1, 3 and 4 and common envelope evolution at 2 and 5. The arrows show the direction of mass-transfer. A detailed description of the evolution is given in the text.
Open with DEXTER

In the text

$\begin{figure*} \par\mbox{\includegraphics[width=7.7cm,clip]{aa6129f2a.eps}\includegraphics[width=8.2cm,clip]{aa6129f2b.eps} } \end{figure*}$ Figure 2: Evolution in the surface abundance-mass plane for a binary with initial conditions $M_{1}=3~{M_{\odot}},\; M_{2}=1~{M_{\odot}},\; P=3700~{\rm days},\; Z=10^{-4}$ . Symbols are as in Fig. 1, with RLOF at point 1. The secondary accretes enough $^{12}{\rm C}$ -rich material to become an extrinsic carbon star, with a very high $^{12}{\rm C}/^{13}{\rm C}$ ratio.
Open with DEXTER

In the text

$\begin{figure*} \par\mbox{\includegraphics[width=7.8cm,clip]{aa6129f3a.eps}\hspace*{2mm} \includegraphics[width=8.1cm,clip]{aa6129f3b.eps} } \end{figure*}$ Figure 3: Evolution in the surface abundance-mass plane for a binary with initial conditions $M_{1}=6~{M_{\odot}},\; M_{2}=5~{M_{\odot}},\; P=5000~{\rm days},\; Z=10^{-4}$ . Symbols are as in Fig. 1, with a common envelope phase at point 1. Due to the high mass of the primary, hydrogen-burning products (notably $^{13}{\rm C}$ and $^{14}{\rm N}$ ) are transferred to the secondary.
Open with DEXTER

In the text

$\begin{figure*} \par\mbox{\includegraphics[width=7.8cm,clip]{aa6129f4a.eps}\hspace*{2mm} \includegraphics[width=8.1cm,clip]{aa6129f4b.eps} } \end{figure*}$ Figure 4: Evolution in the abundance-mass plane for a binary with initial conditions $M_{1}=40~{M_{\odot}},\; M_{2}=20~{M_{\odot}},\; P=2000~{\rm days},\; Z=0.03$ . Symbols are as in Fig. 1, with RLOF at point 1.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=14cm,clip]{6129figD1}\end{figure}$ Figure D.1: Comparison of surface abundances (log mass fraction) vs. time (in units of $10^{5}~{\rm years}$ ) for $^{12}{\rm C}$ to $^{20}{\rm Ne}$ for our synthetic models (solid lines) and the Monash detailed models (dashed lines) with Z=0.004, 0.008and 0.02. The three columns represent M=4, 5 and $6~{M_{\odot}}$ respectively from left to right.

In the text

$\begin{figure} \par\includegraphics[width=14cm,clip]{6129figD2}\end{figure}$ Figure D.2: As Fig. D.1 for $^{21}{\rm Ne}$ to $^{26}{\rm Mg}$ .

In the text

$\begin{figure} \par\includegraphics[width=14cm,clip]{6129figD3}\end{figure}$ Figure D.3: As Fig. D.1 for $^{26}{\rm Al}$ and $^{27}{\rm Al}$ .

In the text

$\begin{figure} \par\mbox{\includegraphics[width=7.7cm,clip]{aa6129f2a.eps}\includegraphics[width=8.2cm,clip]{aa6129f2b.eps} } \end{figure}$	Figure 2: Evolution in the surface abundance-mass plane for a binary with initial conditions $M_{1}=3~{M_{\odot}},\; M_{2}=1~{M_{\odot}},\; P=3700~{\rm days},\; Z=10^{-4}$ . Symbols are as in Fig. 1, with RLOF at point 1. The secondary accretes enough $^{12}{\rm C}$ -rich material to become an extrinsic carbon star, with a very high $^{12}{\rm C}/^{13}{\rm C}$ ratio.
Open with DEXTER

$\begin{figure} \par\mbox{\includegraphics[width=7.8cm,clip]{aa6129f3a.eps}\hspace{2mm} \includegraphics[width=8.1cm,clip]{aa6129f3b.eps} } \end{figure*}$	Figure 3: Evolution in the surface abundance-mass plane for a binary with initial conditions $M_{1}=6~{M_{\odot}},\; M_{2}=5~{M_{\odot}},\; P=5000~{\rm days},\; Z=10^{-4}$ . Symbols are as in Fig. 1, with a common envelope phase at point 1. Due to the high mass of the primary, hydrogen-burning products (notably $^{13}{\rm C}$ and $^{14}{\rm N}$ ) are transferred to the secondary.
Open with DEXTER

$\begin{figure} \par\mbox{\includegraphics[width=7.8cm,clip]{aa6129f4a.eps}\hspace{2mm} \includegraphics[width=8.1cm,clip]{aa6129f4b.eps} } \end{figure*}$	Figure 4: Evolution in the abundance-mass plane for a binary with initial conditions $M_{1}=40~{M_{\odot}},\; M_{2}=20~{M_{\odot}},\; P=2000~{\rm days},\; Z=0.03$ . Symbols are as in Fig. 1, with RLOF at point 1.
Open with DEXTER