\begin{table}%t5
\caption{\label{tab5}$M_1$, the estimated pre-1967-outburst accretion rate $\dot{M}_{\rm pre-OB}$ (for $L_{\rm disk}$~= 140~$L_{\odot}$), the theoretical ignition mass~$M_{\rm ign}$, the accreted mass $M_{\rm accr}$~= 22~$\cdot$  $\dot{M}_{\rm pre-OB}$ and the expected recurrence time $\tau$~= $M_{\rm ign}$/$\dot{M}_{\rm pre-OB}$.}
%\centering
\small
\begin{tabular}{ccccr}
\hline \hline
$M_1$  & $\dot{M}_{\rm pre-OB}$  & $M_{\rm ign}$   & $M_{\rm accr}$ & $\tau$ \\                      ($M_{\odot}$)   & (10$^{-8}$ $M_{\odot}$ yr$^{-1}$)& (10$^{-7}$ $M_{\odot}$)& 
(10$^{-7}$ $M_{\odot}$)    & (yrs) \\ 
\hline
1.00  &    7.32  &   77.2 & 16.10    &105.5     \\
1.05  &    6.56  &   67.6 & 14.43    &103.0    \\
1.10  &    5.84  &   56.2 & 12.84   &96.2     \\
1.15  &    5.12  &   45.7 & 11.26   &89.2     \\
1.20  &    4.40  &   36.3 & 9.68   &82.5    \\
1.25  &    3.72  &   25.7 & 8.18    &69.1     \\
1.30  &    3.02  &   16.2 & 6.64    &53.6    \\
1.33  &    2.62  &   11.0 & 5.76   &42.0    \\
1.35  &    2.34  &   7.69 & 5.15    &32.8     \\
1.36  &    2.22  &   6.14 & 4.88     &27.7     \\ 
1.37  &    2.08  &   4.73 & 4.58    & 22.7      \\  
1.38  &    1.94  &   3.44 & 4.27    &17.7     \\
1.39  &    1.80  &   2.29 & 3.96    &12.7   \\ 
1.40  &    1.68  &   1.33 & 3.69    &7.9   \\   
\hline
\end{tabular}
\end{table}