\begin{table}%t4
\caption{\label{tbl:vgl}Comparison of our mass estimates with those from previous X-ray observations}
\small%\centerline
 {
 \begin{tabular}{llllllll}
 \hline 
 \hline
%&&&&&&&& \\[-8pt]
   \textbf{Name}  & \textbf{BAT$^1$} & \textbf{RXTE$^2$} &  \textbf{RXTE$^3$} & \textbf{GINGA$^4$} & \textbf{ASCA$^5$} & \textbf{Other methods$^6$} & \textbf{References$^7$} \\
                   & $M_{\odot }$ & $M_{\odot }$ & $M_{\odot }$ & $M_{\odot }$ & $M_{\odot}$ & $M_{\odot}$ &     \\
 \hline 
 FO Aqr           & 0.61 $\pm$ 0.05 & 0.60 $\pm$ 0.05 & 0.88 & 0.92 & 1.05 &               &            \\
 XY Ari                 & 0.96 $\pm$ 0.12 &               & 0.97 &      &      & 1.04 $\pm$ 0.13 & [1] \\
 V405 Aur         & 0.89 $\pm$ 0.13 & 0.90 $\pm$ 0.10 & 1.10 &      & $>$0.54&               &            \\
 V709 Cas         & 0.96 $\pm$ 0.05 & 0.90 $\pm$ 0.10 & 1.08 &      &      &               &            \\
 V1025 Cen            & 0.46 $\pm$ 0.31 &               & 0.60 &      &      &               &            \\  
 BG CMi                                   & 0.67 $\pm$ 0.19 & 0.85 $\pm$ 0.12 & 1.20 & 1.09 &      & 0.8 $\pm$ 0.2   & [2] \\    
 TV Col                 & 0.78 $\pm$ 0.06 & 0.84 $\pm$ 0.06 & 0.96 & 1.30 & 0.51 & 0.75 $\pm$ 0.15 & [3] \\
 TX Col           & 0.67 $\pm$ 0.10 & 0.70 $\pm$ 0.30 & 0.73 & 0.48 & 0.66 &               &            \\
 DO Dra           & 0.50 $\pm$ 0.11 & 0.75 $\pm$ 0.05 &      &      &      & 0.83 $\pm$ 0.10 & [4] \\
 PQ Gem           & 0.65 $\pm$ 0.09 & 0.65 $\pm$ 0.20 &      & 1.29 &      &               &            \\
 EX Hya           & 0.66 $\pm$ 0.13 & 0.50 $\pm$ 0.05 & 0.45 & 0.46 & 0.48 & 0.49 $\pm$ 0.13 & [5] \\
 NY Lup                 & 1.09 $\pm$ 0.07 &               &      &      &      & $>$0.5          & [6] \\
 V2400 Oph        & 0.81 $\pm$ 0.10 & 0.59 $\pm$ 0.05 & 0.71 &      & 0.68 &               &            \\
 GK Per                 & 0.90 $\pm$ 0.12 & 0.59 $\pm$ 0.05 &      &      & 0.52 & 0.9 $\pm$ 0.2, $>$0.87 & [7], [8] \\
 AO Psc           & 0.55 $\pm$ 0.06 & 0.65 $\pm$ 0.05 & 0.60 & 0.56 & 0.40 &               &            \\
 V1223 Sgr            & 0.65 $\pm$ 0.04 & 0.95 $\pm$ 0.05 & 1.10 &      & 1.28 & 0.4-0.6         & [2]   \\
 V1062 Tau            & 0.72 $\pm$ 0.17 & 1.00 $\pm$ 0.20 & 0.90 &      &      &               &            \\
 \hline 
\end{tabular}}
\medskip
References: 1: this work, BAT; 2: \cite{suleimanov05}; 3: \cite{ramsay00}; 4: \cite{cropper99}; 5: Ezucka, Ishida (1999);  6: Other methods of determination of mass and the last column are the references of them. 7: References: [1] \cite{hellier97}; [2] \cite{penning85}; [3] \cite{hellier93};
[4] \cite{haswell97}; [5] \cite{hoogerwerf04}; [6] \cite{demartino06}; [7] \cite{crampton86};
[8] \cite{morales02}.
\end{table}