\begin{table}%t2 \caption{\label{tbl:werte}Detected IPs with masses from XSPEC fit with the model from \cite{suleimanov05}. The temperature is from a bremsstrahlung fit, and is provided for comparison.} \par \small%\centerline { \begin{tabular}{lrlrclcr} \hline \hline %&&&&&&& \\[-8pt] Name & $kT$~~~~ & ~~~Mass & $F_{14-195}$~~~ & Distance$^A$ & $L_{14-195}$ & \mdot & $\chi^2_{\rm red}$ \\ & (keV)~~ & ~~~(\msun) & (10$^{-11}$ erg/cm$^2$/s) & ~~(pc) & (10$^{32}$ erg/s) & (10$^{16}$ g/s) & \\ \hline %&&&&&&& \\[-8pt] FO Aqr & 15.2 $\pm$ 1.6 & 0.61 $\pm$ 0.05 & 4.7 $\pm$ 0.5 & 400$^1$ & 9.00 &29.0 &1.4 \\ XY Ari & 29.1 $\pm$ 6.2 & 0.96 $\pm$ 0.12 & 2.3 $\pm$ 0.4 & 270$^2$ & 2.01 &2.8 &1.3 \\ V405 Aur& 22.1 $\pm$ 4.2 & 0.89 $\pm$ 0.13$^C$ & 2.2 $\pm$ 0.5 & -- & -- & &0.5 \\ MU Cam & 19.6 $\pm$ 4.7 & 0.74 $\pm$ 0.13 & 1.3 $\pm$ 0.3 & -- & -- & &1.7 \\ V709 Cas& 30.0 $\pm$ 2.5 & 0.96 $\pm$ 0.05$^C$ & 7.2 $\pm$ 0.6 & -- & -- & &1.0 \\ V1025 Cen&10.8 $\pm$ 7.7 & 0.46 $\pm$ 0.31 & 0.4 $\pm$ 0.3 & -- & -- & &0.6 \\ BG CMi &18.9 $\pm$ 5.5 & 0.67 $\pm$ 0.19 & 2.0 $\pm$ 0.4 & 700$^3$ & 11.73 &32.3 &0.7 \\ TV Col &21.6 $\pm$ 2.4 & 0.78 $\pm$ 0.06 & 5.0 $\pm$ 0.5 & 386$^4$ & 8.92 & 18.8&0.9 \\ TX Col &17.0 $\pm$ 3.2 & 0.67 $\pm$ 0.10 & 1.7 $\pm$ 0.3 & 550$^5$ & 6.15 & 16.9&0.7 \\ V2306 Cyg&20.5 $\pm$ 5.7 & 0.77 $\pm$ 0.16 & 1.2 $\pm$ 0.3 & -- & -- & &1.0 \\ DO Dra &12.0 $\pm$ 2.6 & 0.50 $\pm$ 0.11$^C$ & 1.0 $\pm$ 0.3 & 155$^6$ & 0.29 &1.3 &0.7 \\ PQ Gem &16.8 $\pm$ 2.8 & 0.65 $\pm$ 0.09 & 2.5 $\pm$ 0.4 & -- & -- & &1.0 \\ EX Hya &19.4 $\pm$ 4.4 & 0.66 $\pm$ 0.17 & 2.1 $\pm$ 0.5 & 64.5$^7$ & 0.10 & 0.28 & 0.4 \\ NY Lup &39.1 $\pm$ 4.3 & 1.09 $\pm$ 0.07 & 7.1 $\pm$ 0.6 & 690$^8$ & 40.45 & 25.3 &1.1 \\ V2400 Oph&21.1 $\pm$ 2.8 & 0.81 $\pm$ 0.10 & 4.3 $\pm$ 0.6 & -- & -- & &1.0 \\ GK Per &26.2 $\pm$ 5.4 & 0.90 $\pm$ 0.12$^{B,C}$$\!\!$& 2.8 $\pm$ 0.5 & 340$^9$ & 10.24 & 16.2 &0.8 \\ AO Psc &13.1 $\pm$ 1.9 & 0.55 $\pm$ 0.06 & 2.8 $\pm$ 0.4 & 420$^{10}$ & 10.13 &38.6 & 0.7 \\ V1223 Sgr&17.0 $\pm$ 1.3 & 0.65 $\pm$ 0.04 & 8.5 $\pm$ 0.8 & 527$^{11}$ & 28.25 & 82.0 &1.0 \\ V1062 Tau&18.3 $\pm$ 5.8 & 0.72 $\pm$ 0.17 & 1.6 $\pm$ 0.4 & 500$^{12}$ & 4.79 & 11.6 & 0.4 \\ RX J2133 &27.1 $\pm$ 2.9 & 0.91 $\pm$ 0.06 & 4.6 $\pm$ 0.4 & $>$600$^{13}$ & -- & &0.6 \\ Swift J0713&21.7 $\pm$ 4.1 & 0.79 $\pm$ 0.11 & 2.5 $\pm$ 0.4 & -- & -- & &0.9 \\ IGR J00234&$\rm 22.8^{+30.0}_{-11.5}$ & 0.85 $\pm$ 0.39 & 0.7 $\pm$ 0.3 & -- & -- & &0.8 \\ IGR J17303&37.1 $\pm$ 4.4 & 1.08 $\pm$ 0.07 & 6.6 $\pm$ 0.6 & -- & -- & &1.1 \\ \hline \end{tabular}} \medskip $^A$ References to the distances: 1. \cite{mchardy87}; 2. \cite{littlefair01}; 3. \cite{berriman87}; 4. \cite{mcarthur01}; 5. \cite{buckley89}; 6. \cite{mateo91}; 7. \cite{beuermann03}; 8. \cite{demartino06}; 9. \cite{warner87}; 10. \cite{hellier91}; 11.~\cite{beuermann04}; 12. \cite{szkody96}; 13 \cite{Bonnet-Bidaud06}. \\ $^B$ All numbers correspond to the measured spectrum during the low-flux period; but see Sect.~3.2. \\ $^C$ The derived mass is likely a lower limit due to the fast rotation of the WD; see Sect.~3.1. \end{table}