\begin{table}%t1
\par
\caption{\label{tab1}Black hole mass and timing properties of the AGN in the \mbox{sample}.}
%\centerline
 {\begin{tabular}{ccccc}
\hline
\hline
Name & $M_{\rm BH}/10^6$ $M_{\odot}$ & Ref. & $\nu_{\rm br}/10^{-7}$~Hz & Ref. \\
\hline
Fairall 9    &  $255\pm 56$           	& P04 & $\rm 4.0^{+2.3}_{-0}$ 	& MA03\\
PG~0804+761  &  $693\pm 83$ 		& P04 & 9.6 			& PA03 \\	  
NGC~3227     &  $42\pm 21$  		& P04 & $\rm 200^{+250}_{-140}$ 	& UM05 \\	     
NGC~3516     &  $43\pm 15$  		& P04 & $\rm 20^{+30}_{-10}$	& MA03 \\ 
NGC~3783     &  $30\pm 5$   		& P04 & $\rm 40^{+37}_{-20}$	& MA03 \\	  
NGC~4051     &  1.9$\pm 0.8$ 		& P04 & $\rm 5050^{+1100}_{-3000}$ 	& M04 \\	  
NGC~4151     &  $13\pm 5$    		& P04 & $\rm 13^{+19}_{-4}$ 	& MA03 \\	  
Mrk~766      &  3.5          		& W02 & $\rm 6100^{+3500}_{-2500}$  & V03 \\	  
NGC~4258     &  $39\pm 1$    		& H99 & $\rm 0.2^{+23}_{-0}$ 	& MA05 \\	  
NGC~4395     &  $0.05\pm 0.05$ 		& V05 & $\rm 19\,300^{+9600}_{-15000}$& V05 \\      
MCG~-6-30-15 &  $4.5\pm 1.5$ 		& M05 & $\rm 770^{+1200}_{-310}$ 	& M05 \\  
NGC~5506     &  88	     		& PA04 & $\rm 130^{+830}_{-72}$ 	& UM05 \\ 	  
NGC~5548     &  $67\pm 3$    		& P04 & $\rm 6.3^{+19}_{-0}$ 	& MA03 \\	  
Ark~564      &  $2.6\pm 0.3$  		& B04 & $\rm 23\,000^{+5800}_{-6600}$ & PA02 \\	  
\hline 
\end{tabular}}
\par
\smallskip
Reference used for $M_{\rm BH}$: B04: Botte \etal\ (\cite{Botte04}); H99 -- 
Hernstein \etal\ (1999); M05 -- M$^{\rm c}$Hardy \etal\ (\cite{McHardy05}); PA04 --  Papadakis
(\cite{Papadakis04}); P04 -- Peterson \etal\ (\cite{Peterson04});  V05: 
Vaughan \etal\ (\cite{Vaughan05}); W02 -- Woo \& Urry
(\cite{Woo02}).  Reference used for $\nu_{\rm br}$: MA03 -- Markowitz \etal\ (\cite{Markowitz03});  M04 --
M$^{\rm c}$Hardy \etal\ (\cite{McHardy04}); PA02 --  Papadakis \etal\ (\cite{Papadakis02}); PA03 -- Papadakis et~al. \cite{Papadakis03};  V03 -- Vaughan \& Fabian (\cite{Vaughan03}).
\par
\end{table}