\begin{table}%t1
   \caption{Basic parameters of our sample of galaxies. Heliocentric redshifts 
           $z$ were taken from the NED, Seyfert types are according to\protect 
           \citet{veron00}. The absorption corrected hard X-ray luminosities 
           we compiled from the literature. Where multiple 
           observations were available the average was taken. In these cases 
           the reported uncertainties correspond to 1/2 of the peak-to-peak
           variabilities.  In the case of \object{PG 2130+099} only one measurement could be 
           found. Here we assume a variability of a factor of 2. The last 
           column contains the physical scales resolved by VISIR, computed for 
           an angular resolution of $0\farcs35$, which is a typical value for our 
           observations (see Table \ref{obs}). 
           }\label{sample}
   %\centerline
{
    \begin{tabular}{lcclc}
      \hline\hline
      Object & $z$ & Sy & log $L_{2{-}10 ~ \textrm{\tiny{keV}}}$ & 
      Scale [pc]\\
      \hline
      \object{Fairall 9} & 0.047 & 1.2 & 
      $43.84 \pm 0.15^{{\tiny{a,b,c}}}$ & 320 \\
      \object{NGC 526a} & 0.019 & 1.9 &
      $43.14 \pm 0.35^{{\tiny{a,c,k,l}}}$ & 135 \\
      \object{NGC 3783} & 0.010 & 1.5 & 
      $43.12 \pm 0.15^{{\tiny{a,c,d}}}$ & 70 \\
      \object{NGC 4579} & 0.005 & 1.9$^{*}$ &
      $41.18 \pm 0.22^{{\tiny{c,e,f,i}}}$ & 35 \\
      \object{NGC 4593} & 0.009 & 1.0 & 
      $42.89 \pm 0.15^{{\tiny{a,c,g,h}}}$ & 65 \\
      \object{PKS 2048-57} & 0.011 & 2.0 & 
      $43.07 \pm 0.15^{{\tiny{c,o}}}$ & 80 \\
      \object{PG 2130+099} & 0.062 & 1.5 & 
      $43.68 \pm 0.15^{{\tiny{c,n}}}$ & 415\\
      \object{NGC 7314} & 0.005 & 1.9 & 
      $42.19 \pm 0.15^{{\tiny{a,c,k,m}}}$ & 35 \\
      \hline
    \end{tabular}
  }\medskip
\par
  References are $^{{a}}$ \citet{turner89}, 
           $^{{b}}$ \citet{gondoin01}, $^{{c}}$~\citet{lutz04}, 
           $^{{d}}$ \citet{reeves04}, $^{{e}}$ \citet{terashima02},
           $^{{f}}$~\citet{ho01}, $^{{g}}$ \citet{reynolds04}, 
           $^{{h}}$ \citet{steenbrugge03}, 
           $^{{i}}$ \citet{cappi05}, $^{{k}}$ \citet{risaliti02},
           $^{{l}}$ \citet{landi01}, $^{{m}}$ \citet{kraemer04}, 
           $^{{n}}$ \citet{risaliti00}, $^{{o}}$ \citet{smith96}.\\
          $^*$ For a discussion of the classification of NGC 4579 see 
           Sect.~\ref{results}.
  \end{table}