\begin{table}%t1
%\centering
\par
\caption{\label{SED.tab}Integrated fluxes for M~87 in the infrared-submm wavelength region
  between 15 and 1000~$\mu$m.}
\begin{tabular}{ccll}
  \hline\hline 
  Instrument & $\lambda$ ($\mu$m) & $F_\lambda$ (Jy) & Source \\
 \hline 
  ISOCAM & 15 & $0.106 \pm 0.021$ & \citet{2004A+A...416...41X} \\
  MIPS & 24 & $0.171 \pm 0.013$ & \citet{2007ApJ...655..781S} \\
  IRAS & 25 & $0.187 \pm 0.028$ & \citet{1988AJ.....95...26G} \\
  IRAS & 60 & $0.546 \pm 0.082$ & \citet{1988AJ.....95...26G} \\
  MIPS & 70 & $0.455 \pm 0.009$ & \citet{2007ApJ...655..781S} \\
  IRAS & 100 & $0.559 \pm 0.084$ & \citet{1988AJ.....95...26G} \\
  PACS & 100 & $0.517 \pm 0.129$\tablefootmark{a} & this paper \\
  MIPS & 160 & $0.582 \pm 0.010$ & \citet{2007ApJ...655..781S} \\
  PACS & 160 & $0.673 \pm 0.168$\tablefootmark{a} & this paper  \\
  SPIRE & 250 & $0.860 \pm 0.215$\tablefootmark{a} & this paper \\
  SPIRE & 350 & $1.070 \pm 0.267$\tablefootmark{a} & this paper \\
  SCUBA & 450 & $1.320 \pm 0.396$ & \citet{2004A+A...424..531H} \\
  SPIRE & 500 & $1.430 \pm 0.375$\tablefootmark{a} & this paper \\
  SCUBA & 850 & $2.480 \pm 0.496$ & \citet{2004A+A...424..531H} \\ 
 \hline
\end{tabular}%\vspace*{-3mm}
\tablefoot {\tablefoottext{a}{We assume a conservative uncertainty in
  the PACS and SPIRE flux densities of 25\%, which includes the 15\%
  uncertainty in the absolute flux calibration \citep{PACS, Swinyard},
  uncertainties introduced by the map-making techniques, and the
  possible contamination of background objects. Colour corrections
  were applied, but they turned out to be very small (1.8\% for the
  PACS~100 band and smaller than 1\% for the remaining bands).} } 
\end{table}