\begin{table}%t2
\caption{\label{tab2}Flux densities of M~82.}
%\centering
\par
\begin{tabular}{lrrrrrr}
\hline\hline \noalign{\smallskip}
Band & Center ($d\leq 1'$) & Center ($d\leq 2'$) & Center ($d\leq 4'$)\tablefootmark{a} & Total ($d\leq 8'$) & Total ($d\leq$ 12\farcm5) &Halo ($d\leq 4'$)\tablefootmark{a}\\
 & (Jy) & (Jy) & (Jy) & (Jy) & (Jy )& (Jy)\\
\hline\noalign{\smallskip}
IRC $S7$ 7 $\mu$m & 54.1 $\pm$ 1.2\tablefootmark{b} & 64.2 $\pm$ 1.5 & 72.7 $\pm$ 1.7 & 75.3 $\pm$ 1.7 &\dots & 0.045 $\pm$ 0.001 \\
IRC $S11$ 11 $\mu$m & 43.7 $\pm$ 1.0 & 53.8 $\pm$ 1.3 & 62.8 $\pm$ 1.5 & 65.5 $\pm$ 1.5 &\dots & 0.048 $\pm$ 0.001 \\
IRC $L15$ 15 $\mu$m & 112.0 $\pm$ 3.2 & 128.0 $\pm$ 3.6 & 137.0 $\pm$ 3.9 & 140.8 $\pm$ 4.0 &\dots & 0.091 $\pm$ 0.002 \\
IRC $L24$ 24 $\mu$m & 307 $\pm$ 14 & 342 $\pm$ 16 & 361 $\pm$ 17 & 365 $\pm$ 17 &\dots & 0.21 $\pm$ 0.01 \\
FIS $N60$ 65 $\mu$m &\dots & 630 $\pm$ 130 & 1530 $\pm$ 310 &1700 $\pm$ 340 & 1920 $\pm$ 380 & 16.4 $\pm$ 3.3 \\
FIS $WIDE$-$S$ 90 $\mu$m &\dots  & 529 $\pm$ 110 & 1550 $\pm$ 310 & 1840 $\pm$ 370 & 2040 $\pm$ 410 & 16.0 $\pm$ 3.2 \\
FIS $WIDE$-$L$ 140 $\mu$m &\dots & 520 $\pm$ 160 & 1580 $\pm$ 480 & 2000 $\pm$ 600 & 2250 $\pm$ 670 & 26.2 $\pm$ 7.9 \\
FIS $N160$ 160 $\mu$m &\dots & 360 $\pm$ 110 & 1270 $\pm$ 380 & 1580 $\pm$ 470 & 1940 $\pm$ 580 & 47 $\pm$ 14 \\
\hline
\end{tabular}
\tablefoot {\tablefoottext{a}{The sizes and positions of the aperture regions are indicated by the dashed circles in Figs.~\ref{fig2}a and~\ref{fig3}d.} \\
\tablefoottext{b}{The flux density errors include both systematic effects associated with the detectors and absolute calibration uncertainties (\citealt{Lor07}; \citealt{Ver07}).}}
\end{table}