\begin{table}%t4
  \caption{\label{comp_L}Local far-IR luminosities in M~81.}
%\centerline
{\small
\par
  \begin{tabular}{cccc}   
  \hline \hline 
Parameter         &  Reg02\tablefootmark{*}    & Reg08\tablefootmark{**}     & Reg09\tablefootmark{**}       \\ \hline
RA (J2000.0)\tablefootmark{a} & 09~55~32.2& 09~55~35.1& 09~55~26.4  \\ 
Dec (J2000.0)\tablefootmark{a} & 69~03~59.0& 69~06~24.1& 69~08~08.9  \\ 
   Radius     & 64$\farcs$0 & 31$\farcs$9 &31$\farcs$6 \\
$L(8-1000)$\tablefootmark{b, 1}    & $(3.9\pm0.3)\times 10^8$ & $(8.7\pm0.3)\times 10^7$&  $(9.3\pm0.4)\times 10^7$ \\
$L_{\rm C}+L_{\rm W}$\tablefootmark{b}  & $(3.1\pm0.7)\times 10^8$ & $(8.1\pm0.3)\times 10^7$&  $(9.0\pm0.3)\times 10^7$ \\ \hline
  \end{tabular}}
\tablefoot{The local fields and their aperture radii refer to \cite{gon}. 
 \tablefoottext{a}{Units of right ascension are hours, minutes, and
 seconds, and units of declination are degrees, arcminutes, and arcseconds.} 
 \tablefoottext{b}{All luminosities are given in solar units.}
 \tablefoottext{*}{Location at the center of the galaxy.}
 \tablefoottext{**}{Location at the northern spiral arm (see Fig.~\ref{cw_dust}). }}\vspace{-2mm}
\tablebib{(1)~\citet{gon}.}
\end{table}