\begin{table}%t1
\caption{\label{PAH_width} The peak position and the width of the Lorentzian profiles
used to fit the PAH features.}
%\centering
\par
\begin{tabular}{ccc}
\hline \hline
PAH feature (\um) & Peak position (cm$^{-1}$) &  {\it FWHM}  (cm$^{-1}$)    \\
\hline
6.2         & 1596.9                   & 70  \\
7.7         & 1295.8                   & 113 \\
8.6         & 1176.5                   & 40  \\
11.3       & 877.5                     & 25  \\
12.7       & 781.2--800                & 40  \\
\hline
\end{tabular}
\end{table}