\begin{table}%tC.38
\par
\caption{Like Table~\ref{naphthalene} for the quaterrylene cation
(C$_{40}$H$_{20}^+$).}
\label{quaterrylene+}
%\begin{center}
\par
\begin{tabular}{cccc}
\hline \hline \noalign{\smallskip} 
& \multicolumn{3}{c}{Integrated flux} \\
\noalign{\smallskip} \cline{2-4} \noalign{\smallskip}
 &  & Red & IRAS\\
Peak & ISRF & Rectangle & 21282+5050\\
($\mu$m) & (W$~~$sr$^{-1}$) (\%) & (W$~~$sr$^{-1}$) (\%)& (W$~~$sr$^{-1}$) (\%)\\ 
\hline \noalign{\smallskip}
$\perp$ 15.20 & $5.1\times 10^{-28}$ (0.82) & $2.6\times 10^{-26}$ (0.86) & $4.3\times 10^{-24}$ (0.28) \\
$\parallel$ 17.54 & $1.7\times 10^{-28}$ (0.27) & $8.4\times 10^{-27}$ (0.29) & $1.1\times 10^{-24}$ (0.07) \\
$\perp$ 17.87 & $1.5\times 10^{-28}$ (0.24) & $7.7\times 10^{-27}$ (0.26) & $9.8\times 10^{-25}$ (0.06) \\
$\parallel$ 18.53 & $1.8\times 10^{-28}$ (0.29) & $9.8\times 10^{-27}$ (0.33) & $1.2\times 10^{-24}$ (0.08) \\
$\parallel$ 19.07 & $1.5\times 10^{-27}$ (2.35) & $7.8\times 10^{-26}$ (2.63) & $9.2\times 10^{-24}$ (0.60) \\
$\perp$ 21.73 & $1.0\times 10^{-28}$ (0.16) & $5.6\times 10^{-27}$ (0.19) & $5.9\times 10^{-25}$ (0.04) \\
$\parallel$ 22.98 & $1.6\times 10^{-27}$ (2.58) & $8.5\times 10^{-26}$ (2.88) & $8.1\times 10^{-24}$ (0.53) \\
$\parallel$ 23.92 & $4.8\times 10^{-28}$ (0.77) & $2.6\times 10^{-26}$ (0.89) & $2.5\times 10^{-24}$ (0.16) \\
$\parallel$ 28.76 & $7.1\times 10^{-28}$ (1.13) & $3.7\times 10^{-26}$ (1.26) & $2.8\times 10^{-24}$ (0.18) \\
$\perp$ 32.83 & $1.8\times 10^{-28}$ (0.30) & $1.1\times 10^{-26}$ (0.36) & $6.9\times 10^{-25}$ (0.04) \\
$\parallel$ 33.58 & $3.2\times 10^{-28}$ (0.52) & $1.7\times 10^{-26}$ (0.59) & $1.1\times 10^{-24}$ (0.07) \\
$\perp$ 58.08 & $1.2\times 10^{-27}$ (1.90) & $6.4\times 10^{-26}$ (2.16) & $2.8\times 10^{-24}$ (0.19) \\
$[81.78]$ & $3.7\times 10^{-29}$ (0.06) & -- & -- \\
$\perp$ 86.12 & $9.7\times 10^{-29}$ (0.15) & $4.7\times 10^{-27}$ (0.16) & $8.6\times 10^{-26}$ (0.01) \\
$\parallel$ 91.10 & $3.0\times 10^{-28}$ (0.48) & $1.6\times 10^{-26}$ (0.53) & $5.0\times 10^{-25}$ (0.03) \\
$[175.98]$ & $5.5\times 10^{-29}$ (0.09) & -- & -- \\
$[184.99]$ & $5.2\times 10^{-29}$ (0.08) & -- & -- \\
$[244.91]$ & $4.5\times 10^{-29}$ (0.07) & -- & -- \\
$\perp$ 456.34 & $1.6\times 10^{-28}$ (0.25) & $1.4\times 10^{-27}$ (0.05) & -- \\
\hline 
\end{tabular}
%\end{center}
\par
\end{table}