\begin{table}%t
%\centering
\par
\caption{\label{tbl:abundancetable}Summary of CO abundance profiles for IRAS~2A.}\vspace{-2mm}
\tiny \begin{tabular}{l c c c c c }
\hline \hline \noalign{\smallskip}
Profile      & $X_{\rm in}$ & $T_{\rm ev}$ & $X_{\rm D}$ & $n_{\rm de}$ & $X_{0}$ \\
&  & (K)          &                     & (cm$^{-3}$)   &              \\
\hline
Constant    & --  & -- & -- & -- &  $1.4 \times 10^{-7}$ \\
Anti-jump  & --  & -- & $3 \times 10^{-8}$ & $7 \times 10^4$ &  $5 \times 10^{-7}$ \\
Drop  &  $1.5 \times 10^{-7}$  & 25 & $\sim$$4 \times 10^{-8}$ & $7 \times 10^4$ & $5 \times 10^{-7}$   \\
\hline
\end{tabular}\vspace*{-4mm}
\end{table}