\begin{table}%t1
\caption{Atomic data for the isotopic components of \ion{Ca}{ii}~$\lambda~8498$. The fractional isotope abundances~$\epsilon$ correspond to solar-system matter.}\label{iso8498}
%\centering
\small
\begin{tabular}{ccc}
\hline \hline
 & & \\[-8pt]
 \ $\lambda,\AA$ & isotope  & $\log gf\epsilon$ \\
 \hline
  8498.023 & 40 &  $-$1.43   \\
  8498.079 & 42 &  $-$3.60   \\
  8498.106 & 43 &  $-$4.29   \\
  8498.131 & 44 &  $-$3.10   \\
  8498.179 & 46 &  $-$5.81   \\
  8498.223 & 48 &  $-$4.14   \\
\hline
\end{tabular}
\end{table}