\begin{table}%t5
%\centering
\par
\caption{\label{tabchi}Fitting coefficients for Eq.~(\ref{zetachi}) for  
CR protons (p, also including heavy nuclei) and electrons (e).}
\begin{tabular}{llll}
\hline\hline
$k$ & spectrum   & $\zeta_{0,k}$        & $\Sigma_{0,k}$  \\
    &                & (s$^{-1}$)           & (g~cm$^{-2}$)   \\
\hline\noalign{\smallskip}
 p  & W98          & $3.4\times 10^{-18}$ & 44	\\
 p  & M02          & $5.4\times 10^{-18}$ & 38	\\
\hline\noalign{\smallskip}
 e    & C00	 & $3.3\times 10^{-20}$ & 71	  \\
 e    & E00	 & $4.9\times 10^{-18}$ & 35	  \\
\hline
\end{tabular}
\end{table}