\begin{table}%t3
%\centering
\par
 \caption{Predicted flux in various frequency ranges for a neutralino $b {\bar b}$ model
 with $M_{\chi}=40$ GeV and $\langle \sigma v \rangle = 10^{-26}$ cm$^3$/s. The value of the magnetic field is $B_{\mu}=1.2 ~ \mu$G.  $E_{particle}$  refers to the approximate energy for $e^\pm$ or $\gamma$ sourcing the corresponding flux in the monochromatic limit.
 \label{tab.multif}}
\begin{tabular}{ccccc}
  \hline\hline
                  & $\nu$     & $\nu F(\nu)$           & $E_{\rm particle}$          &  Mechanism    \\
                  & [GHz]     & [$\rm erg ~s^{-1} ~cm^{-2}$] & [GeV]                   &               \\
  \hline
  \noalign{\smallskip}
  Radio           & $1.4$                   &  $6.4 \times 10^{-15}$     & $17.3\times B^{-1/2}_{\mu}$& e$^{\pm}$  Synchrotron   \\
  Optical         & $(7.25{-}14.5)\times 10^5$ &    $1.7 \times 10^{-15}$      & $(1.9{-}2.7)\times 10^{-2}$& e$^{\pm}$  ICS           \\
  EUV             & $(0.31{-}0.43)\times 10^8$ &    $5.2 \times 10^{-14}$      & $0.13{-}0.15$             & e$^{\pm}$  ICS           \\
  HXR             & $(4.83{-}19.3)\times 10^9$ &    $1.0 \times 10^{-13}$      & $1.56{-}3.13$             &  e$^{\pm}$ ICS           \\
                  &                         &  $1.2 \times 10^{-17}$        & $(4{-}16)\times10^{-5}$    &  e$^{\pm}$ Bremsstrahlung\\
  $\gamma$-ray    & $2.42 \times 10^{14}$    &   $6.6 \times 10^{-13}$       & $2$                     &   $\pi^0 \to \gamma \gamma$ decay\\
                  &                         &   $2.2 \times 10^{-15}$       & $2$                     &  e$^{\pm}$  Bremsstrahlung\\
  \hline
\end{tabular}
\end{table}