\begin{table}%t4
%\centering
\par
\caption{\label{spectral_fit}Best fit values for the photon flux spectra of the total pulsed emission (TP), the first (P1) and second (P2) pulse emissions of \psrtar\ assuming a power-law
model of the form $F_{\gamma}= K\cdot (E_{\gamma}/E_0)^{-\Gamma}$.}
\par
\small
\begin{tabular}{lccc}
\hline\hline
Parameter &  TP &  P1   &  P2\\
\hline
\multicolumn{4}{c}{PCA\ \ (2.5--54.0~keV) }\\
\vspace{-2mm}\\
$K$ ($10^{-6}$ ph/cm$^2$~s~keV)       & $2.93 \pm 0.05$ & $2.03 \pm 0.03$ & $0.90 \pm 0.04$\\
$\Gamma$                             & $1.06 \pm 0.03$ & $1.04 \pm 0.03$ & $1.10 \pm 0.08$\\
$E_0$ (keV)                          & $8.34$          & $8.34$          & $8.34$         \\
$F_{2-30}$ ($10^{-13}$ erg/cm$^2$~s)  & $10.67\pm 0.16$ & $7.43\pm 0.11$  & $3.24\pm 0.13$ \\
\vspace{-2mm}\\
\multicolumn{4}{c}{XMM/PCA/HEXTE\ \  (0.56--267.5~keV) }\\
\vspace{-2mm}\\
$K$ ($10^{-6}$ ph/cm$^2$~s~keV)          & $2.85 \pm 0.04$ &                 &                \\
$\Gamma$                                & $1.03 \pm 0.02$ &                 &                \\
$E_0$ (keV)                             & $8.49$          &                 &                \\
$F_{0.5{-}150}$ ($10^{-12}$ erg/cm$^2$~s)  & $5.48\pm 0.28$  &                 &                \\
\hline
\end{tabular}
\end{table}