\begin{table}%t5 \caption{\label{pulsar_comparison}Characteristics of the three young ($<$10 kyr) X-ray and $\gamma$-ray emitting pulsars in comparison with the middle-aged Vela pulsar (PSR B0833-045).} \par %\centerline {\small \begin{tabular}{lcccccccccc} \hline\hline\noalign{\smallskip} Source & $d$ & $P$ & $\tau$ & $L_{\rm sd}$ & $F_{\rm x}$\tablefootmark{a} & $F_{\gamma}$\tablefootmark{b} & $L_{\rm x}$\tablefootmark{a} & $\eta_{\rm x}$\tablefootmark{a} & $L_{\gamma}$\tablefootmark{b} & $\eta_{\gamma}$\tablefootmark{b}\\ &[kpc] & [ms] & [ky] & [erg/s] & [erg/cm$^2$ s] & [erg/cm$^2$ s] & [erg/s] & & [erg/s] & \\ \hline\noalign{\smallskip} B0531+21 & 2.0 & 29.7 & 1.3 &4.4E+38 & $(5.68\pm 0.05)$E-09 & $(1.3\pm0.1)$E-09$^{\ }$ & $(2.72\pm0.02)$E+36 & $6.2$E-3 & $(6.1\pm0.3)$E+35$^{\ }$ & $1.4$E-3$^{\ }$\\ B1509-58 & 5.8 & 151.5 & 1.6 &1.7E+37 & $(1.46\pm 0.02)$E-10 & $(5.1\pm2.5)$E-11\tablefootmark{c} & $(5.88\pm0.08)$E+35 & $3.5$E-2 & $(2.1\pm1.0)$E+35\tablefootmark{c} & $1.2$E-2\tablefootmark{c}\\ J0205+6449 & 3.2 & 65.7 & 5.4 &2.7E+37 & $(0.36\pm 0.02)$E-11 & $(6.7\pm0.5)$E-11$^{\ }$ & $(4.45\pm0.20)$E+33 & $1.7$E-4 & $(8.2\pm0.6)$E+34$^{\ }$ & $3.0$E-3$^{\ }$\\ B0833-045 & 0.287 & 89.3 & 11.4 &6.9E+36 & $(0.88\pm 0.29)$E-11 & $(7.9\pm0.3)$E-09$^{\ }$ & $(8.67\pm2.85)$E+31 & $1.3$E-5 & $(7.8\pm0.3)$E+34$^{\ }$ & $1.1$E-2$^{\ }$\\ \hline \end{tabular}} \tablefoot{The luminosities of the pulsed emission $L$ are calculated as $L = 4\pi d^2Ff_{\Omega}$ with values for the distance $d$ taken from the table, and the beaming fraction $f_\Omega$ set to 1. $F$ represent the pulsed flux. \tablefoottext{a}{Luminosities, fluxes, and efficiencies labeled with $x$ are evaluated for the 2--100~keV band.} \tablefoottext{b}{Luminosities, fluxes, and efficiencies labeled with $\gamma$ are evaluated for the 0.1--10~GeV band.} \tablefoottext{c}{The $\gamma$-ray energy flux of PSR B1509-58 in the 0.1--10~GeV band has been derived from the (total) photon flux values for the 100--300 and 300--1000~MeV bands as given in \citet{kuiper1999} assuming a power-law shape with photon index of $2.5$, and should be considered as an upper-limit to the pulsed flux of PSR B1509-58 in the 0.1--10~GeV band.}} \end{table}