\begin{table}%t1
\caption{\label{tab1}Key model parameters, and corresponding spectral,
  dynamical, and morphological values expected from the calculations.} 
%\centerline
{\small
  \begin{tabular}{l|l}
\hline \hline 
%& Vela Jr  \\ 
$d$ & 1~kpc \\ 
$R_{\rm s}$ & 17.5~pc \\
\hline  
$B_{{\rm d}}$ from X-ray filaments & 139$~{\rm \mu G}$ \\  
\hline &  \\ 
$E_{{\rm sn}}$ & $1.3 \times 10^{51}~{\rm erg}$ \\ 
$M_{{\rm ej}}$ & $3.5~M_{\odot}$ \\ 
$N_{{\rm g}}(R_{{\rm s}})$ & $0.24~{\rm cm^{-3}}$ \\ 
$N_{{\rm g}}(r=0)$ & $0.003~{\rm cm^{-3}}$ \\ 
$k$ & 8 \\ 
$B_{0}$ & $20~{\rm \mu G}$ \\ 
$\eta$ & $3 \times 10^{-4}$ \\ 
$K_{{\rm ep}}$  & $3 \times 10^{-4}$ \\ 
$f_{{\rm re}}$ & 1  \\ 
\hline 
$t_{{\rm sn}}$ & 3745~yr   \\ 
$V_{{\rm s}}(t_{{\rm sn}})$ & $1316~{\rm km~s^{-1}}$ \\ 
$\sigma(t_{{\rm sn}})$ & 5.2 \\ 
$\sigma_{{\rm s}}(t_{{\rm sn}})$ & 3.1  \\ 
$M_{\rm s}(t_{{\rm sn}})$ & $25~M_{\odot}$ \\
$E_{{\rm c}}(t_{{\rm sn}})$ & $4.6 \times 10^{50}~{\rm erg}$ \\ 
$B_{{\rm d}}(t_{{\rm sn}})$(=$\sigma B_{0}$) & $104~{\rm \mu G}$ \\ 
\hline
$P_{{\rm c}}/(\rho_{0}V_{{\rm s}}^{2})$ & 0.145 \\ 
$B_{0}^{2}/(8\pi P_{{\rm c}}) $ & $ 6.5\times 10^{-3}$ \\ 
\hline
  \end{tabular}}
\par
\medskip
Parameter description: the quantities $d$ and $R_{\rm s}$ denote the assumed
distance and the radius 
of the source, respectively, $B_{\rm d}$ is the internal magnetic field
strength, as determined from the thickness of observed \mbox{X-ray} filaments
cf. Eq.~(1), and $E_{\rm sn}$ is the total hydrodynamic explosion energy;
$M_{\rm ej}$, $M_{\rm s}(t_{{\rm sn}})$,
$N_{\rm g}(R_{\rm s})$, and $N_{\rm g}(r=0)$ are the ejected mass,
the swept-up mass, the circumstellar gas number density at the SNR shock, and
the number density at the centre, respectively; $k$ is the power law index of
the ejecta velocity distribution; $B_0$ is the assumed amplified magnetic
field strength in the upstream region of the shock precursor, while $\eta$
and $K_{\rm ep}$ denote the assumed proton injection rate and energetic
electron-to-proton ratio, respectively; $t_{\rm sn}$ is the calculated age
of the SNR; $V_{\rm s}(t_{\rm sn})$, $\sigma(t_{\rm sn})$,
$\sigma_{\rm s}(t_{\rm sn})$, $E_{\rm c}(t_{\rm sn})$, and
$B_{\rm d}(t_{\rm sn})$ are the resulting values of the subshock
velocity, the total compression ratio, the subshock compression ratio, the
total nonthermal energy, and the downstream magnetic field strength,
respectively. Finally, $P_{\rm c}$ and $\rho_0 =
m_{\rm p}N_{\rm g}(R_{\rm s})$ denote the postshock pressure of
accelerated particles and postshock mass density of the gas, respectively.
\end{table}