\begin{table}%T1
\caption{Properties of previously identified GPS sources and candidates.
Type Q denotes quasar; G, galaxy; GL, gravitational lens; and BL, BL~Lac
object. Other parameters are described in Sect.~2.
The percentage polarized flux densities given in brackets are those
measured at 4.9~GHz by \cite{per82}.
}
\label{tab1}
%\centerline
{
\begin{tabular}{l l l c c c c rl c c c c c}
\hline\hline
\noalign{\smallskip}
Source & B1950 or & Refs.~$^{{a}}$ & Type & $z$ & $S_{4.8}$ & $m_{4.8}$ & \multicolumn{2}{c}{$p_{4.8}$} & $\nu_{\rm {pk}}$& $\alpha_{\rm hi}$ & $\Delta\alpha $ &Width & Flag \\
       & other    &      &      &       & (Jy)  &       & \multicolumn{2}{c}{(\%)}  & (GHz)     &               &                 &      &  \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
J0240$-$2309& 0237$-$233&K97V97O98 &Q & 2.223& 2.88& 0.03&     3.47&(4.2)&1.3 &$-$1.1&1.6 &1.2& c \\
J0241$-$0815&  NGC1052  &V97       &G & 0.004& 2.47& 0.09& $<$0.5~~~&(0.3)&7.5 &$-$0.6&1.2 &1.4& c \\
J0414$+$0534& 4C+05.19  &Ka97      &GL& 2.639& 0.68& 0.03& $<$0.5~~~&     &0.4 &$-$1.2&1.7 &1.5& l \\ 
J0459$+$0229& 0457$+$024&V97O98    &Q & 2.384& 1.43& 0.06& $<$0.5~~~&(0.1)&2.4 &$-$0.9&2.2 &1.1& c \\
J0503$+$0203& 0500$+$019&G83V97O98 &Q & 0.583& 2.05& 0.02& $<$0.5~~~&(0.2)&2.8 &$-$0.6&1.4 &1.4& c \\
J0745$-$0044& 0743$-$006&V97O98    &Q & 0.994& 2.05& 0.04&      0.61&     &6.9 &$-$0.5&1.4 &1.2& c \\
J0900$-$2808& 0858$-$279&S85V97    &Q & 2.152& 3.18& 0.08&      0.52&     &5.2 &$-$1.0&1.5 &1.2& c \\ 
J1146$-$2447& 1143$-$245&V97O98    &Q & 1.950& 1.41& 0.04&      0.60&(2.1)&3.1 &$-$1.2&2.3 &1.3& c \\
J1357$-$1744& 1354$-$174&K97V97    &Q & 3.147& 1.16& 0.03&      4.92&     &1.9 &$-$0.6&1.0 &1.7& l \\
J1445$+$0958& 1442$+$101&V97O98    &Q & 3.535& 1.07& 0.03&      2.02&(2.0)&1.0 &$-$0.9&1.3 &1.3& c \\
J1522$-$2730& 1519$-$273&G83V97    &BL& 1.294& 1.74& 0.15&      2.45&(2.6)&5.8 &$-$0.5&1.0 &1.5& l \\
J1543$-$0757& 1540$-$077&V00       &G & 0.172& 1.00& 0.02& $<$0.5~~~&     &0.7 &$-$0.7&0.8 &1.9& c \\
J1723$-$6500& 1718$-$649&T97       &G & 0.014& 4.64& 0.02& $<$0.5~~~&     &2.7 &$-$0.6&1.1 &1.8& c \\
J1744$-$5144& 1740$-$517&K97       &G &  ... & 3.88& 0.02& $<$0.5~~~&     &1.0 &$-$0.8&1.0 &1.7& c \\
J1939$-$6342& 1934$-$638&K97V97    &G & 0.183& 5.84& 0.01& $<$0.5~~~&     &1.4 &$-$1.2&2.2 &1.0& c \\
J2003$-$3251& 2000$-$330&V97       &Q & 3.773& 0.92& 0.04& $<$0.5~~~&     &5.7 &$-$1.7&2.6 &1.1& e \\
J2129$-$1538& 2126$-$158&K97V97O98 &Q & 3.270& 1.18& 0.02& $<$0.5~~~&(0.4)&6.9 &$-$0.6&1.5 &1.3& l \\
J2136$+$0041& 2134$+$004&O98       &Q & 1.936& 9.47& 0.02&      0.60&(0.8)&5.9 &$-$0.6&2.2 &1.1& c \\
J2257$-$3627& 2254$-$367&T03a      &G & 0.006& 1.28& 0.04& $<$0.5~~~&     &2.7 &$-$0.5&1.0 &1.8& c \\
J2336$-$5236& 2333$-$528&V97       &G & ...  & 1.63& 0.02& $<$0.5~~~&     &1.1 &$-$0.6&0.7 &2.5& l \\
\hline
\end{tabular}}
\par
\medskip
$^{{a}}$ References:
G83 = \cite{gop83};
K97 = \cite{kin97};
Ka97 = \cite{kat97};
O98 = \cite{ode98};
S85 = \cite{spo85};
T97 = \cite{tin97};
T03a = \cite{tin03a};
V97 = \cite{dev97};
V00 = \cite{dev00}.
\end{table}