Table 1: 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 Perley (1982).

Source		 B1950 or Refs. a Type z S4.8 m4.8 p4.8 $\nu_{\rm {pk}}$ $\alpha_{\rm hi}$ $\Delta\alpha $ Width Flag
  other       (Jy)   (%) (GHz)        

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
a References: G83 = Gopal-Krishna et al. (1983); K97 = King et al. (1997); Ka97 = Katz et al. (1997); O98 = O'Dea (1998); S85 = Spoelstra et al. (1985); T97 = Tingay et al. (1997); T03a = Tingay et al. (2003a); V97 = de Vries et al. (1997); V00 = de Vries et al. (2000).

Source LaTeX | All tables | In the text