Table A1. Gaussian models for the added sources. The components are fitted to our own, or FIRST [ddddd+dd], or NVSS [CddddPdd] VLA maps
|name||(J2000)||(J2000)||[mJ y]||[ ]||['']||[ ]||map|
|0753+360||07 56 21.56||+35 54 43.0||20 4||13 8||8.3||11 1||07570+36|
|21.98||41.0||20 8||11 3|
|0753+373||07 56 28.26||+37 14 55.8||23 6||3 5||-||-||07570+37|
|0754+368||07 57 51.29||+36 39 33.6||13 0||1 6||> 76||2 4||C0806P36|
|53.82||40 42.2||16 2||7|
|0809+503||08 13 17.11||+50 12 29.1||22 5||6 2||47||6 1||C0824P52|
|20.55||47.1||34 3||5 3|
|0813+379||08 16 44.52||+37 49 12.1||13 1||2 5||12||12 6||08150+37|
|45.01||20.1||19 0||4 2|
|0820+367||08 23 47.83||+36 32 51.6||18 0||13 9||23||15 6||08240+36|
|0922+322||09 25 32.73||+31 59 52.9||53 1||16 6||-||-||09240+32|
|0958+346||10 01 11.92||+34 24 50.4||20 3||2 9||<1.2||-||own|
|1042+392||10 45 14.67||+38 56 39.8||31 6||6 5||11||9 6||own|
|15.40||36.7||35 0||8 5|
|1127+348||11 30 04.95||+34 34 40.6||9 5||13 0||35||12 7||11300+34|
|06.57||24.3||10 2||17 7|
|1420+326||14 22 30.38||+32 23 10.4||40 8||1 8||-||-||14210+32|
|1550+346||15 52 50.59||+34 30 16.3||19 5||9 0||-||-||15510+34|
|1619+378||16 21 11.29||+37 46 04.9||62 7||5 5||-||-||16210+37|
This Appendix contains additional 1400-MHz and 4885-MHz VLA maps of some sources from the original sample, and numerical data of those sources included in the revised sample which are adequately described by Gaussian component fits to the VLA images.
Figure A1 (click here) shows the 4885-MHz maps of central regions of six but one radio galaxies from Table 4 (click here). The maps resolution (FWHB of the restoring beam) is about 0.5 arcsec. Two of these galaxies (0912+489 and 1104+365) have FRII morphology with unresolved radio cores. The remaining (0838+325, 1059+351, 1141+466, and 1325+321) are classified as FRI type. In these latter sources, a radio core was detected in the 0838+325 galaxy only. The inner structure of this galaxy, of size of about 17 kpc, consists of two bright emitting regions extended symmetrically off the core. They resemble usual "hot spots" at the edge of classical double edge-brigthtened (FRII) structure, however the low-resolution 1.4-GHz VLA images of this source (Fanti et al. 1986; 1987) show very extended diffuse emission stretched out far away from these bright spots, and characteristic for edge-darkened sources. No trace of jets were detected. A similar inner structure but without a pronounced core characterizes the galaxy 1141+466 as well. In turn, the brightest spots in an inner "S-shaped" structure of the galaxies 1059+351 and 1325+321 are evidently related to a base of twisted jets.
The inner part of the optically unidentified source 1348+352 is very enigmatic. The VLA 1465-MHz map (Machalski & Condon 1983b) showed the very bright central region suggesting a core-jet structure and a low-brightness extended emission. A twisted ridge could be seen in it. The reality of that emission is now confirmed due to the FIRST survey. A relevant image of the source (on the FIRST map 13510+35071) indicates that the diffused emission includes about 45 per cent of the total flux at 1400 MHz. Surprisingly, our VLA 4885-MHz map (Fig. A1 (click here)) of the source's central region with the angular resolution of about 0.5 arcsec does not show a typical core structure. The arcsec region reveals a "hot spot" at its westernmost side and a ring-like emission towards the east. This "hot spot" with a deconvolved size of arcsec has a spectral index between 1.4 and 5 GHz, . It is flatter than the corresponding index of the central region, which has . The extended diffuse emission has exactly the same index of 0.84. Consequently, the source 1348+352 is probably of FRI type, with twisted structure characteristic for precessing jets but strongly projected onto the sky.
The correct 1400-MHz map of the galaxy 0910+353, reproduced from the FIRST 09120+35 map is shown in Fig. A2 (click here). Parameters of the Gaussian components fitted by the least-square method to VLA images of the sources added to the revised sample, and the sky coordinates of the identified optical objects (cf. Table A3 (click here)), are given in Table A1 (click here). If these fits were taken from the FIRST or NVSS maps, this is noted in Table A1 (click here) by the number of original VLA map.
Figure A1: VLA 4885-MHz contour maps of the sources selected from the revised GB/GB2 sample. FWHB of the restoring beam is arcsec. The contour levels are shown under each map. The best optical positions of the center of identified galaxies are marked by the large crosses
Figure A2: VLA 1400-MHz contour map of the source 0910+353 reproduced from the FIRST 09120+35 map (courtesy of R. Becker). FWHB of the restoring beam is arcsec. The contour levels are are shown under the map. The position of the optical galaxy is marked by the cross
Notes to individual sources in Table A3 (click here)
0717+367: in Abell cluster 579
0722+393: Confusing, flat-spectrum, possibly variable source at (5.8 arcmin away). mJy.
0723+488: A featureless optical spectrum was observed in March 1992 with the Asiago 182-cm telescope (cf. Machalski 1992). Variable in the radio (cf. Table A3 (click here)) and likely in the optical.
0751+485: A featureless optical spectrum was observed in March 1992 with the Asiago 182-cm telescope (cf. Machalski 1992).
0755+379: NGC 2484; UGC 4125. References to WSRT maps and physical parameters in Condon & Broderick (1988).
0755+480A: Confusing, extended, double source 0755+480B (3.0 arcmin away), identified with a faint galaxy.
0804+499A: 8.4 arcmin apart from very compact variable quasar 0804+499B.
0804+370: Confusing source at , mJy.
0809+328: The radio source is likely associated with one of two close (separation of 2.3 arcsec) galaxies in a pair.
0810+351: Centroid of the double radio source coincides well with the bright elliptical galaxy, however morphological type of the source with evident bright "hot spots" is not typical for galaxies at z<0.1.
0816+367: Confusing flat-spectrum source at (4.5 arcmin away). 100 mJy.
0818+472: Two confusing sources: mJy at (5.2 arcmin away), and S1.4=54 mJy, flat-spectrum, at (6.9 arcmin away).
0822+394: The spectrum breaks at about 1.4 GHz. Low- and high-frequency spectral indices differ significantly: , .
0829+512: Neither of two suggested galaxy identifications (cf. Paper III) is convincing, however association of the radio source with a faint distant galaxy is very probable.
0838+325: in Abell cluster 694/695. 4885-MHz VLA map of the central part of the source is shown in Fig. A1 (click here) (Appendix).
0844+319: IC 2402 galaxy.
0906+480A: Close pair (4.3 arcmin apart) with 0906+480B. Both are very compact; deconvolved size of arcsec at 5 GHz. Spectral indices quoted in Paper IV and Machalski & Inoue (1990) were erroneously interchanged. Probably variable above 5 GHz.
0908+380: Confusing, steep-spectrum source
(0908+380B in the B3VLA sample; Vigotti et al. 1989) at (3.1 arcmin away). 150 mJy.
0910+353: The VLA A-array map and optical identification of the source published in Paper IV were wrong. The correct map reproduced from the FIRST survey (courtesy of R.H. Becker) with the new identification indicated is shown in Fig. A2 (click here) (Appendix).
0911+354: Northern component with mJy (cf. VLA A-array map in Paper IV) may be a separate source.
0918+381: Confusing, very steep-spectrum, double source 0919+381 at (6.9 arcmin away). mJy.
0927+352: Radio, optical, and X-ray properties of the source are discussed in Machalski & Brandt (1996).
0928+480: Southern component at 0931; +47 (marked "B" in Paper II) is likely a separate source. S1.4=186 mJy in NVSS.
0949+354: Confusing, flat-spectrum source at (5.2 arcmin away). 50 mJy.
0954+346: Confusing, steep-spectrum source at (4.8 arcmin away). 90 mJy
0955+320: Confusing, steep-spectrum source at (7.1 arcmin away). 170 mJy
1003+484: 3C 235. The spectrum breaks at about 320 MHz. , .
1014+397: The optical magnitudes are for the galaxy at (cross "1" in Paper II). Vigotti et al. (1989) identified this extended double source with another brighter galaxy at . Thompson et al. (1992) determined it as a NLRG with the redshift of 0.089.
1017+487: in Abell cluster 1003.
1049+384: The optical spectrum shows intermediate properties between galaxies and quasars (Allington-Smith et al. 1988).
1104+365: The optical spectrum as above.
1127+507: Confusing steep-spectrum source 1126+506 at (6.1 arcmin away). mJy.
1129+351: The optical spectrum shows intermediate properties between galaxies and quasars (Allington-Smith et al. 1988).
1131+493: UGC 6549; IC 708; in Abell cluster 1314. References to WSRT maps and physical parameters in Condon & Broderick (1988).
1132+492: IC 711; in Abell cluster 1314. Low-resolution Effelsberg map at 2.7 GHz in Haslam et al. (1978).
1141+466: in Abell clusted 1361. Low-resolution Effelsberg map at 2.7 GHz in Waldhausen et al. (1979). Confusing, flat-spectrum source at 1143109; +4623'40'' (5.5 arcmin away). mJy. For its low-resolution maps cf. Rudnick & Owen (1977) and Andernach et al. (1980). 4885-MHz VLA map of central part of the source is shown in Fig. A1 (click here) (Appendix).
1144+352: A total extent of the radio emission of about 10 arcmin (about 990 kpc) is suggested from the 4.85-GHz map N111200W of Condon et al. (1989). Its position angle (PA) of about 105 deg is compatible with of a two-sided, about 45 kpc extended, emission from the very compact and bright core on the map 11480+35071B of Becker et al. (1995). Moreover, the VLBI-scale structure (about 22 mas, corresponding to about 37 pc) observed by Henstock et al. (1995), has .
1144+497: Confusing source at ; (4.1 arcmin away). mJy. Though the blue optical object lies on the overall axis of this double source, the identification is not convincing.
1151+384: Bright, confusing, steep-spectrum double source 1151+383 at (6.9 arcmin away). mJy.
1152+462: Confusing source 1152+463 at 115443; (7.5 arcmin away). 10 mJy Designated as 1152+462B in Paper V).
1158+345: The optical identification is not certain.
1202+499B: Confusing source 1202+499A (3.0 arcmin away). S1.4=154 mJy.
1216+475: M 106; NGC 4258; UGC 7353. Low-luminosity, starburst galaxy with a trace of non-thermal nucleus. References to WSRT and Effelsberg maps, as well as physical parameters in Condon & Broderick (1988).
1218+489: Though the blue optical object lies on overall axis of this source (cf. Paper IV), the identification may be an accidental one.
1226+492: Confusing, flat-spectrum source at ; (6.6 arcmin away). 50 mJy.
1230+486: Very likely variable at frequencies above 5 GHz. Confusing steep-spectrum source at ; (4.7 arcmin away) identified with 4C 48.35. mJy.
1231+495: Faint red optical object at ; (cf. Paper IV) might be associated with this double radio source.
1237+353: Confusing, compact, steep-spectrum source at ; (6.4 arcmin away). mJy.
1239+328: NGC 4631; UGC 7865. Low-luminosity star-burst galaxy. References to WSRT, NRAO interferometer, and Effelsberg maps, as well as physical parameters in Condon & Broderick (1988).
1248+350: Deep observations of the field at 408 MHz (5C12 survey: Benn et al. 1982), at 610 and 1415 MHz (WSRT surveys: Katgert 1978; Katgert et al. 1973, respectively). Identified with 5C 12.2 and 1248+ 35W1. Confusing, faint, double source (5C 12.4; 1248+ 34W1) at (4.7 arcmin away). 90 mJy.
1249+508: 3C 277. The spectrum breaks at about 1.1 GHz. , .
1256+489: 4C 48.36. Confusing, steep-spectrum source at (5.4 arcmin away). mJy.
1322+366: NGC 5141; UGC 8433. WSRT 5-GHz map in Fanti et al. (1977). Physical parameters in Condon & Broderick (1988).
1324+498A: Confusing, flat-spectrum source
1324+498B at (4.1 arcmin away). mJy.
1327+474: M 51; NGC 5194; UGC 8493. Low-luminosity star-burst galaxy with faint non-thermal radio core. References to WSRT and Effelsberg maps, as well as physical parameters in Condon & Broderick (1988). The spectrum breaks at about 1.4 GHz. , .
1329+503: Confusing, steep-spectrum source at (6.7 arcmin away). 200 mJy.
1348+352: Unique radio source; a more detailed discussion in the Appendix.
1354+325: For a discussion of the optical field, cf. Machalski & Condon (1985b).
1413+349: Confusing, steep-spectrum source at (4.4 arcmin away). 130 mJy.
1415+463: 4C46.29. Confusing source 1414+463 at (6.0 arcmin away). 140 mJy.
1452+502A: Close pair (2.5 arcmin apart) with compact quasar 1452+502B. All flux densities in the surveys given in Col. 2 are strongly confused.
1504+346: in Abell cluster 2025.
1507+476: The optical galaxy is 2.1 arcsec apart from this compact radio source whose observed structure was deconvolved into two "point" components separated by 0.87 arcsec (Paper III).
1527+349: For a discussion of the optical field cf. Paper III.
1546+487: Confusing, steep-spectrum source at
(7.1 arcmin away). 220 mJy.
1613+345: Two confusing sources at ; and ; (4.8 and 6.1 arcmin away, respectively), was recorded as 1613+344 in Owen et al. (1983) with a total flux mJy.
1615+351: NGC 6109; UGC 10316. References to WSRT maps, and physical parameters in Condon & Broderick (1988).
1626+396: NGC 6166; UGC 10409. WSRT 1.4 and 5 GHz maps in Jaffe & Perola (1974). Physical parameters in Condon & Broderick (1988).
1636+379: in Abell cluster 2214.
Table 3: The revised GB/GB2 sample
Table 3: continued
Table 3: continued
Table 3: continued
Table 3: continued