1998AJ....116.2119V

Query : 1998AJ....116.2119V

1998AJ....116.2119V - Astron. J., 116, 2119-2122 (1998/November-0)

Optical polarization of 52 radio-loud QSOs and BL Lacertae objects.

VISVANATHAN N. and WILLS B.J.

Abstract (from CDS):

Polarization measurements are presented for 52 radio-loud QSOs and BL Lac objects. For nine highly polarized (p > 3%) active galactic nuclei (AGNs), these are the first published polarization measurements. Of these nine, seven are highly polarized QSOs (HPQs), one is a BL Lac object, and another is a likely BL Lac object. Polarization variability is confirmed for some of these new and previously known highly polarized AGNs. While six of the HPQs have flat radio spectra and are almost certainly blazars, PKS 1452-217 is probably a new member of the rare class of radio-loud QSOs that show high polarization by scattering, and it is therefore important for testing orientation unified schemes. In competition for the highest redshift HPQ are the well-observed QSO PKS 0438-43 at z = 2.85, with maximum p ∼ 4.7%, and PKS 0046-315 at z = 2.72, for which we find p ∼ 13%.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: BL Lacertae Objects: General - Galaxies: Quasars: General - Radio Continuum

Simbad objects: 53

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Number of rows : 53
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 QSO B0046-315 QSO 00 49 22.9008091128 -31 16 27.325345188   17.89 17.70 17.7   ~ 41 1
2 QSO B0301-243 BLL 03 03 26.5025589984 -24 07 11.426291220   16.55 16.18     ~ 223 1
3 QSO B0422-380 QSO 04 24 42.24370316 -37 56 20.7843026   17.96 18.08 18.03   ~ 100 1
4 QSO B0438-43 QSO 04 40 17.17997576 -43 33 08.6043290   19.31 19.5 18.2   ~ 287 2
5 QSO B0448-392 QSO 04 49 42.2546470224 -39 11 09.470347512   16.70 16.46 16.28   ~ 74 1
6 ESO 362-21 Sy1 05 22 57.98464178 -36 27 30.8512953   15.26 14.62 14.48   ~ 834 2
7 QSO B0537-441 BLL 05 38 50.36155950 -44 05 08.9390233   15.77 16.48 16   ~ 883 2
8 QSO B0548-322 BLL 05 50 40.5705144672 -32 16 16.484718648   16.07 15.5     ~ 408 1
9 QSO B0629-418 QSO 06 31 11.99804084 -41 54 26.9466088   18.78 19.3 18.9   ~ 59 1
10 QSO J0635-7516 Bla 06 35 46.5079301472 -75 16 16.816418256   15.96 15.75 15.82   ~ 588 1
11 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 992 1
12 QSO B0754+10 BLL 07 57 06.64295154 +09 56 34.8522544   15.43 15.00 15.99   ~ 439 1
13 QSO B0808+019 BLL 08 11 26.70731711 +01 46 52.2201568   17.58 17.2 17.96   ~ 241 1
14 QSO B0818-128 BLL 08 20 57.44762374 -12 58 59.1692275   15.30 15.00 16.5   ~ 178 1
15 QSO B0823+033 BLL 08 25 50.33835759 +03 09 24.5199749   17.81 17.23 16.91   ~ 329 1
16 QSO B0823-223 BLL 08 26 01.5730900658 -22 30 27.204409684   16.11 16.20     ~ 210 1
17 ICRF J083148.8+042939 Sy1 08 31 48.8770033992 +04 29 39.086842884   17.10 16.4 14.55   ~ 470 2
18 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2331 1
19 QSO B0858-771 QSO 08 57 42.6266405304 -77 19 31.826043336   17.77 17.57     ~ 37 1
20 QSO B0959-443 QSO 10 01 59.9082504600 -44 38 00.602926476   14.11 15.90     ~ 51 1
21 PKS 1020-10 BLL 10 22 32.8200967176 -10 37 44.309640648   16.25 16.11 16.0   ~ 139 1
22 QSO B1034-374 QSO 10 36 53.43960110 -37 44 15.0658359   18.89 19.5 18.99   ~ 67 1
23 QSO B1034-293 QSO 10 37 16.07974265 -29 34 02.8134977   16.46 16.46 17.54   ~ 334 1
24 CTS 10 Sy1 11 03 31.5264793968 -32 51 16.694017200   16.29 16.30 16.4   ~ 113 1
25 QSO B1155+169 QSO 11 57 34.8362459400 +16 38 59.651593404   18.07 17.68     ~ 50 1
26 QSO B1204-12 QSO 12 06 39.0 -12 54 09   17.5       ~ 11 0
27 QSO B1206-238 BLL 12 09 02.44510958 -24 06 20.7591255   19.31 18.0 18.57   ~ 54 1
28 QSO B1207-399 QSO 12 09 35.2436926176 -40 16 13.097173656   17.49 16.98     ~ 67 1
29 QSO B1216-010 BLL 12 18 34.9299611304 -01 19 54.342898428 18.43 18.30 18.01 18.2   ~ 109 0
30 QSO B1243-412 QSO 12 45 57.6306392928 -41 28 45.188271804   18       ~ 19 1
31 QSO B1256-220 QSO 12 58 54.47878185 -22 19 31.1250428   19.16 20 19.20   ~ 108 1
32 OHIO P -103 * 13 04 34.7501193384 -19 32 45.932877096   17.4 16.66     ~ 13 2
33 ICRF J130533.0-103319 Sy1 13 05 33.0150535680 -10 33 19.430383680   15.18 15.23 14.46   ~ 578 1
34 QSO B1307+121 BLL 13 09 33.93245274 +11 54 24.5530422 18.95 18.72 18.28 18.16   ~ 142 1
35 ICRF J135256.5-441240 BLL 13 52 56.53494646 -44 12 40.3876155   16.95 16.37     ~ 119 3
36 QSO B1355-4138 BLL 13 59 00.1848056808 -41 52 52.639227912   15.76 15.86 16.37   ~ 148 1
37 ICRF J140244.5+155956 Sy2 14 02 44.5145118408 +15 59 56.654415816   17.20 16.74 15.5   ~ 149 2
38 ICRF J145427.4-374733 Sy1 14 54 27.40976313 -37 47 33.1448219   16.36 16.69 16.14   ~ 182 1
39 QSO B1452-217 QSO 14 55 37.9905420600 -21 59 28.395559140     18.6     ~ 23 1
40 QSO B1514+197 BLL 15 16 56.79616460 +19 32 12.9919519 18.59 18.19 18.7 17.51   ~ 167 1
41 QSO B1514-24 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 769 3
42 QSO B1532+016 QSO 15 34 52.45368345 +01 31 04.2065145   19.0 18.5 18.58   ~ 202 2
43 QSO B1912-550 BLL 19 16 39.2159867496 -54 54 47.351483928   16.58 16.49     ~ 52 1
44 QSO B1921-293 BLL 19 24 51.05595254 -29 14 30.1210248   18.71 18.21 15.07   ~ 868 0
45 QSO B1954-388 QSO 19 57 59.81927491 -38 45 06.3558881   18.47 17.07 16.73   ~ 220 1
46 QSO J2118-3019 QSO 21 18 10.5979449720 -30 19 11.609705064   16.96 16.47 16.2   ~ 98 1
47 QSO B2128-123 BLL 21 31 35.2617909696 -12 07 04.795364172   16.33 16.11 15.87   ~ 455 1
48 ICRF J213745.1-143255 Sy1 21 37 45.1959922824 -14 32 55.695508728 15.41 15.63 15.53 15.0   ~ 372 0
49 ICRF J214335.5+174348 Sy1 21 43 35.54456275 +17 43 48.7875890   15.91 15.73 15.17   ~ 389 1
50 4C 06.69 Bla 21 48 05.45866779 +06 57 38.6041877   16.85 16.47 15.06   ~ 676 1
51 QSO B2155-304 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1732 1
52 4C -03.79 QSO 22 18 52.03772044 -03 35 36.8795441   16.93 16.38 16.15   ~ 341 1
53 3C 446 BLL 22 25 47.25929101 -04 57 01.3907626   18.83 18.39 16.3   ~ 830 1

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