2000MNRAS.319.1109G

Query : 2000MNRAS.319.1109G

2000MNRAS.319.1109G - Mon. Not. R. Astron. Soc., 319, 1109-1124 (2000/December-3)

Analysis of λ=6cm VLBI polarization observations of a complete sample of northern BL Lacertae objects.

GABUZDA D.C., PUSHKAREV A.B. and CAWTHORNE T.V.

Abstract (from CDS):

The results of very long baseline interferometry (VLBI) total intensity (I) and linear polarization (P) observations at {formmu1} are presented for 10 radio bright BL Lacertae objects. These images complete first-epoch polarization observations for the 1-Jy sample of northern BL Lacertae objects defined by Kühr & Schmidt. Estimates of superluminal speeds are presented for several sources, bringing the total number of sources in the sample for which such estimates are available to 16. Second-epoch observations currently being reduced should yield speed estimates for VLBI features in essentially all the sources in the sample. The jet magnetic fields of these BL Lacertae objects are usually transverse to the local jet direction, but a sizeable minority (about 30per cent) have VLBI jet components with longitudinal magnetic fields. This may suggest that the conditions in the VLBI jets of BL Lacertae objects are favourable for the formation of relativistic shocks; alternatively, it may be that the toroidal component of the intrinsic jet magnetic field is characteristically dominant in these sources.

Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): polarization - BL Lacertae objects: general - radio continuum: galaxies

Nomenclature: Table 3: Gabuzda HHMM+DDd Core N=8, Gabuzda 0003-066 KN (Nos K4-K5) added, Gabuzda 0814+425 KN (Nos K1-K5), Gabuzda 0820+225 KNN (Nos K1-K11), Gabuzda 0823+033 KN (Nos K1-K3), Gabuzda 1334-127 KN (Nos K1-K3), Gabuzda 1732+389 KN (Nos K1-K3), Gabuzda 2131-021 KN (Nos K1-K5), Gabuzda 2155-152 KN (Nos K, K1)), Gabuzda 2150+173 KN (Nos K1-K5).

Simbad objects: 91

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Number of rows : 91
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO B0003-066 BLL 00 06 13.89288482 -06 23 35.3353584   19.1 18.50 17.14   ~ 346 1
2 QSO B0119+115 Bla 01 21 41.59504128 +11 49 50.4132344   19.5 19.70 18.61   ~ 200 1
3 1RXS J014126.8-092857 BLL 01 41 25.83216015 -09 28 43.6742470   16.94 16.55 17.21   ~ 302 1
4 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
5 QSO B0256+075 Bla 02 59 27.07662321 +07 47 39.6429924   18 18 16.9   ~ 210 1
6 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
7 QSO B0454+844 BLL 05 08 42.36351222 +84 32 04.5441733     16.5 18.95   ~ 250 1
8 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1388 1
9 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 1045 1
10 QSO B0745+241 Bla 07 48 36.10928140 +24 00 24.1099425   19.70 18.89 17.88   ~ 239 1
11 7C 081451.89+423206.00 BLL 08 18 15.99961476 +42 22 45.4148987   18.88 18.18 17.81   ~ 429 1
12 4C 22.21 BLL 08 23 24.7592164368 +22 23 03.287299236   20.22 19.57 19.7   ~ 186 1
13 QSO B0823+033 BLL 08 25 50.33835759 +03 09 24.5199749   17.81 17.23 16.91   ~ 352 1
14 6C 082850+492334 BLL 08 32 23.21674252 +49 13 21.0382979   20.17 19.63     ~ 173 1
15 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
16 6C 095456+654857 BLL 09 58 47.2451872176 +65 33 54.819354600     17.0 15.75   ~ 771 1
17 7C 1147+2434 BLL 11 50 19.21218244 +24 17 53.8352318   16.26 15.74 15.80   ~ 294 1
18 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
19 QSO B1334-127 Bla 13 37 39.78278132 -12 57 24.6933925   18.5 19.00 16.22   ~ 540 1
20 Mrk 668 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 826 3
21 6C 141804+543700 BLL 14 19 46.5974051952 +54 23 14.787857796   16.17 15.65 14.16   ~ 630 1
22 4C 14.60 BLL 15 40 49.49151924 +14 47 45.8846989   17.72 17.30 17.240   ~ 448 1
23 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
24 7C 173240.70+385949.00 BLL 17 34 20.57853650 +38 57 51.4430945   19.5 19 19.00   ~ 232 1
25 RX J1748.5+7005 BLL 17 48 32.8402992264 +70 05 50.768819304   17.46 17.01 15.48   ~ 456 2
26 4C 09.57 BLL 17 51 32.81857326 +09 39 00.7284066   17.46 16.78 15.57   ~ 1007 1
27 1RXS J180043.6+782806 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 15.90 16.134   ~ 793 1
28 Z 340-35 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 909 1
29 4C 56.27 BLL 18 24 07.06837171 +56 51 01.4908155   18.9 19.30 16.48   ~ 510 1
30 8C 2007+777 BLL 20 05 30.9987913056 +77 52 43.248139536     16.5 17.36   ~ 474 1
31 4C -02.81 BLL 21 34 10.30958988 -01 53 17.2389056   18.6 19.00 18.87   ~ 431 1
32 QSO B2150+173 BLL 21 52 24.81939266 +17 34 37.7950210     17.9 17.98   ~ 186 2
33 QSO B2155-152 Bla 21 58 06.28188411 -15 01 09.3284729   18.63 18.30 17.79   ~ 355 1
34 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
35 QSO B2254+0727 BLL 22 57 17.30311778 +07 43 12.3025633   17.07 16.36     ~ 317 1
36 Gabuzda 2131-021 K3 ? ~ ~           ~ 1 0
37 Gabuzda 2131-021 K4 ? ~ ~           ~ 1 0
38 Gabuzda 2131-021 K5 ? ~ ~           ~ 1 0
39 Gabuzda 2155-152 Core ? ~ ~           ~ 1 0
40 Gabuzda 2155-152 K ? ~ ~           ~ 1 0
41 Gabuzda 2155-152 K1 ? ~ ~           ~ 1 0
42 Gabuzda 2150+173 Core ? ~ ~           ~ 1 0
43 Gabuzda 2150+173 K1 ? ~ ~           ~ 1 0
44 Gabuzda 2150+173 K2 ? ~ ~           ~ 1 0
45 Gabuzda 2150+173 K3 ? ~ ~           ~ 1 0
46 Gabuzda 2150+173 K4 ? ~ ~           ~ 1 0
47 Gabuzda 2150+173 K5 ? ~ ~           ~ 1 0
48 Gabuzda 0003-066 K1 ? ~ ~           ~ 2 0
49 Gabuzda 0003-066 K2 ? ~ ~           ~ 2 0
50 Gabuzda 0003-066 K3 ? ~ ~           ~ 2 0
51 Gabuzda 0003-066 K4 ? ~ ~           ~ 2 0
52 Gabuzda 0003-066 Core ? ~ ~           ~ 2 0
53 Gabuzda 2254+074 K1 ? ~ ~           ~ 2 0
54 Gabuzda 2254+074 K2 ? ~ ~           ~ 2 0
55 Gabuzda 0003-066 K5 ? ~ ~           ~ 1 0
56 Gabuzda 2254+074 Core ? ~ ~           ~ 2 0
57 Gabuzda 2254+074 K3 ? ~ ~           ~ 2 0
58 Gabuzda 0003-066 K6 ? ~ ~           ~ 1 0
59 Gabuzda 0814+425 Core ? ~ ~           ~ 1 0
60 Gabuzda 0814+425 K1 ? ~ ~           ~ 1 0
61 Gabuzda 0814+425 K2 ? ~ ~           ~ 1 0
62 Gabuzda 0814+425 K3 ? ~ ~           ~ 1 0
63 Gabuzda 0814+425 K4 ? ~ ~           ~ 1 0
64 Gabuzda 0814+425 K5 ? ~ ~           ~ 1 0
65 Gabuzda 0820+225 Core ? ~ ~           ~ 1 0
66 Gabuzda 0820+225 K1 ? ~ ~           ~ 1 0
67 Gabuzda 0820+225 K2 ? ~ ~           ~ 1 0
68 Gabuzda 0820+225 K3 ? ~ ~           ~ 1 0
69 Gabuzda 0820+225 K4 ? ~ ~           ~ 1 0
70 Gabuzda 0820+225 K5 ? ~ ~           ~ 1 0
71 Gabuzda 0820+225 K6 ? ~ ~           ~ 1 0
72 Gabuzda 0820+225 K7 ? ~ ~           ~ 1 0
73 Gabuzda 0820+225 K8 ? ~ ~           ~ 1 0
74 Gabuzda 0820+225 K9 ? ~ ~           ~ 1 0
75 Gabuzda 0820+225 K10 ? ~ ~           ~ 1 0
76 Gabuzda 0820+225 K11 ? ~ ~           ~ 1 0
77 Gabuzda 0823+033 Core ? ~ ~           ~ 1 0
78 Gabuzda 0823+033 K1 ? ~ ~           ~ 1 0
79 Gabuzda 0823+033 K2 ? ~ ~           ~ 1 0
80 Gabuzda 0823+033 K3 ? ~ ~           ~ 1 0
81 Gabuzda 1334-127 Core ? ~ ~           ~ 1 0
82 Gabuzda 1334-127 K1 ? ~ ~           ~ 1 0
83 Gabuzda 1334-127 K2 ? ~ ~           ~ 1 0
84 Gabuzda 1334-127 K3 ? ~ ~           ~ 1 0
85 Gabuzda 1732+389 Core ? ~ ~           ~ 1 0
86 Gabuzda 1732+389 K1 ? ~ ~           ~ 1 0
87 Gabuzda 1732+389 K2 ? ~ ~           ~ 1 0
88 Gabuzda 1732+389 K3 ? ~ ~           ~ 1 0
89 Gabuzda 2131-021 Core ? ~ ~           ~ 1 0
90 Gabuzda 2131-021 K1 ? ~ ~           ~ 1 0
91 Gabuzda 2131-021 K2 ? ~ ~           ~ 1 0

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