2007AJ....133.2357P

Query : 2007AJ....133.2357P

2007AJ....133.2357P - Astron. J., 133, 2357-2388 (2007/May-0)

Relativistic jets in the Radio Reference Frame Image Database. I. Apparent speeds from the first 5 years of data.

PINER B.G., MAHMUD M., FEY A.L. and GOSPODINOVA K.

Abstract (from CDS):

We present the results of an analysis of relativistic jet apparent speeds from VLBI images in the Radio Reference Frame Image Database (RRFID). The images are snapshot VLBI images at 8 and 2 GHz using the VLBA, plus up to 10 additional antennas that provide global VLBI coverage. We have analyzed the 8 GHz images from the first 5 years of the database (1994-1998), for all sources observed at three or more epochs during this time range. This subset comprises 966 images of 87 sources. The sources in this subset have an average of 11 epochs of observation over the years 1994-1998, with the best-observed sources having 19 epochs. About half of the sources in this RRFID kinematic survey have not been previously studied with multiepoch VLBI observations. We have measured apparent speeds for a total of 184 jet components in 77 sources, of which the best-measured 94 component speeds in 54 sources are used in the final analysis. The apparent speed distribution shows a peak at low apparent speeds (consistent with stationary components), a tail extending out to apparent speeds of about 30c, and a mean apparent speed of 3.6c. A total of 36 of the sources in this paper are also included in the 2 cm VLBA survey by Kellermann et al., with similar angular resolution, sensitivity, and time range. For those sources, we present a detailed component-by-component comparison of the apparent speeds measured by the 2 cm survey and those measured in this paper. Many of the independent apparent speed measurements agree very well, but for approximately 25% of the components we find significant differences in the apparent speeds measured by the two surveys. The leading cause of these discrepancies is differences in how the two surveys have identified jet components from epoch to epoch.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: Jets - Radio Continuum: Galaxies

VizieR on-line data: <Available at CDS (J/AJ/133/2357): table2.dat table3.dat table4.dat>

Simbad objects: 88

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Number of rows : 88
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 6C 001403+811827 BLL 00 17 08.47489694 +81 35 08.1365094   17.60 16.52 15.95   ~ 405 1
3 QSO B0048-09 BLL 00 50 41.3172421464 -09 29 05.210474100 16.74 16.39 16.22 16.14   ~ 480 2
4 7C 0059+5808 Bla 01 02 45.76237340 +58 24 11.1366164   20.09 19.22 18.57 17.90 ~ 262 1
5 QSO B0104-408 Bla 01 06 45.10796439 -40 34 19.9603733   18.60 19.0 19.25   ~ 136 1
6 UGC 773 BLL 01 13 43.14494773 +02 22 17.3162687   16.4 16.0 11.22   ~ 145 1
7 QSO B0119+115 Bla 01 21 41.59504128 +11 49 50.4132344   19.5 19.70 18.61   ~ 200 1
8 QSO B0119+041 Bla 01 21 56.86169274 +04 22 24.7342932   19.2 19.5 19.40   ~ 200 1
9 6C 013354+473615 Bla 01 36 58.59480326 +47 51 29.1000720     19.50 19.25 15.21 ~ 537 1
10 QSO B0146+056 Bla 01 49 22.37088634 +05 55 53.5685702   20.7 19.0 20.30   ~ 136 1
11 QSO B0201+113 Bla 02 03 46.65705710 +11 34 45.4094619   19.5 19.5 19.41   ~ 216 1
12 4C 15.05 Bla 02 04 50.41389294 +15 14 11.0436097   21.9 21.00 21.00   ~ 426 1
13 4C 13.14 Bla 02 31 45.89405619 +13 22 54.7162847   17.96 17.71 17.93   ~ 291 1
14 4C 28.07 Bla 02 37 52.40567519 +28 48 08.9899986     19.30 16.99   ~ 654 1
15 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
16 QSO B0336-0156 Bla 03 39 30.93778633 -01 46 35.8041892   18.96 18.41 17.33   ~ 598 1
17 QSO J0403-3605 Bla 04 03 53.74990003 -36 05 01.9131880   17.04 17.17 16.67   ~ 313 1
18 MCG+01-12-009 Bla 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 2099 2
19 QSO J0457-2324 Bla 04 57 03.1791422424 -23 24 52.021129572   18.85 18.5 16.56   ~ 435 1
20 4C -02.19 Bla 05 01 12.80988538 -01 59 14.2564557   19.1 18.06 19.04   ~ 624 1
21 QSO J0530+13 Bla 05 30 56.41674741 +13 31 55.1494688     20.00 19.35   ~ 1004 1
22 QSO B0537-441 BLL 05 38 50.36155950 -44 05 08.9390233   15.77 16.48 16   ~ 924 2
23 7C 055201.39+394824.00 Bla 05 55 30.80561419 +39 48 49.1649683     18.30 17.5   ~ 527 2
24 NVSS J055932+235354 Rad 05 59 32.03313313 +23 53 53.9267334           ~ 52 1
25 7C 064253.00+445430.00 Bla 06 46 32.02599653 +44 51 16.5901185   19.57 18.49 18.64   ~ 370 1
26 ICRF J072611.7+791131 Bz? 07 26 11.73523889 +79 11 31.0162113       23.08   ~ 53 0
27 QSO J0730-116 Bla 07 30 19.11247452 -11 41 12.6006642     20.30 20.3   ~ 323 1
28 QSO B0742+103 Bla 07 45 33.05952486 +10 11 12.6922178     24.00 23.72   ~ 200 1
29 4C 54.15 BLL 07 53 01.38457270 +53 52 59.6370830   18.5   16.77   ~ 173 1
30 7C 080458.39+495918.00 Bla 08 08 39.66628970 +49 50 36.5304041   19.55 19.18 18.34   ~ 389 2
31 7C 080533.60+410130.00 Bla 08 08 56.65204477 +40 52 44.8888932   19.87 19.41 16.61   ~ 149 1
32 QSO B0823+033 BLL 08 25 50.33835759 +03 09 24.5199749   17.81 17.23 16.91   ~ 352 1
33 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
34 QSO B0919-260 Bla 09 21 29.35386197 -26 18 43.3863288   18.46 18.41 18.01   ~ 144 1
35 QSO B0920-397 Bla 09 22 46.41826886 -39 59 35.0682386   18.12 18.8     ~ 143 1
36 4C 39.25 Bla 09 27 03.01394144 +39 02 20.8518067   17.17 17.00 16.486   ~ 1036 1
37 7C 095359.3+252945 Bla 09 56 49.87537985 +25 15 16.0498155   17.46 17.21 17.96   ~ 367 2
38 US 1139 Bla 09 58 19.67164698 +47 25 07.8424065   18.78 18.62 18.39   ~ 264 1
39 QSO J1007+1356 Bla 10 07 41.49808928 +13 56 29.6007670     19.0 18.59   ~ 131 1
40 4C 19.34 Bla 10 24 44.80959654 +19 12 20.4155021   17.95 17.49 16.41   ~ 167 1
41 QSO B1034-293 Bla 10 37 16.07974265 -29 34 02.8134977   16.46 16.46 17.54   ~ 358 1
42 6C 104451+715930 Bla 10 48 27.61992778 +71 43 35.9384142     19.0 17.49   ~ 270 1
43 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
44 QSO B1124-186 Bla 11 27 04.39245388 -18 57 17.4418445   19.17 18.65 19.23   ~ 254 1
45 7C 112812.59+383153.00 Bla 11 30 53.28261620 +38 15 18.5469361   19.11 18.80 19.42   ~ 233 1
46 QSO B1144-3755 BLL 11 47 01.37071212 -38 12 11.0235229   19.03 16.2 16.72   ~ 320 1
47 QSO B1145-071 Bla 11 47 51.55403485 -07 24 41.1411766   19.0 18.5 18.10   ~ 211 1
48 Ton 599 Bla 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 989 1
49 4C 04.42 Bla 12 22 22.54962606 +04 13 15.7760715   17.88 17.98 17.06   ~ 354 1
50 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
51 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
52 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
53 QSO B1255-316 Bla 12 57 59.06083282 -31 55 16.8516590   19.06   17.86   ~ 108 1
54 7C 130046.50+580438.00 Bla 13 02 52.46528286 +57 48 37.6093029   20.47 19.76 20.63   ~ 124 1
55 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
56 QSO B1313-333 Bla 13 16 07.98594757 -33 38 59.1726741   18.04 20.0 17.23   ~ 267 1
57 QSO B1334-127 Bla 13 37 39.78278132 -12 57 24.6933925   18.5 19.00 16.22   ~ 540 1
58 QSO B1351-018 Bla 13 54 06.89532721 -02 06 03.1904962   20.62 19.91 19.277   ~ 177 1
59 6C 135734+765743 Bla 13 57 55.37154275 +76 43 21.0509950     19.0 20.27   ~ 134 1
60 Mrk 668 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 826 3
61 6C 141804+543700 BLL 14 19 46.5974051952 +54 23 14.787857796   16.17 15.65 14.16   ~ 630 1
62 QSO B1424-41 Bla 14 27 56.29756617 -42 06 19.4376238   18.48 17.7 16.30   ~ 547 1
63 QSO B1451-375 Bla 14 54 27.40976313 -37 47 33.1448219   16.36 16.69 16.14   ~ 201 1
64 ESO 514-1 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 815 3
65 4C 10.45 Bla 16 08 46.20318700 +10 29 07.7757424   18.5 18.70 18.03   ~ 409 1
66 6C 161147+342017 Bla 16 13 41.06424322 +34 12 47.9088535   17.98 17.46 17.07   ~ 673 1
67 QSO B1622-253 Bla 16 25 46.89164287 -25 27 38.3268734   21.3 20.6 19.60   ~ 381 1
68 6C 163852+395305 Bla 16 40 29.63277140 +39 46 46.0284071   18.4 19.37 18.75   ~ 336 2
69 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
70 7C 172601.30+453309.00 BLL 17 27 27.65080202 +45 30 39.7312530   19.0 18.10 16.64   ~ 233 2
71 4C 51.37 Bla 17 40 36.97784792 +52 11 43.4073694   18.16 18.70 16.73   ~ 441 1
72 QSO B1741-038 Bla 17 43 58.85613537 -03 50 04.6167326     20.40 17.98   ~ 583 1
73 4C 62.29 QSO 17 46 14.03413499 +62 26 54.7383195   20.91 19.51     ~ 124 1
74 4C 09.57 BLL 17 51 32.81857326 +09 39 00.7284066   17.46 16.78 15.57   ~ 1007 1
75 1RXS J180043.6+782806 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 15.90 16.134   ~ 793 1
76 QSO B1908-202 Bla 19 11 09.65289294 -20 06 55.1090664   18.21   18.14   ~ 306 1
77 QSO B1921-293 BLL 19 24 51.05595254 -29 14 30.1210248   18.71 18.21 15.07   ~ 918 1
78 4C 73.18 BLL 19 27 48.4947009120 +73 58 01.572558816     16.06 15.11   ~ 562 2
79 QSO B1954-388 Bla 19 57 59.81927491 -38 45 06.3558881   18.47 17.07 16.73   ~ 239 1
80 QSO B1958-179 Bla 20 00 57.09043927 -17 48 57.6726139   18.02 18.60 15.33   ~ 288 1
81 QSO B2052-474 Bla 20 56 16.35980507 -47 14 47.6277179   18.29 19.1 18.07   ~ 341 1
82 QSO B2136+1410 Bla 21 39 01.30926630 +14 23 35.9921774     18.90 18.22   ~ 264 1
83 4C 06.69 Bla 21 48 05.45866779 +06 57 38.6041877   16.85 16.47 15.06   ~ 703 1
84 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
85 4C 11.69 Bla 22 32 36.40890093 +11 43 50.9040592   17.75 17.33     ~ 1205 2
86 QSO B2232+282 BLL 22 36 22.47084387 +28 28 57.4132050   19.1 19.0 17.60   ~ 306 2
87 QSO J2246-1206 Bla 22 46 18.23197022 -12 06 51.2775983   16.63 16.45 15.99   ~ 293 1
88 QSO B2255-2814 Bla 22 58 05.96287687 -27 58 21.2567572   17.34 16.77 17.20   ~ 397 1

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